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#1
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18 mini plexi pwr supply ripple / headache ..
I have a severe 60 hum being produced by by my home brew OctomberPlexi: http://www.freewebs.com/willispage8/...buildpage1.htm I've cured some wrong components over the past weeks in the tone/PS circuit that certainly awoken the beast. Now, I have this intolerable 60 oscillation that I think I have traced to the PT ( Weber 25130 ). I back tracked the noise to the rectifier circuit: There are diodes in series ( D1 - D2 on one leg, and D3- D4 ) for the full wave rectifier, and connecting a scope between D1 and D2 produces this weird wave sign that appears on B+ as a sawtooth ripple: http://www.freewebs.com/willispage8/pwrsupp02.jpg Here is a little more detailed document on it: http://www.freewebs.com/willispage8/...pwrproblem.doc I'm convinced it's the $50 PT ... simply because I replaced the diodes and I used the alternate higher voltage taps and I get the same result. Thoughts ? |
#2
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18 mini plexi pwr supply ripple / headache ..
"WB" I have a severe 60 hum being produced by by my home brew OctomberPlexi: http://www.freewebs.com/willispage8/...buildpage1.htm I've cured some wrong components over the past weeks in the tone/PS circuit that certainly awoken the beast. Now, I have this intolerable 60 oscillation that I think I have traced to the PT ( Weber 25130 ). I back tracked the noise to the rectifier circuit: There are diodes in series ( D1 - D2 on one leg, and D3- D4 ) for the full wave rectifier, and connecting a scope between D1 and D2 produces this weird wave sign that appears on B+ as a sawtooth ripple: http://www.freewebs.com/willispage8/pwrsupp02.jpg ** The flat topped 1/2 wave seen between the two series diodes is correct. Here is a little more detailed document on it: http://www.freewebs.com/willispage8/...pwrproblem.doc ** Where is that other wave from in the circuit ?? The hum is likely caused by bad wiring layout, a bad earthing scheme OR you have swapped the A and B supplies. BTW The schem shows the 50uF cap in the bias supply wired backwards. ...... Phil |
#3
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18 mini plexi pwr supply ripple / headache ..
Phil Allison wrote:
"WB" There are diodes in series ( D1 - D2 on one leg, and D3- D4 ) for the full wave rectifier, and connecting a scope between D1 and D2 produces this weird wave sign that appears on B+ as a sawtooth ripple: http://www.freewebs.com/willispage8/pwrsupp02.jpg ** The flat topped 1/2 wave seen between the two series diodes is correct. But !!! ... Both traces are at the same point in the two legs of the series diodes, (in between). The top trace is what I would expect ( 1/2 wave of rectifer), and the little turd on the bottom trace is what I perceive as garbage. Open up the octp1/18wPwrProblem.doc to see traces without and w/ load ... added notes. Maybe I'm on a false lead ... and it really is ****ty wiring. ( ps .. never trust the schematic ... the actual circuit is right ;-) likely a older version ). |
#4
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18 mini plexi pwr supply ripple / headache ..
WB wrote:
I have a severe 60 hum being produced by by my home brew OctomberPlexi: http://www.freewebs.com/willispage8/...buildpage1.htm I've cured some wrong components over the past weeks in the tone/PS circuit that certainly awoken the beast. Now, I have this intolerable 60 oscillation that I think I have traced to the PT ( Weber 25130 ). I back tracked the noise to the rectifier circuit: There are diodes in series ( D1 - D2 on one leg, and D3- D4 ) for the full wave rectifier, and connecting a scope between D1 and D2 produces this weird wave sign that appears on B+ as a sawtooth ripple: http://www.freewebs.com/willispage8/pwrsupp02.jpg Here is a little more detailed document on it: http://www.freewebs.com/willispage8/...pwrproblem.doc I'm convinced it's the $50 PT ... simply because I replaced the diodes and I used the alternate higher voltage taps and I get the same result. Thoughts ? If it's 60 Hz hum - not 120 - it's not likely to be the HV supply. Possible culprit: bias supply. Chek the bias cap polarity. If there's not enough capacitance or a poor ground in the bias supply, a 60 Hz ripple will be applied to the grids of the output tubes. Possible culprit: Filament lead dress. How are your filament leads done - loosely twisted and down against the chassis, like Marshall does it, or tightly twisted and up in the air, like Fender does it? Is the amplitude or the tone of the hum affected by any of the controls? If the amp has an NFB loop, disconnect it. What happens to the hum level? What happens when you pull the PI tube? Lord Valve Expert |
#5
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18 mini plexi pwr supply ripple / motorboatin now..
Lord Valve wrote:
WB wrote: If it's 60 Hz hum - not 120 - it's not likely to be the HV supply. yes .. with a fresh mind and PS comments, I am leaning away from that. I'm still seeing a sizable ac ripple ( 3v rms) . Possible culprit: bias supply. Chek the bias cap polarity. If there's not enough capacitance or a poor ground in the bias supply, a 60 Hz ripple will be applied to the grids of the output tubes. will do .. it is 60 .. meter on the OT jack sez so. Possible culprit: Filament lead dress. How are your filament leads done - loosely twisted and down against the chassis, like Marshall does it, or tightly twisted and up in the air, like Fender does it? more American than UK ... Is the amplitude or the tone of the hum affected by any of the controls? Yes .. no signal input ... ( input jack shunted ) the amp starts motor boating with the gain and master about 1/3 up .. then the frequency wobbles up/dn when one or the other are changed. If the amp has an NFB loop, disconnect it. What No NFB happens to the hum level? What happens when you pull the PI tube? Dead / quiet .. nothing ( as expected ?) Expert Also .. I have no feedback loop yet from the secondary .. if that matters. |
#6
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18 mini plexi pwr supply ripple / motorboatin now..
WB wrote:
Lord Valve wrote: WB wrote: If it's 60 Hz hum - not 120 - it's not likely to be the HV supply. yes .. with a fresh mind and PS comments, I am leaning away from that. I'm still seeing a sizable ac ripple ( 3v rms) . That's not large. Possible culprit: bias supply. Chek the bias cap polarity. If there's not enough capacitance or a poor ground in the bias supply, a 60 Hz ripple will be applied to the grids of the output tubes. will do .. it is 60 .. meter on the OT jack sez so. Possible culprit: Filament lead dress. How are your filament leads done - loosely twisted and down against the chassis, like Marshall does it, or tightly twisted and up in the air, like Fender does it? more American than UK ... Is the amplitude or the tone of the hum affected by any of the controls? Yes .. no signal input ... ( input jack shunted ) the amp starts motor boating with the gain and master about 1/3 up .. then the frequency wobbles up/dn when one or the other are changed. This is the first time you've said anything about motorboating. I thought your problem was hum. They're not the same. If the amp has an NFB loop, disconnect it. What No NFB happens to the hum level? What happens when you pull the PI tube? Dead / quiet .. nothing ( as expected ?) That would eliminate the HV supply and the bias supply. Also .. I have no feedback loop yet from the secondary .. if that matters. "Yet?" Is the amp finished? Lord Valve Expert |
#7
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18 mini plexi pwr supply ripple / headache ..
"Lord Valve" wrote in message ... WB wrote: I have a severe 60 hum being produced by by my home brew OctomberPlexi: http://www.freewebs.com/willispage8/...buildpage1.htm I've cured some wrong components over the past weeks in the tone/PS circuit that certainly awoken the beast. Now, I have this intolerable 60 oscillation that I think I have traced to the PT ( Weber 25130 ). I back tracked the noise to the rectifier circuit: There are diodes in series ( D1 - D2 on one leg, and D3- D4 ) for the full wave rectifier, and connecting a scope between D1 and D2 produces this weird wave sign that appears on B+ as a sawtooth ripple: http://www.freewebs.com/willispage8/pwrsupp02.jpg Here is a little more detailed document on it: http://www.freewebs.com/willispage8/...pwrproblem.doc I'm convinced it's the $50 PT ... simply because I replaced the diodes and I used the alternate higher voltage taps and I get the same result. Thoughts ? If it's 60 Hz hum - not 120 - it's not likely to be the HV supply. Possible culprit: bias supply. Chek the bias cap polarity. If there's not enough capacitance or a poor ground in the bias supply, a 60 Hz ripple will be applied to the grids of the output tubes. WB, I don't know much, espeically about using a scope, but, IMO, that bottom trace is ugly. Methinks there is no harm in raising the filter cap value in the bias supply circuit. Certainly worth trying, but I'd look at filament supply first. Possible culprit: Filament lead dress. How are your filament leads done - loosely twisted and down against the chassis, like Marshall does it, or tightly twisted and up in the air, like Fender does it? I looked at your pictures and I think this is worth chasing. Your wiring job (please don't take this the wrong way) leaves something to be desired. In picture #10, the blue/red wire appears to cross OVER the filament string. Then there is a red wire that IMO runs too close to the filament string. In general, your filament string isn't high enough off the chassis. If this were mine, I'd put some effort into raising those filament wires up in the air more and get them away from any B+ or signal wires. You know, the guys at 18watt.com seem to really like the idea of elevating the filament supply by running the artificial CT into the power tube cathode, and they suggest it has a meaningful effect on hum. This is also worth a try, but first I'd work the filament lead dress for all I could. Like I said above, I don't know anything about using a scope, but I keep thinking that ugly thing on the bottom is filament bleed. Further, maybe just coincidence, 3v is half of the filament supply. Is the amplitude or the tone of the hum affected by any of the controls? If the amp has an NFB loop, disconnect it. What happens to the hum level? What happens when you pull the PI tube? Lord Valve Expert Just my 2 cents. Regards, Phil Rank amateur and know-nothing. |
#8
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18 mini plexi pwr supply ripple / headache ..
"WB" Phil Allison wrote: There are diodes in series ( D1 - D2 on one leg, and D3- D4 ) for the full wave rectifier, and connecting a scope between D1 and D2 produces this weird wave sign that appears on B+ as a sawtooth ripple: http://www.freewebs.com/willispage8/pwrsupp02.jpg ** The flat topped 1/2 wave seen between the two series diodes is correct. But !!! ... Both traces are at the same point in the two legs of the series diodes, (in between). ** OK - but you are not linking them to the scope the same way, are you. One is going via a 10:1 probe with the scope set to DC coupling - while the other ( low voltage one) is going via a 1:1 probe set to AC coupling. Along with variable diode leakage, that may well explain it. Long as the two 240 volt AC waves going are OK and you have a few volts of 120 Hz saw tooth on the first filter cap - all is well there. Have you checked that DC supplies A and B are the right way round ?? ...... Phil |
#9
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18 mini plexi pwr supply ripple / headache ..
Phil S. wrote: "Lord Valve" wrote in message ... WB wrote: I have a severe 60 hum being produced by by my home brew OctomberPlexi: http://www.freewebs.com/willispage8/...buildpage1.htm I've cured some wrong components over the past weeks in the tone/PS circuit that certainly awoken the beast. Now, I have this intolerable 60 oscillation that I think I have traced to the PT ( Weber 25130 ). I back tracked the noise to the rectifier circuit: There are diodes in series ( D1 - D2 on one leg, and D3- D4 ) for the full wave rectifier, and connecting a scope between D1 and D2 produces this weird wave sign that appears on B+ as a sawtooth ripple: http://www.freewebs.com/willispage8/pwrsupp02.jpg Here is a little more detailed document on it: http://www.freewebs.com/willispage8/...pwrproblem.doc I'm convinced it's the $50 PT ... simply because I replaced the diodes and I used the alternate higher voltage taps and I get the same result. Thoughts ? If it's 60 Hz hum - not 120 - it's not likely to be the HV supply. Possible culprit: bias supply. Chek the bias cap polarity. If there's not enough capacitance or a poor ground in the bias supply, a 60 Hz ripple will be applied to the grids of the output tubes. WB, I don't know much, espeically about using a scope, but, IMO, that bottom trace is ugly. Methinks there is no harm in raising the filter cap value in the bias supply circuit. Certainly worth trying, but I'd look at filament supply first. Possible culprit: Filament lead dress. How are your filament leads done - loosely twisted and down against the chassis, like Marshall does it, or tightly twisted and up in the air, like Fender does it? I looked at your pictures and I think this is worth chasing. Your wiring job (please don't take this the wrong way) leaves something to be desired. In picture #10, the blue/red wire appears to cross OVER the filament string. Then there is a red wire that IMO runs too close to the filament string. In general, your filament string isn't high enough off the chassis. If this were mine, I'd put some effort into raising those filament wires up in the air more and get them away from any B+ or signal wires. You know, the guys at 18watt.com seem to really like the idea of elevating the filament supply by running the artificial CT into the power tube cathode, and they suggest it has a meaningful effect on hum. This is also worth a try, but first I'd work the filament lead dress for all I could. Like I said above, I don't know anything about using a scope, but I keep thinking that ugly thing on the bottom is filament bleed. Further, maybe just coincidence, 3v is half of the filament supply. Is the amplitude or the tone of the hum affected by any of the controls? If the amp has an NFB loop, disconnect it. What happens to the hum level? What happens when you pull the PI tube? Lord Valve Expert Just my 2 cents. Regards, Phil Rank amateur and know-nothing. Me thinks you've taken humility to a new level. :-) mvm I have to doff the cap to guys who focus on proper grounding schemes, clean wiring (right angles vs. parallel re; signal and power etc.). I know next to nothing about electronics, but I've read a lot from Hunter's books to Weber's and always read the VG columns and GP columns. I know enough to know that my involvement w/ the amp stops at its controls, but I do appreciate and admire the craft of audio repair / building, etc. http://tinyurl.com/32j32m |
#10
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18 mini plexi pwr supply ripple / motorboatin now..
"WB" wrote in message . .. Lord Valve wrote: WB wrote: If it's 60 Hz hum - not 120 - it's not likely to be the HV supply. yes .. with a fresh mind and PS comments, I am leaning away from that. I'm still seeing a sizable ac ripple ( 3v rms) . Possible culprit: bias supply. Chek the bias cap polarity. If there's not enough capacitance or a poor ground in the bias supply, a 60 Hz ripple will be applied to the grids of the output tubes. will do .. it is 60 .. meter on the OT jack sez so. Possible culprit: Filament lead dress. How are your filament leads done - loosely twisted and down against the chassis, like Marshall does it, or tightly twisted and up in the air, like Fender does it? more American than UK ... Is the amplitude or the tone of the hum affected by any of the controls? Yes .. no signal input ... ( input jack shunted ) the amp starts motor boating with the gain and master about 1/3 up .. then the frequency wobbles up/dn when one or the other are changed. If the amp has an NFB loop, disconnect it. What No NFB happens to the hum level? What happens when you pull the PI tube? Dead / quiet .. nothing ( as expected ?) Expert Also .. I have no feedback loop yet from the secondary .. if that matters. In doing any sort of problem solving, my approach is to simplify as much as possible and work on the most basic things first. You've also got to make some assumptions, some of which may prove wrong later (like the PT is somehow bad). In this case, I think the filament supply is the simplest thing to attack. Your own description of the filament wiring, "more American than UK ..." suggests to me you already know the job isn't right. Perhaps, you've got the worst of both styles. Because you've got it hanging low to the chassis and too close to some wires, you've got little to lose and lots to gain by reworking this. If you feel that twisted pair up in the air is logistically problemmatic, maybe you try zip cord on the chassis floor and do what you can to lift the PS and signal wires away from it. Maybe you need to watch Gabi wiring the filaments? http://www.youtube.com/watch?v=ZxFBi...eature=related Assuming you haven't seen this before, IMO he does too much talking and not enough working, but he makes some good points. Remember to chuck the wire in your drill and twist it nice and tight before you work with it. Sorry for pushing my point. I'm not trying to be a PITA. Phil |
#11
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18 mini plexi pwr supply ripple / headache ..
flipper wrote:
Thoughts ? Well, I suspect you have it wired right but just for the sake of double checking, on your schematic for the Weber transformer taps to the hi/low switch you show the color codes correctly but physically show them on the wrong taps in the winding diagram. I.E. 'Red' should be the outer tap on both ends, not one end tap and one inner tap. Rd/Wt are the inner taps. If they're on the 'physically wrong' taps then you'd certainly get a different waveform on the two diode pairs because one would be putting out a higher voltage than the other and, depending on the load (and cap charge), one pair might not even conduct. Even if it did your ripple would be predominately 60Hz. Also, bias 'E' doesn't seem to go anywhere. In another thread you mentioned motor boating and it looks to me like you have 3 stages on the same RC filter point (C) with rather modest filtering. I'd add at least another stage after the phase splitter and note that Marshal, which seems to be the basic topology you're borrowing from, places another between the two triode gain stages with each being typically 10K into 50uF for, like say, a JCM800. I suspect you could get by with 10k into 33 uF. May not be necessary but I'd also increase the 'C' cap to 33uf. Or do them all 47uF ala Marshal. I also wonder if you've got excessive gain. If so you might want to keep in the back of your mind pulling out that V2 cathode bypass cap. Thanks for the insight ! Have you built a TMB before ? |
#12
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18 mini plexi pwr supply ripple / headache ..
On Sun, 20 Jul 2008 18:47:08 -0500, WB wrote:
I have a severe 60 hum being produced by by my home brew OctomberPlexi: http://www.freewebs.com/willispage8/...buildpage1.htm I've cured some wrong components over the past weeks in the tone/PS circuit that certainly awoken the beast. Now, I have this intolerable 60 oscillation that I think I have traced to the PT ( Weber 25130 ). I back tracked the noise to the rectifier circuit: There are diodes in series ( D1 - D2 on one leg, and D3- D4 ) for the full wave rectifier, and connecting a scope between D1 and D2 produces this weird wave sign that appears on B+ as a sawtooth ripple: http://www.freewebs.com/willispage8/pwrsupp02.jpg Here is a little more detailed document on it: http://www.freewebs.com/willispage8/...pwrproblem.doc I'm convinced it's the $50 PT ... simply because I replaced the diodes and I used the alternate higher voltage taps and I get the same result. Thoughts ? How about the filter cap values? The November I am studying has 5 32mfd @450 volts and yours are assorted values..where are the 50mfd caps? Tried 100v?Might dl the Rev 11 and compare values for an idea..is the coil big enough? Looks like the MM 5h coil I have (choke) for the Marshall 45... Did you pet the cat? |
#13
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18 mini plexi pwr supply ripple / headache ..
On Tue, 22 Jul 2008 19:39:30 -0500, flipper wrote:
Bought the knobs, though Tsk tsk.just throwing money at it huh...lol |
#14
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18 mini plexi pwr supply ripple / headache ..
"flipper" wrote in message ... On Wed, 23 Jul 2008 00:08:32 -0500, JP wrote: On Tue, 22 Jul 2008 19:39:30 -0500, flipper wrote: Bought the knobs, though Tsk tsk.just throwing money at it huh...lol Hehe. Yeah. I was , of course, joking a bit as I also bought the chassis and miscellaneous small parts but, compared to the vast majority being 'junk', the aluminum skirt numbered knobs were a 'major' expense. Where I really splurged was on the $1.40 pots from Mouser rather than 55 cents from Futurlec because, while their prices (on some items) are terrific, their delivery is slower than a row boat from China. And they don't carry a 1Meg audio taper nor 25k of either flavor anyway. There is no such thing as a $0.55 pot. The *real* price is calculated to spread the shipping cost. These days, even if you drive to the store, if it's 10 miles round trip and your car gets 30 mpg (unlikely), you still pay at least $1.00 (surely $1.50 if you live in CA) for the gas to drive there and let's say there is 5% sales tax, that $0.55 pot is well north of $2. Just grousing. It just seems fundamentally wrong that the transporation cost is out of proportion to the cost of the item. The only solution is to buy enough stuff, and what's the fun of that? Thanks for listening. Phil |
#15
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18 mini plexi pwr supply ripple / headache ..
On Wed, 23 Jul 2008 02:16:19 -0500, flipper wrote:
Futurlec Good prices though... |
#16
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18 mini plexi pwr supply ripple / headache ..
On Wed, 23 Jul 2008 09:54:04 -0400, "Phil S."
wrote: "flipper" wrote in message .. . On Wed, 23 Jul 2008 00:08:32 -0500, JP wrote: On Tue, 22 Jul 2008 19:39:30 -0500, flipper wrote: Bought the knobs, though Tsk tsk.just throwing money at it huh...lol Hehe. Yeah. I was , of course, joking a bit as I also bought the chassis and miscellaneous small parts but, compared to the vast majority being 'junk', the aluminum skirt numbered knobs were a 'major' expense. Where I really splurged was on the $1.40 pots from Mouser rather than 55 cents from Futurlec because, while their prices (on some items) are terrific, their delivery is slower than a row boat from China. And they don't carry a 1Meg audio taper nor 25k of either flavor anyway. There is no such thing as a $0.55 pot. The *real* price is calculated to spread the shipping cost. These days, even if you drive to the store, if it's 10 miles round trip and your car gets 30 mpg (unlikely), you still pay at least $1.00 (surely $1.50 if you live in CA) for the gas to drive there and let's say there is 5% sales tax, that $0.55 pot is well north of $2. Just grousing. It just seems fundamentally wrong that the transporation cost is out of proportion to the cost of the item. The only solution is to buy enough stuff, and what's the fun of that? Thanks for listening. Phil somethings wrong if I don't have to reorder on a project...lol |
#17
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18 mini plexi pwr supply ripple / headache ..
"JP" wrote in message news On Wed, 23 Jul 2008 02:16:19 -0500, flipper wrote: Futurlec Good prices though... Yikes! Dirt cheap! As long as you're not picky, it's time to stock up. |
#18
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18 mini plexi pwr supply ripple / headache ..
On Wed, 23 Jul 2008 16:08:01 -0400, "Phil S."
wrote: "JP" wrote in message news On Wed, 23 Jul 2008 02:16:19 -0500, flipper wrote: Futurlec Good prices though... Yikes! Dirt cheap! As long as you're not picky, it's time to stock up. That's what I say... |
#19
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18 mini plexi pwr supply ripple / headache ..
"flipper" wrote in message ... On Wed, 23 Jul 2008 16:08:01 -0400, "Phil S." wrote: "JP" wrote in message news On Wed, 23 Jul 2008 02:16:19 -0500, flipper wrote: Futurlec Good prices though... Yikes! Dirt cheap! As long as you're not picky, it's time to stock up. Since people seem to have discovered them from my post I feel obligated to make a few comments. They do have good prices on some things, although on others I find Mouser is just as good if not cheaper, but they also seem to be rather.. uh.. lackadaisical and you don't always get what you think you ordered. The problem seems to crop up more with connectors. Like, I ordered switched mono phone jacks and got non switched mono phone jacks. They did make good, by refunding the price, but, by then, I was row boat from China late on the project and didn't have the switched phone jacks I needed. I ended up buying from Mouser because I couldn't find out if they just picked the wrong part, or put the wrong part in the bin, or the description was wrong. Great price, though... for the wrong part. Another time I ordered a pair of speaker binding posts and while I got a pairs of speaker binding posts they were two different types. Would 'work' but look like crap on a 'stereo' amplifier. They also say their knobs "Suits 1/4" Shafts." Well, none of the aluminum ones I got do. They're 6mm and Futurlec still has the wrong description even after I notified them, more than once, of the problem. They'll work on *their* pots, because those are 6mm (T18 knurled shaft) too, but they will not go on a 1/4" shaft. One of the most irritating issues was an astronomically late, even by Futurlec standards, order and when I contacted them it turned out the entire order was being held for one part on backorder even though the online order status I had been checking said "shipped." Worse yet, they seemed completely oblivious as to why I might consider that a problem. I haven't had a problem with semiconductors, resistors, and caps, and still occasionally use them but not for things I 'need', and on time, and 'right'. There is always a catch. I wondered about the 1/4" jacks and plugs, which are designated in the description with a metric, "equivalent" of 6.5mm. Call me old fashioned, but I calculate (2.54*.25) about 6.35mm = 1/4", so I'm wondering if this is a simple case of some "standard" equivalent or if the jacks are sloppy big and the plugs are too fat. I suppose at that price, I'd be willing to test one, but not buy a handful. The point is, I don't like tbe wondering when I order. I have a feeling I'll give them a try for my next build. I'm not typically in a hurry. I haven't decided yet what I'm building! BTW, I noticed they are clueless about "sockets". They don't have anything useful in that category at all, LOL! |
#20
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18 mini plexi pwr supply ripple / headache ..
On Thu, 24 Jul 2008 00:27:02 -0500, flipper wrote:
On Wed, 23 Jul 2008 16:08:01 -0400, "Phil S." wrote: "JP" wrote in message news On Wed, 23 Jul 2008 02:16:19 -0500, flipper wrote: Futurlec Good prices though... Yikes! Dirt cheap! As long as you're not picky, it's time to stock up. Since people seem to have discovered them from my post I feel obligated to make a few comments. They do have good prices on some things, although on others I find Mouser is just as good if not cheaper, but they also seem to be rather.. uh.. lackadaisical and you don't always get what you think you ordered. The problem seems to crop up more with connectors. Like, I ordered switched mono phone jacks and got non switched mono phone jacks. They did make good, by refunding the price, but, by then, I was row boat from China late on the project and didn't have the switched phone jacks I needed. I ended up buying from Mouser because I couldn't find out if they just picked the wrong part, or put the wrong part in the bin, or the description was wrong. Great price, though... for the wrong part. Another time I ordered a pair of speaker binding posts and while I got a pairs of speaker binding posts they were two different types. Would 'work' but look like crap on a 'stereo' amplifier. They also say their knobs "Suits 1/4" Shafts." Well, none of the aluminum ones I got do. They're 6mm and Futurlec still has the wrong description even after I notified them, more than once, of the problem. They'll work on *their* pots, because those are 6mm (T18 knurled shaft) too, but they will not go on a 1/4" shaft. One of the most irritating issues was an astronomically late, even by Futurlec standards, order and when I contacted them it turned out the entire order was being held for one part on backorder even though the online order status I had been checking said "shipped." Worse yet, they seemed completely oblivious as to why I might consider that a problem. I haven't had a problem with semiconductors, resistors, and caps, and still occasionally use them but not for things I 'need', and on time, and 'right'. Thanks for the warning...the resistors seem to be a fair price...think they are ordering from China and then shipping? I ordered some prescription sunglasses from some net place like $13 glasses or some such place and they got to me about 4 weeks later from China. They were sort of out of focus but my eyes adjusted okay. The case smelled like benezene fumes or something...had to put it on the back porch open for a week or so...but now they are working although the lens has a spot rubbed on it form the plastic eyepiece rubbing on it closed in the case...anyway...back to topic |
#21
Posted to alt.guitar.amps,rec.audio.tubes
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18 mini plexi pwr supply ripple / headache ..
On Wed, 23 Jul 2008 23:18:26 -0500, flipper wrote:
On Wed, 23 Jul 2008 09:54:04 -0400, "Phil S." wrote: "flipper" wrote in message . .. On Wed, 23 Jul 2008 00:08:32 -0500, JP wrote: On Tue, 22 Jul 2008 19:39:30 -0500, flipper wrote: Bought the knobs, though Tsk tsk.just throwing money at it huh...lol Hehe. Yeah. I was , of course, joking a bit as I also bought the chassis and miscellaneous small parts but, compared to the vast majority being 'junk', the aluminum skirt numbered knobs were a 'major' expense. Where I really splurged was on the $1.40 pots from Mouser rather than 55 cents from Futurlec because, while their prices (on some items) are terrific, their delivery is slower than a row boat from China. And they don't carry a 1Meg audio taper nor 25k of either flavor anyway. There is no such thing as a $0.55 pot. The *real* price is calculated to spread the shipping cost. True, of course, but then that applies to everything and it's difficult to make a generic comparison that includes 'shipping' because there's no way to know what else someone is buying in the same lot. Not to mention the Mouser pot has to be shipped too, you know On the 'lot' bit, I often look at the shipping for what I 'needed' and if I can toss in some other parts without passing a cost boundary I'll add in some 'stock' items, like extra sockets or whatever... maybe some pots. So, in that case, one could argue they really are 55 cents These days, even if you drive to the store, if it's 10 miles round trip and your car gets 30 mpg (unlikely), you still pay at least $1.00 (surely $1.50 if you live in CA) for the gas to drive there and let's say there is 5% sales tax, that $0.55 pot is well north of $2. Good point, especially with current gas prices. Unless you had to go 'here' and stop by 'there' on the way home. Driving 20 miles RT for just one 55 cent item hasn't been prudent for quite some time but with skyrocketing gas prices it's getting to be downright foolish. Just grousing. It just seems fundamentally wrong that the transporation cost is out of proportion to the cost of the item. The only solution is to buy enough stuff, and what's the fun of that? Thanks for listening. I know. It 'seems' that way but it costs just as much to ship a pot as it does a $2,000 diamond. Well, not counting 'insurance' Phil I suppose that is part of "getting good" in this industry also, being able to order bulk stock and adding special pieces into the bulk order to save money... |
#22
Posted to alt.guitar.amps,rec.audio.tubes
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18 mini plexi pwr supply ripple / headache ..
On Thu, 24 Jul 2008 09:35:44 -0400, "Phil S."
wrote: "flipper" wrote in message .. . On Wed, 23 Jul 2008 16:08:01 -0400, "Phil S." wrote: "JP" wrote in message news On Wed, 23 Jul 2008 02:16:19 -0500, flipper wrote: Futurlec Good prices though... Yikes! Dirt cheap! As long as you're not picky, it's time to stock up. Since people seem to have discovered them from my post I feel obligated to make a few comments. They do have good prices on some things, although on others I find Mouser is just as good if not cheaper, but they also seem to be rather.. uh.. lackadaisical and you don't always get what you think you ordered. The problem seems to crop up more with connectors. Like, I ordered switched mono phone jacks and got non switched mono phone jacks. They did make good, by refunding the price, but, by then, I was row boat from China late on the project and didn't have the switched phone jacks I needed. I ended up buying from Mouser because I couldn't find out if they just picked the wrong part, or put the wrong part in the bin, or the description was wrong. Great price, though... for the wrong part. Another time I ordered a pair of speaker binding posts and while I got a pairs of speaker binding posts they were two different types. Would 'work' but look like crap on a 'stereo' amplifier. They also say their knobs "Suits 1/4" Shafts." Well, none of the aluminum ones I got do. They're 6mm and Futurlec still has the wrong description even after I notified them, more than once, of the problem. They'll work on *their* pots, because those are 6mm (T18 knurled shaft) too, but they will not go on a 1/4" shaft. One of the most irritating issues was an astronomically late, even by Futurlec standards, order and when I contacted them it turned out the entire order was being held for one part on backorder even though the online order status I had been checking said "shipped." Worse yet, they seemed completely oblivious as to why I might consider that a problem. I haven't had a problem with semiconductors, resistors, and caps, and still occasionally use them but not for things I 'need', and on time, and 'right'. There is always a catch. I wondered about the 1/4" jacks and plugs, which are designated in the description with a metric, "equivalent" of 6.5mm. Call me old fashioned, but I calculate (2.54*.25) about 6.35mm = 1/4", so I'm wondering if this is a simple case of some "standard" equivalent or if the jacks are sloppy big and the plugs are too fat. I suppose at that price, I'd be willing to test one, but not buy a handful. The point is, I don't like tbe wondering when I order. I have a feeling I'll give them a try for my next build. I'm not typically in a hurry. I haven't decided yet what I'm building! BTW, I noticed they are clueless about "sockets". They don't have anything useful in that category at all, LOL! You haven't started using the new 6 prong dip profile 6L6's yet..lol Might pay to order one of everything you might want to buy later for a test run and see what ya get...check the ohms and whatnot with a meter...like opening the CrackerJack prize..I was always disappointed...lol |
#23
Posted to alt.guitar.amps,rec.audio.tubes
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18 mini plexi pwr supply ripple / headache ..
On Fri, 25 Jul 2008 03:46:26 -0500, flipper wrote:
On Thu, 24 Jul 2008 09:17:31 -0500, JP wrote: On Thu, 24 Jul 2008 00:27:02 -0500, flipper wrote: On Wed, 23 Jul 2008 16:08:01 -0400, "Phil S." wrote: "JP" wrote in message news On Wed, 23 Jul 2008 02:16:19 -0500, flipper wrote: Futurlec Good prices though... Yikes! Dirt cheap! As long as you're not picky, it's time to stock up. Since people seem to have discovered them from my post I feel obligated to make a few comments. They do have good prices on some things, although on others I find Mouser is just as good if not cheaper, but they also seem to be rather.. uh.. lackadaisical and you don't always get what you think you ordered. The problem seems to crop up more with connectors. Like, I ordered switched mono phone jacks and got non switched mono phone jacks. They did make good, by refunding the price, but, by then, I was row boat from China late on the project and didn't have the switched phone jacks I needed. I ended up buying from Mouser because I couldn't find out if they just picked the wrong part, or put the wrong part in the bin, or the description was wrong. Great price, though... for the wrong part. Another time I ordered a pair of speaker binding posts and while I got a pairs of speaker binding posts they were two different types. Would 'work' but look like crap on a 'stereo' amplifier. They also say their knobs "Suits 1/4" Shafts." Well, none of the aluminum ones I got do. They're 6mm and Futurlec still has the wrong description even after I notified them, more than once, of the problem. They'll work on *their* pots, because those are 6mm (T18 knurled shaft) too, but they will not go on a 1/4" shaft. One of the most irritating issues was an astronomically late, even by Futurlec standards, order and when I contacted them it turned out the entire order was being held for one part on backorder even though the online order status I had been checking said "shipped." Worse yet, they seemed completely oblivious as to why I might consider that a problem. I haven't had a problem with semiconductors, resistors, and caps, and still occasionally use them but not for things I 'need', and on time, and 'right'. Thanks for the warning...the resistors seem to be a fair price. Yeah, they are. I usually get metal film and it turns out that Mouser has Vishay/Dale 1/4 watt 1% metal film at .02 in singles, which matches their 10 lot price. And they don't carry higher wattage in metal film while Mouser does. You may have guessed I'm a Mouser fan. Helps a bit that I'm in the same state and delivery is lightning fast but that's not due solely to the distance. Mouser is lightning fast too and you can forget 'amending' an order because it'll be picked and on it's way to the shipping dock before you can get an email to them. I know because I tried. If I order by 5PM I'll get it the next day, late afternoon, by standard UPS ground. And Mouser's stock makes Futurlec look like a bit player. But you can't beat their pot prices anywhere, not even close. Same goes for the knobs, if you've got 6mm shafts. ..think they are ordering from China and then shipping? Sure feels like it but I don't know. They say "We are a large stockist and supplier of electronic components throughout the world. We carry a large stock and range of components ready for immediate delivery. " But then, in the next sentence, say "We are centrally located near our suppliers in the Asian region, enabling us to fulfil your orders quickly and at reduced prices." While giving a New York address for US and North America. But their web site trace routes to Australia. I ordered some prescription sunglasses from some net place like $13 glasses or some such place and they got to me about 4 weeks later from China. They were sort of out of focus but my eyes adjusted okay. The case smelled like benezene fumes or something...had to put it on the back porch open for a week or so...but now they are working although the lens has a spot rubbed on it form the plastic eyepiece rubbing on it closed in the case...anyway...back to topic I like Mouser also. I need to go find them, so I can see about stopping by when I'm in the city. I am going to Ft. Worth today so if I get a chance, I might just exit at Mansfield and see where they are. That is a smallish suburb town..or used to be smaller... From my location, I can order one day early and get it in the mail the next day (with no back orders).The only thing I hate about Mouser is their web site is geared to engineers, not hobbist although they started as a hobby business...maybe they need two of them...and sometimes searchs turn up no results but the catalog lists parts..search engine is to picky maybe... |
#24
Posted to alt.guitar.amps,rec.audio.tubes
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18 mini plexi pwr supply ripple / headache ..
On Mon, 28 Jul 2008 14:42:15 -0500, flipper wrote:
On Mon, 28 Jul 2008 11:31:47 -0500, JP wrote: On Fri, 25 Jul 2008 03:46:26 -0500, flipper wrote: On Thu, 24 Jul 2008 09:17:31 -0500, JP wrote: On Thu, 24 Jul 2008 00:27:02 -0500, flipper wrote: On Wed, 23 Jul 2008 16:08:01 -0400, "Phil S." wrote: "JP" wrote in message newstie84dtk8shr0c5pa4tv5e4iq7u48t814@4ax. com... On Wed, 23 Jul 2008 02:16:19 -0500, flipper wrote: Futurlec Good prices though... Yikes! Dirt cheap! As long as you're not picky, it's time to stock up. Since people seem to have discovered them from my post I feel obligated to make a few comments. They do have good prices on some things, although on others I find Mouser is just as good if not cheaper, but they also seem to be rather.. uh.. lackadaisical and you don't always get what you think you ordered. The problem seems to crop up more with connectors. Like, I ordered switched mono phone jacks and got non switched mono phone jacks. They did make good, by refunding the price, but, by then, I was row boat from China late on the project and didn't have the switched phone jacks I needed. I ended up buying from Mouser because I couldn't find out if they just picked the wrong part, or put the wrong part in the bin, or the description was wrong. Great price, though... for the wrong part. Another time I ordered a pair of speaker binding posts and while I got a pairs of speaker binding posts they were two different types. Would 'work' but look like crap on a 'stereo' amplifier. They also say their knobs "Suits 1/4" Shafts." Well, none of the aluminum ones I got do. They're 6mm and Futurlec still has the wrong description even after I notified them, more than once, of the problem. They'll work on *their* pots, because those are 6mm (T18 knurled shaft) too, but they will not go on a 1/4" shaft. One of the most irritating issues was an astronomically late, even by Futurlec standards, order and when I contacted them it turned out the entire order was being held for one part on backorder even though the online order status I had been checking said "shipped." Worse yet, they seemed completely oblivious as to why I might consider that a problem. I haven't had a problem with semiconductors, resistors, and caps, and still occasionally use them but not for things I 'need', and on time, and 'right'. Thanks for the warning...the resistors seem to be a fair price. Yeah, they are. I usually get metal film and it turns out that Mouser has Vishay/Dale 1/4 watt 1% metal film at .02 in singles, which matches their 10 lot price. And they don't carry higher wattage in metal film while Mouser does. You may have guessed I'm a Mouser fan. Helps a bit that I'm in the same state and delivery is lightning fast but that's not due solely to the distance. Mouser is lightning fast too and you can forget 'amending' an order because it'll be picked and on it's way to the shipping dock before you can get an email to them. I know because I tried. If I order by 5PM I'll get it the next day, late afternoon, by standard UPS ground. And Mouser's stock makes Futurlec look like a bit player. But you can't beat their pot prices anywhere, not even close. Same goes for the knobs, if you've got 6mm shafts. ..think they are ordering from China and then shipping? Sure feels like it but I don't know. They say "We are a large stockist and supplier of electronic components throughout the world. We carry a large stock and range of components ready for immediate delivery. " But then, in the next sentence, say "We are centrally located near our suppliers in the Asian region, enabling us to fulfil your orders quickly and at reduced prices." While giving a New York address for US and North America. But their web site trace routes to Australia. I ordered some prescription sunglasses from some net place like $13 glasses or some such place and they got to me about 4 weeks later from China. They were sort of out of focus but my eyes adjusted okay. The case smelled like benezene fumes or something...had to put it on the back porch open for a week or so...but now they are working although the lens has a spot rubbed on it form the plastic eyepiece rubbing on it closed in the case...anyway...back to topic I like Mouser also. I need to go find them, so I can see about stopping by when I'm in the city. I am going to Ft. Worth today so if I get a chance, I might just exit at Mansfield and see where they are. That is a smallish suburb town..or used to be smaller... From my location, I can order one day early and get it in the mail the next day (with no back orders).The only thing I hate about Mouser is their web site is geared to engineers, not hobbist although they started as a hobby business...maybe they need two of them That's interesting. I don't have any complaints about 'engineer vs hobby' but maybe that's because we're ordering different things. That and I'm an engineer. What would make it more 'hobby' oriented? ...and sometimes searchs turn up no results but the catalog lists parts..search engine is to picky maybe... Hmm. My complaint with the search engine is exactly the opposite: often pulls up too much. But it's rather simple to narrow things down so it's not a big deal. Give me an example of a part it failed to find. The 'surprise' for me is they carry parts that aren't in the catalog. easier search and order interface for end users not familiar with engineering terms and part numbers, ect...sometimes you can type in a generic term like 1% resistors and get nothing back in the voltage range we use but get into the catalog and there it is. Some times you can enter the same thing and get different results - like Google..and as we all know, that is sort of the definition of insanity - trying the same thing expecting different results... |
#25
Posted to alt.guitar.amps,rec.audio.tubes
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18 mini plexi pwr supply ripple / headache ..
On Mon, 28 Jul 2008 14:42:15 -0500, flipper wrote:
On Mon, 28 Jul 2008 11:31:47 -0500, JP wrote: On Fri, 25 Jul 2008 03:46:26 -0500, flipper wrote: On Thu, 24 Jul 2008 09:17:31 -0500, JP wrote: On Thu, 24 Jul 2008 00:27:02 -0500, flipper wrote: On Wed, 23 Jul 2008 16:08:01 -0400, "Phil S." wrote: "JP" wrote in message newstie84dtk8shr0c5pa4tv5e4iq7u48t814@4ax. com... On Wed, 23 Jul 2008 02:16:19 -0500, flipper wrote: Futurlec Good prices though... Yikes! Dirt cheap! As long as you're not picky, it's time to stock up. Since people seem to have discovered them from my post I feel obligated to make a few comments. They do have good prices on some things, although on others I find Mouser is just as good if not cheaper, but they also seem to be rather.. uh.. lackadaisical and you don't always get what you think you ordered. The problem seems to crop up more with connectors. Like, I ordered switched mono phone jacks and got non switched mono phone jacks. They did make good, by refunding the price, but, by then, I was row boat from China late on the project and didn't have the switched phone jacks I needed. I ended up buying from Mouser because I couldn't find out if they just picked the wrong part, or put the wrong part in the bin, or the description was wrong. Great price, though... for the wrong part. Another time I ordered a pair of speaker binding posts and while I got a pairs of speaker binding posts they were two different types. Would 'work' but look like crap on a 'stereo' amplifier. They also say their knobs "Suits 1/4" Shafts." Well, none of the aluminum ones I got do. They're 6mm and Futurlec still has the wrong description even after I notified them, more than once, of the problem. They'll work on *their* pots, because those are 6mm (T18 knurled shaft) too, but they will not go on a 1/4" shaft. One of the most irritating issues was an astronomically late, even by Futurlec standards, order and when I contacted them it turned out the entire order was being held for one part on backorder even though the online order status I had been checking said "shipped." Worse yet, they seemed completely oblivious as to why I might consider that a problem. I haven't had a problem with semiconductors, resistors, and caps, and still occasionally use them but not for things I 'need', and on time, and 'right'. Thanks for the warning...the resistors seem to be a fair price. Yeah, they are. I usually get metal film and it turns out that Mouser has Vishay/Dale 1/4 watt 1% metal film at .02 in singles, which matches their 10 lot price. And they don't carry higher wattage in metal film while Mouser does. You may have guessed I'm a Mouser fan. Helps a bit that I'm in the same state and delivery is lightning fast but that's not due solely to the distance. Mouser is lightning fast too and you can forget 'amending' an order because it'll be picked and on it's way to the shipping dock before you can get an email to them. I know because I tried. If I order by 5PM I'll get it the next day, late afternoon, by standard UPS ground. And Mouser's stock makes Futurlec look like a bit player. But you can't beat their pot prices anywhere, not even close. Same goes for the knobs, if you've got 6mm shafts. ..think they are ordering from China and then shipping? Sure feels like it but I don't know. They say "We are a large stockist and supplier of electronic components throughout the world. We carry a large stock and range of components ready for immediate delivery. " But then, in the next sentence, say "We are centrally located near our suppliers in the Asian region, enabling us to fulfil your orders quickly and at reduced prices." While giving a New York address for US and North America. But their web site trace routes to Australia. I ordered some prescription sunglasses from some net place like $13 glasses or some such place and they got to me about 4 weeks later from China. They were sort of out of focus but my eyes adjusted okay. The case smelled like benezene fumes or something...had to put it on the back porch open for a week or so...but now they are working although the lens has a spot rubbed on it form the plastic eyepiece rubbing on it closed in the case...anyway...back to topic I like Mouser also. I need to go find them, so I can see about stopping by when I'm in the city. I am going to Ft. Worth today so if I get a chance, I might just exit at Mansfield and see where they are. That is a smallish suburb town..or used to be smaller... From my location, I can order one day early and get it in the mail the next day (with no back orders).The only thing I hate about Mouser is their web site is geared to engineers, not hobbist although they started as a hobby business...maybe they need two of them That's interesting. I don't have any complaints about 'engineer vs hobby' but maybe that's because we're ordering different things. That and I'm an engineer. What would make it more 'hobby' oriented? ...and sometimes searchs turn up no results but the catalog lists parts..search engine is to picky maybe... Hmm. My complaint with the search engine is exactly the opposite: often pulls up too much. But it's rather simple to narrow things down so it's not a big deal. Give me an example of a part it failed to find. The 'surprise' for me is they carry parts that aren't in the catalog. Like I remember one..lol...next time I use it and it happens, I will document it... |
#26
Posted to alt.guitar.amps,rec.audio.tubes
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18 mini plexi pwr supply ripple / headache ..
On Mon, 28 Jul 2008 17:40:49 -0500, flipper wrote:
On Mon, 28 Jul 2008 17:22:30 -0500, JP wrote: On Mon, 28 Jul 2008 14:42:15 -0500, flipper wrote: On Mon, 28 Jul 2008 11:31:47 -0500, JP wrote: On Fri, 25 Jul 2008 03:46:26 -0500, flipper wrote: On Thu, 24 Jul 2008 09:17:31 -0500, JP wrote: On Thu, 24 Jul 2008 00:27:02 -0500, flipper wrote: On Wed, 23 Jul 2008 16:08:01 -0400, "Phil S." wrote: "JP" wrote in message newstie84dtk8shr0c5pa4tv5e4iq7u48t814@4a x.com... On Wed, 23 Jul 2008 02:16:19 -0500, flipper wrote: Futurlec Good prices though... Yikes! Dirt cheap! As long as you're not picky, it's time to stock up. Since people seem to have discovered them from my post I feel obligated to make a few comments. They do have good prices on some things, although on others I find Mouser is just as good if not cheaper, but they also seem to be rather.. uh.. lackadaisical and you don't always get what you think you ordered. The problem seems to crop up more with connectors. Like, I ordered switched mono phone jacks and got non switched mono phone jacks. They did make good, by refunding the price, but, by then, I was row boat from China late on the project and didn't have the switched phone jacks I needed. I ended up buying from Mouser because I couldn't find out if they just picked the wrong part, or put the wrong part in the bin, or the description was wrong. Great price, though... for the wrong part. Another time I ordered a pair of speaker binding posts and while I got a pairs of speaker binding posts they were two different types. Would 'work' but look like crap on a 'stereo' amplifier. They also say their knobs "Suits 1/4" Shafts." Well, none of the aluminum ones I got do. They're 6mm and Futurlec still has the wrong description even after I notified them, more than once, of the problem. They'll work on *their* pots, because those are 6mm (T18 knurled shaft) too, but they will not go on a 1/4" shaft. One of the most irritating issues was an astronomically late, even by Futurlec standards, order and when I contacted them it turned out the entire order was being held for one part on backorder even though the online order status I had been checking said "shipped." Worse yet, they seemed completely oblivious as to why I might consider that a problem. I haven't had a problem with semiconductors, resistors, and caps, and still occasionally use them but not for things I 'need', and on time, and 'right'. Thanks for the warning...the resistors seem to be a fair price. Yeah, they are. I usually get metal film and it turns out that Mouser has Vishay/Dale 1/4 watt 1% metal film at .02 in singles, which matches their 10 lot price. And they don't carry higher wattage in metal film while Mouser does. You may have guessed I'm a Mouser fan. Helps a bit that I'm in the same state and delivery is lightning fast but that's not due solely to the distance. Mouser is lightning fast too and you can forget 'amending' an order because it'll be picked and on it's way to the shipping dock before you can get an email to them. I know because I tried. If I order by 5PM I'll get it the next day, late afternoon, by standard UPS ground. And Mouser's stock makes Futurlec look like a bit player. But you can't beat their pot prices anywhere, not even close. Same goes for the knobs, if you've got 6mm shafts. ..think they are ordering from China and then shipping? Sure feels like it but I don't know. They say "We are a large stockist and supplier of electronic components throughout the world. We carry a large stock and range of components ready for immediate delivery. " But then, in the next sentence, say "We are centrally located near our suppliers in the Asian region, enabling us to fulfil your orders quickly and at reduced prices." While giving a New York address for US and North America. But their web site trace routes to Australia. I ordered some prescription sunglasses from some net place like $13 glasses or some such place and they got to me about 4 weeks later from China. They were sort of out of focus but my eyes adjusted okay. The case smelled like benezene fumes or something...had to put it on the back porch open for a week or so...but now they are working although the lens has a spot rubbed on it form the plastic eyepiece rubbing on it closed in the case...anyway...back to topic I like Mouser also. I need to go find them, so I can see about stopping by when I'm in the city. I am going to Ft. Worth today so if I get a chance, I might just exit at Mansfield and see where they are. That is a smallish suburb town..or used to be smaller... From my location, I can order one day early and get it in the mail the next day (with no back orders).The only thing I hate about Mouser is their web site is geared to engineers, not hobbist although they started as a hobby business...maybe they need two of them That's interesting. I don't have any complaints about 'engineer vs hobby' but maybe that's because we're ordering different things. That and I'm an engineer. What would make it more 'hobby' oriented? ...and sometimes searchs turn up no results but the catalog lists parts..search engine is to picky maybe... Hmm. My complaint with the search engine is exactly the opposite: often pulls up too much. But it's rather simple to narrow things down so it's not a big deal. Give me an example of a part it failed to find. The 'surprise' for me is they carry parts that aren't in the catalog. easier search and order interface for end users not familiar with engineering terms and part numbers, ect...sometimes you can type in a generic term like 1% resistors and get nothing back in the voltage range we use but get into the catalog and there it is. Hmm. Are you interpreting a page that looks rather like a 'table of contents', or 'category list', as getting nothing back? That's what you get when there are a huge number of results spanning multiple categories. Some times you can enter the same thing and get different results - like Google..and as we all know, that is sort of the definition of insanity - trying the same thing expecting different results... Hehe. Yes, I like that saying too but like a lot of them it's not quite true. I mean, if they add new devices to their catalog/web site then the next search won't give the same results as the first one... without being 'insane' And, of course, since there are millions upon millions of web sites Google tries to 'learn' and 'adapt' to your use patterns so you, hopefully, get better results... and that's not quite 'insane' either Okay! |
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