Vintage Synth Repair

At 16:40 Uhr -0400 08.05.2008, Roy J. Tellason wrote:
>> The german wikipedia states that older tantalum caps are sensitive to
>> low-ohm switching and could easily fail under such circumstances. Don't
>> know if this could be a reason.
>
> I don't know, though I do see many references to them being a problem in
> older equipment, Tektronix scopes being one of them. Most of the time it's
> their sensitivity to overvoltage that's described as being the problem.

Well, the power supply decoupling caps in the various ARP synths are rated
35V and put across +15V and -15V to ground; and I've seen them fail
regularly (the current Omni being an example); I've also had this problem
with synths from other manufacturers and with effects boxes.


-- 
Malte Rogacki gacki@...
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"Don't forget to TURN ON THE SYNTHESIZER. Often this is the reason why you
 get no sound out of it." (ARP 2600 Owner's Manual)
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