Home |
Search |
Today's Posts |
#1
Posted to rec.audio.pro
|
|||
|
|||
Urei 539 Equalizer fader/slider question
I seem to recall reading somewhere that there were batches of Urei 539
EQ's with white plastic sliders and some with black plastic sliders and that one version was far more problematic than the other (with faders either getting very sticky or scratchy rather quickly). I searched the Google archives for r.a.p. and couldn't find any mention of this so perhaps I read or heard it elsewhere. Does anyone recall anything of the sort? |
#2
Posted to rec.audio.pro
|
|||
|
|||
Urei 539 Equalizer fader/slider question
thepaulthomas wrote:
I seem to recall reading somewhere that there were batches of Urei 539 EQ's with white plastic sliders and some with black plastic sliders and that one version was far more problematic than the other (with faders either getting very sticky or scratchy rather quickly). I searched the Google archives for r.a.p. and couldn't find any mention of this so perhaps I read or heard it elsewhere. Does anyone recall anything of the sort? I do not recall anything like that. However, I occasionally work in a place that has a 539 with black plastic sliders and the faders are very very sticky. One of these days I'll take them apart and regrease them but the Orban 672s are higher on the list for that. --scott -- "C'est un Nagra. C'est suisse, et tres, tres precis." |
#3
Posted to rec.audio.pro
|
|||
|
|||
Urei 539 Equalizer fader/slider question
"Scott Dorsey" wrote in message ... thepaulthomas wrote: I seem to recall reading somewhere that there were batches of Urei 539 EQ's with white plastic sliders and some with black plastic sliders and that one version was far more problematic than the other (with faders either getting very sticky or scratchy rather quickly). I searched the Google archives for r.a.p. and couldn't find any mention of this so perhaps I read or heard it elsewhere. Does anyone recall anything of the sort? I do not recall anything like that. However, I occasionally work in a place that has a 539 with black plastic sliders and the faders are very very sticky. One of these days I'll take them apart and regrease them but the Orban 672s are higher on the list for that. --scott -- "C'est un Nagra. C'est suisse, et tres, tres precis." I worked in a place (Funky Junk) that saw quite a few Urei EQ's per annum, and they ALL had gummed up faders, presumably because they were **** faders to start with. I haven't seen this level of consistancy of crap faders anywhere else, my mind has always been boggled by this phenomenon. Any explanations? How did they get away with it? Gareth. |
#4
Posted to rec.audio.pro
|
|||
|
|||
Urei 539 Equalizer fader/slider question
On Dec 13, 6:18*am, (Scott Dorsey) wrote:
thepaulthomas wrote: I seem to recall reading somewhere that there were batches of Urei 539 EQ's with white plastic sliders and some with black plastic sliders and that one version was far more problematic than the other (with faders either getting very sticky or scratchy rather quickly). I searched the Google archives for r.a.p. and couldn't find any mention of this so perhaps I read or heard it elsewhere. Does anyone recall anything of the sort? I do not recall anything like that. *However, I occasionally work in a place that has a 539 with black plastic sliders and the faders are very very sticky. *One of these days I'll take them apart and regrease them but the Orban 672s are higher on the list for that. --scott -- "C'est un Nagra. *C'est suisse, et tres, tres precis." What do you recommend using to regrease the rails? I seem to recall you once mentioning oil for watches. If that's correct, is there anything commonly available from a hardware store? |
#5
Posted to rec.audio.pro
|
|||
|
|||
Urei 539 Equalizer fader/slider question
thepaulthomas wrote:
On Dec 13, 6:18=A0am, (Scott Dorsey) wrote: thepaulthomas wrote: I seem to recall reading somewhere that there were batches of Urei 539 EQ's with white plastic sliders and some with black plastic sliders and that one version was far more problematic than the other (with faders either getting very sticky or scratchy rather quickly). I searched the Google archives for r.a.p. and couldn't find any mention of this so perhaps I read or heard it elsewhere. Does anyone recall anything of the sort? I do not recall anything like that. =A0However, I occasionally work in a place that has a 539 with black plastic sliders and the faders are very very sticky. =A0One of these days I'll take them apart and regrease them but the Orban 672s are higher on the list for that. What do you recommend using to regrease the rails? I seem to recall you once mentioning oil for watches. If that's correct, is there anything commonly available from a hardware store? Watch oil is about the thinnest oil there is. Really too thin for that kind of stuff. Regular sliders like P&G types have actual rails, which can be cleaned and lubricated (and I recommend Zoom Spout oil which is actually rebadged turbine oil, Castrol OC-11 or equivalent.... Ace Hardware carries it). The problem is that the sliders on these equalizers aren't built like that.... they are metal cases with a sliding element that moves back and forth using the top of the case as a guide. There is a thick layer of grease right under the top of the case to make the movement smooth, and if you squirt Cramolin in there it just cleans the grease out and makes the problem worse. I have taken these things apart and put white lithium grease in them and they were much better.... there is probably some way to do this without disassembling them and desoldering but I haven't found it yet. These things were never designed to be repaired. --scott -- "C'est un Nagra. C'est suisse, et tres, tres precis." |
#6
Posted to rec.audio.pro
|
|||
|
|||
Urei 539 Equalizer fader/slider question
On Dec 16, 7:42*am, (Scott Dorsey) wrote:
thepaulthomas wrote: On Dec 13, 6:18=A0am, (Scott Dorsey) wrote: thepaulthomas wrote: I seem to recall reading somewhere that there were batches ofUrei539 EQ's with white plastic sliders and some with black plastic sliders and that one version was far more problematic than the other (with faders either getting very sticky or scratchy rather quickly). I searched the Google archives for r.a.p. and couldn't find any mention of this so perhaps I read or heard it elsewhere. Does anyone recall anything of the sort? I do not recall anything like that. =A0However, I occasionally work in a place that has a539with black plastic sliders and the faders are very very sticky. =A0One of these days I'll take them apart and regrease them but the Orban 672s are higher on the list for that. What do you recommend using to regrease the rails? I seem to recall you once mentioning oil for watches. If that's correct, is there anything commonly available from a hardware store? Watch oil is about the thinnest oil there is. *Really too thin for that kind of stuff. Regular sliders like P&G types have actual rails, which can be cleaned and lubricated (and I recommend Zoom Spout oil which is actually rebadged turbine oil, Castrol OC-11 or equivalent.... Ace Hardware carries it). The problem is that the sliders on these equalizers aren't built like that.... they are metal cases with a sliding element that moves back and forth using the top of the case as a guide. *There is a thick layer of grease right under the top of the case to make the movement smooth, and if you squirt Cramolin in there it just cleans the grease out and makes the problem worse. *I have taken these things apart and put white lithium grease in them and they were much better.... there is probably some way to do this without disassembling them and desoldering but I haven't found it yet. *These things were never designed to be repaired. --scott -- "C'est un Nagra. *C'est suisse, et tres, tres precis."- Hide quoted text - - Show quoted text - I posted this back in August of 2005 regard a similar Urei equalizer where I replaced the faders. Re-post: ------------------------------------------------------------------------------------------------- Hi all, The UREI 535 is a dual-channel, 10-band EQ that can be found relatively cheaply, but may require some service to get them working properly again. I recently purchased one for $50, but the faders were horrible. I tried cleaning them, but that did not improve them, so I decided to replace them. I found linear sliders from Mouser (312-9201-20K) and associated knobs (450-0154) that worked for me. The faders are certainly not a direct replacement and required a little adjustment to get them to work. They are not PCB-mount style and their shafts are 5mm shorter than the original part, so I created leads with 18 ga. solid-core wire and mounted them on the PCB such that their shaft heights were the same as the originals'. These new faders also have metal shafts as apposed to the orignials' plastic ones. So, I believe the final quality is better than that of the original. I just thought I'd let people know in case they have an old UREI 535 that they want to put back into service. I know that 20K replacement sliders are hard to find. Just and FYI. Mike Putrino |
Reply |
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Forum | |||
Slider slot - how ? | Tech | |||
Does Audacity have a slider-bar ? | Tech | |||
Urei LA4 question | Pro Audio | |||
Urei LA4 Question | Tech | |||
Urei LA4 question | General |