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For Andre Jute - Which Transformers for KISS 300B
Hello Andre-
Which transformers should I order for the KISS 300B amplifier? Thanks for responding, Gray |
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wrote:
Hello Andre- Which transformers should I order for the KISS 300B amplifier? Thanks for responding, Gray What are you talking about, Gray? You have *all* those transformers already, except if you cheaped out when you chose which of my Modular Series to build. Count the transformers inside your amp. If you have either three or four big transformers, you have enough power and outputs. If you have two medium-sized transformers, you have enough double chokes. If you have only one medium-sized transformer, you will need to buy another double choke because the choke-input filter is a critical part of the design. If you really treated yourself when you chose which of my Modular Series to build there will also be four small transformers, interstages, but they are not used in either the 'standard good' or 'ultrafi' versions of the KISS 300B. The only justification for breaking up a Modular Series amp to join the KISS project is if you're going all the way with me to the Ultrafi version. HTH. Andre Jute |
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Jon Yaeger wrote: in article , at wrote on 3/23/05 11:13 PM: Hello Andre- Which transformers should I order for the KISS 300B amplifier? Thanks for responding, Gray Try this one: http://www.pdtpower.com/index.asp?src=gdt ;-) The company manager said he'd be delighted to wind one except that he doesn't know how to do air gapped ones for SET. Patrick Turner. |
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#5
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wrote in message oups.com... wrote: Hello Andre- Which transformers should I order for the KISS 300B amplifier? Thanks for responding, Gray What are you talking about, Gray? You have *all* those transformers already, except if you cheaped out when you chose which of my Modular Series to build. Count the transformers inside your amp. If you have either three or four big transformers, you have enough power and outputs. If you have two medium-sized transformers, you have enough double chokes. If you have only one medium-sized transformer, you will need to buy another double choke because the choke-input filter is a critical part of the design. If you really treated yourself when you chose which of my Modular Series to build there will also be four small transformers, interstages, but they are not used in either the 'standard good' or 'ultrafi' versions of the KISS 300B. The only justification for breaking up a Modular Series amp to join the KISS project is if you're going all the way with me to the Ultrafi version. HTH. Andre Jute I think that's all pretty clear, Andre .. Thanks for explaining it to us .... I have small ones and large ones .. Are two small ones as good as a large one ? Am I best wiring them in series or parallel ? I could get half the impedance , twice the DC resistance or 6 times the bull**** .. Is amplifier design related to how many transformers you have ? Is .. nine .. a good number ? I have hordes of transformers, here !!! .. Lets go for it !! Have you seen my latest design ?? The only active device is, .. me.. turning it on .. 42 transformers ........ Phase shift ? .. you drop the needle on the record and come back twenty minutes later to see if the misic has arrived yet .. Get it wrong and the music could turn up before you turned it on .. cheers jim |
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#7
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magnequest?
-- Alan Gallacher Born to Tinker! wrote in message oups.com... Hello Andre- Which transformers should I order for the KISS 300B amplifier? Thanks for responding, Gray |
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#9
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in article , Anumber1 at
wrote on 3/24/05 10:40 AM: magnequest? ROFLMAO - high fives for that one! - J |
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#10
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It is a relevant question, Mr Jute. If the transformers are not in
stock it could take a while before we take delivery. You've had your little joke with Mr Glass. But I built your Triple Threat and I can't use those transformers in the single ended KISS amp. I'd like to be ready to go the moment you publish the schematic and the layout. A transformer list would really be appreciated. Frank B wrote: wrote: Hello Andre- Which transformers should I order for the KISS 300B amplifier? Thanks for responding, Gray What are you talking about, Gray? You have *all* those transformers already, except if you cheaped out when you chose which of my Modular Series to build. Count the transformers inside your amp. If you have either three or four big transformers, you have enough power and outputs. If you have two medium-sized transformers, you have enough double chokes. If you have only one medium-sized transformer, you will need to buy another double choke because the choke-input filter is a critical part of the design. If you really treated yourself when you chose which of my Modular Series to build there will also be four small transformers, interstages, but they are not used in either the 'standard good' or 'ultrafi' versions of the KISS 300B. The only justification for breaking up a Modular Series amp to join the KISS project is if you're going all the way with me to the Ultrafi version. HTH. Andre Jute |
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#11
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Sorry, Frank. I was merely answering Gray's specific question: Gray
doesn't have to order transformers, he just reuses those from one of my amps he built before. I'll give you a list because you guys insist but it really isn't smart to start ordering parts before you have all the information before you. The problem is that the optional and alternative parts can run up quite a bill for stuff you may not use (some dealers charge five dollars for a Kiwame resistor...), and of course if you have to make two or three orders rather than one, the minimum carriage charges can mount up alarmingly. For chrisesake, stop with this Mr Jute nonsense. My name is Andre. I'm publishing the list you ask for separately as THE KISS 300B ULTRAFI MAJOR PARTS LIST. Andre Jute wrote: It is a relevant question, Mr Jute. If the transformers are not in stock it could take a while before we take delivery. You've had your little joke with Mr Glass. But I built your Triple Threat and I can't use those transformers in the single ended KISS amp. I'd like to be ready to go the moment you publish the schematic and the layout. A transformer list would really be appreciated. Frank B wrote: wrote: Hello Andre- Which transformers should I order for the KISS 300B amplifier? Thanks for responding, Gray What are you talking about, Gray? You have *all* those transformers already, except if you cheaped out when you chose which of my Modular Series to build. Count the transformers inside your amp. If you have either three or four big transformers, you have enough power and outputs. If you have two medium-sized transformers, you have enough double chokes. If you have only one medium-sized transformer, you will need to buy another double choke because the choke-input filter is a critical part of the design. If you really treated yourself when you chose which of my Modular Series to build there will also be four small transformers, interstages, but they are not used in either the 'standard good' or 'ultrafi' versions of the KISS 300B. The only justification for breaking up a Modular Series amp to join the KISS project is if you're going all the way with me to the Ultrafi version. HTH. Andre Jute |
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#12
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THE KISS 300B ULTRAFI MAJOR PARTS LIST
THIS LIST IS PRELIMINARY AND INCLUDES OPTIONAL PARTS YOU MAY CHOOSE NOT TO USE WHEN THE DESCRIPTION IS COMPLETE AND THE SCHEMATIC AND LAYOUT IS PUBLISHED. Lundahl transformers 1x LL1651 Power Transformer 250-0-250 4x 6.3V 2x LL1638 Double Wound Choke 10H 200mA 2x LL1623SE 90mA Output Transformer, multiple primary impedances, multiple output arrangements (Lundahl has cheaper transformers without the versatility but I have never used them; those above are cheap enough and work perfectly.) Most of the places who sell these transformers will also supply quality caps: 3x 51uF 630V Solen polyprop cannisters (47uF is good enough) for power filter 2x 51uF 160V (or up to 250V) for 300B cathode resistor bypass (47uF is good enough) 2x 1000uF 6.3V for optional 417A cathode bypass (you may choose battery bias instead) They probably also sell tubes and sockets and quality resistors: 2x 300B 2x 417A 1x GZ37 Ceramic Sockets: 2x UX4 2x B9A 1x Octal Transistors 2x BY228 diodes or equivalent for Graetz bridge. Resistors 2x 1K 50W non-mductive wire-wound resistor for 300B bias Kiwame resistors, 2W (the smallest you can get) 2x 120R 2x 47K 20x 220R (optional, grid stoppers, depends how clean the airwaves are where you live) Kiwame resistors, 5W (the biggest you can get) 4x 100R (optional, humbusters, depends on your layout and wire dress) Also from the same suppliers 1x DACT 20K stereo ladder attenuator Fancy wire, if you believe in it. Most of these places sell silverplated teflon covered wire by the foot. I often use Cardas golden section multistrand but that can be tricky to tin in the larger sizes. The truth is that anything that will carry the current and survive the heat will do. Solid tinned copper 1000V 1.8 amp 70 degree C and better wire is available from most suppliers in a range of colours. A good general tube amp spec is UL 1015 of the correct voltage/current rating. The rest, switch, fuseholder and fuse, other resistors, etc , you can buy from any mailorder electronics house. I shall build mine on copper plate. The piece I have is 3mm thick by about 13in or 329mm by 1m wide (that's how you buy it, so many inches wide by one meter wide). Andre Jute |
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#13
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Anumber1 wrote: magnequest? -- Alan Gallacher Born to Tinker! 'Scuse me while I sick up. Andre Jute Not a fashion victim wrote in message oups.com... Hello Andre- Which transformers should I order for the KISS 300B amplifier? Thanks for responding, Gray |
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#14
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Jutey- Fruity.
Yves pointed out that you and your small cast of imaginary sycophants allegedly post through the same portal address. It would be a clever ruse, I suppose, if it weren't so transparent and amateurish. The implication that your supporters and admirers are the product of a fecund imagination is pretty sad . . . . I've noticed over the years that there are long stretches of silence between flurries of posting by you. Were you receiving the benefit of institutional care during those quiet times? |
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#15
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On 24 Mar 2005 11:11:45 -0800, "
wrote: THE KISS 300B ULTRAFI MAJOR PARTS LIST THIS LIST IS PRELIMINARY AND INCLUDES OPTIONAL PARTS YOU MAY CHOOSE NOT TO USE WHEN THE DESCRIPTION IS COMPLETE AND THE SCHEMATIC AND LAYOUT IS PUBLISHED. Lundahl transformers 1x LL1651 Power Transformer 250-0-250 4x 6.3V 2x LL1638 Double Wound Choke 10H 200mA 2x LL1623SE 90mA Output Transformer, multiple primary impedances, multiple output arrangements (Lundahl has cheaper transformers without the versatility but I have never used them; those above are cheap enough and work perfectly.) Most of the places who sell these transformers will also supply quality caps: 3x 51uF 630V Solen polyprop cannisters (47uF is good enough) for power filter 2x 51uF 160V (or up to 250V) for 300B cathode resistor bypass (47uF is good enough) 2x 1000uF 6.3V for optional 417A cathode bypass (you may choose battery bias instead) They probably also sell tubes and sockets and quality resistors: 2x 300B 2x 417A 1x GZ37 Ceramic Sockets: 2x UX4 2x B9A 1x Octal Transistors 2x BY228 diodes or equivalent for Graetz bridge. Resistors 2x 1K 50W non-mductive wire-wound resistor for 300B bias Kiwame resistors, 2W (the smallest you can get) 2x 120R 2x 47K 20x 220R (optional, grid stoppers, depends how clean the airwaves are where you live) Kiwame resistors, 5W (the biggest you can get) 4x 100R (optional, humbusters, depends on your layout and wire dress) Also from the same suppliers 1x DACT 20K stereo ladder attenuator Fancy wire, if you believe in it. Most of these places sell silverplated teflon covered wire by the foot. I often use Cardas golden section multistrand but that can be tricky to tin in the larger sizes. The truth is that anything that will carry the current and survive the heat will do. Solid tinned copper 1000V 1.8 amp 70 degree C and better wire is available from most suppliers in a range of colours. A good general tube amp spec is UL 1015 of the correct voltage/current rating. The rest, switch, fuseholder and fuse, other resistors, etc , you can buy from any mailorder electronics house. I shall build mine on copper plate. The piece I have is 3mm thick by about 13in or 329mm by 1m wide (that's how you buy it, so many inches wide by one meter wide). Andre Jute I *shall* build mine on copper plate? Thanks for confirming that KISS does not actually exist, but is simply a paper design. -- Stewart Pinkerton | Music is Art - Audio is Engineering |
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#16
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#17
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wrote:
Hello Andre- I built the No51 from your Modular Series with the Lundahl No1627 185mA for parallel 300B. After I wrote you asking which one to build and you told me the No49, I fell in love with a picture of stacked Quad ESL on your early netsite. If I still had those, I'd be listening to them, not writing to you. After a longer story than one of your novels I finally put together a good set but they needed more power than one 300B. The output transformers from No51 won't do for the KISS. But I shall in any event buy a full set of transformers because I don't want to break up my No51. It will go to the house on the Island together with the panels. The horns for the KISS will not bother Leila at all. Far from it. She will find their smaller size a relief in our apartment in the city. If yours will be for sale I will top any offer, otherwise I think I shall buy the Lowther items as those angles shown in the photographs at your Fiultra site are beyond my skill. I'll keep it in mind when I decide to sell those horns. Lowther is probably much cheaper than I am and you really should become familiar with the standard item before you try my hotrodded version. A rational fellow like you may be unpleasantly surprised at just how little extra you get for several multiples of the money. Alas, audio cannot claim exemption from the economic laws of marginality. However, it isn't as difficult by far as you think to build an exact copy of the Lowther factory Fidelio. I usually start with factory-sawn wood which I buy from a Lowther dealer in Germany. Building a standard set is just a glue job. That's it, no screws, nothing. I don't even use clamps because the wood is sawn perfectly square on all gluing edges and its own weight fixes it. http://members.lycos.co.uk/fiultra/K...20T91HWAF3.jpg It just takes a few days because you cannot place more than one panel at a time for fear of distubring one not yet fixed. I don't imagine the money matters to you but you can build a good Fidelio for two-fifths of the factory price, complete with genuine Lowther drivers but of course sans their fancy veneers or lustrious piano black (for which they charge the real value same as I do). For my 50th birthday I installed workshops in the apartment and also at our summer place. I can do reasonably square woodwork and metal work but your 1/8 inch copper plate is too ambitious. I'm going to use thinner ali and stiffen it with wood. Isn't that what you did in the prototype for the 417A amp that is the test for the KISS driver stage? Exactly. The KISS 300B proto is built on a Hammond "cover sheet" 10 x 17 inches. If you look at http://members.lycos.co.uk/fiultra/K...0T68MZ417A.jpg you can see it is a thin ali sheet painted with primer. I bolted the ali to a half-inch sheet of ply, then drilled the holes for the components blind into the ali, then took the ali away and enlarged the holes in the wood just enough not to interfere with the bolt heads. Then I bolted everything to the ali sheet and carefully slid the wood under the ali sheet as a stifferner and bolted it back on. The Hammond 10x17x4in box in the same photograph doesn't actually hold anything; it is just a safety cover. All the components are on the board. The tubes are on standoffs which are just bolts bolted to the ali with threaded standoffs spun on to the right height, washers to broaden the support base, the tube base, more washers to speread the load, a nut, a spring washer, a lock nut. You'd be surprised how sturdy such an assembly is. The 300B sockets, removed from the front of the plate where you can see holes for them and for bolting 50W resistors for the 300B bias (also on the layout under where input transformers are shown), are of the kind that has a metal locating ring on top and a flat bottom with the tags sticking out radially a quarter inch off the bottom; I didn't fancy having 300B standing on standoffs.... Having run the KISS 300B proto assembly for a bit, I determined that the driver section for various reasons was the only part requiring further testing, so I connected the 417A to the outputs and made a little potato amp, a booster amp if you want to be fancy, of the dirver section alone. It's a super little thing of one-third watt. I play it often even long after I finished the tests. In the final version the KISS 300B will be rebuilt on copper but I haven't yet finished that design. I fancy a sort of pagoda shape with the tubes inside, visible at two edges only, because I have no taste for wrecking three grand's worth of WE tubes by dropping something on them, so an open traditional plate on top of a box with tubes on top is out. I don't know where you got the idea which is clearly your subtext here, that I am going to work that copper plate myself. A local engineer will drill it for me and I'll get a jeweller to polish it before final assembly. Like you, I'm just about capable of nearly square woodword. I'll varnish the wood trim. [SNIP] I always said one day you'll be a public benefactor  Ho ho ho! Tell that to the sneering jeering scum in this thread. Andre Gray wrote: THE KISS 300B ULTRAFI MAJOR PARTS LIST THIS LIST IS PRELIMINARY AND INCLUDES OPTIONAL PARTS YOU MAY CHOOSE NOT TO USE WHEN THE DESCRIPTION IS COMPLETE AND THE SCHEMATIC AND LAYOUT IS PUBLISHED. Lundahl transformers 1x LL1651 Power Transformer 250-0-250 4x 6.3V 2x LL1638 Double Wound Choke 10H 200mA 2x LL1623SE 90mA Output Transformer, multiple primary impedances, multiple output arrangements (Lundahl has cheaper transformers without the versatility but I have never used them; those above are cheap enough and work perfectly.) Most of the places who sell these transformers will also supply quality caps: 3x 51uF 630V Solen polyprop cannisters (47uF is good enough) for power filter 2x 51uF 160V (or up to 250V) for 300B cathode resistor bypass (47uF is good enough) 2x 1000uF 6.3V for optional 417A cathode bypass (you may choose battery bias instead) They probably also sell tubes and sockets and quality resistors: 2x 300B 2x 417A 1x GZ37 Ceramic Sockets: 2x UX4 2x B9A 1x Octal Transistors 2x BY228 diodes or equivalent for Graetz bridge. Resistors 2x 1K 50W non-mductive wire-wound resistor for 300B bias Kiwame resistors, 2W (the smallest you can get) 2x 120R 2x 47K 20x 220R (optional, grid stoppers, depends how clean the airwaves are where you live) Kiwame resistors, 5W (the biggest you can get) 4x 100R (optional, humbusters, depends on your layout and wire dress) Also from the same suppliers 1x DACT 20K stereo ladder attenuator Fancy wire, if you believe in it. Most of these places sell silverplated teflon covered wire by the foot. I often use Cardas golden section multistrand but that can be tricky to tin in the larger sizes. The truth is that anything that will carry the current and survive the heat will do. Solid tinned copper 1000V 1.8 amp 70 degree C and better wire is available from most suppliers in a range of colours. A good general tube amp spec is UL 1015 of the correct voltage/current rating. The rest, switch, fuseholder and fuse, other resistors, etc , you can buy from any mailorder electronics house. I shall build mine on copper plate. The piece I have is 3mm thick by about 13in or 329mm by 1m wide (that's how you buy it, so many inches wide by one meter wide). Andre Jute |
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