[sdiy] Power Supply Trouble

[Scott]

It is old (used) and has not be recapped.  
I have a few power ones, of various sizes..  I was able to see AC ripple on the DC side of one of them, and so replaced the caps.  That fixed that issue. 

the one that is in my synth did not show AC on the DC side.  But, the caps are the first thing I thought of, too.  I guess I'll just order caps.  It definitely won't hurt to replace them.

If anyone has other ideas, please let me know.

-----Original Message-----
From: Tony Rolando [mailto:tony at makenoisemusic.com] 
Sent: Tuesday, March 31, 2009 12:31 PM
To: Scott
Cc: synth-diy at dropmix.xs4all.nl
Subject: Re: [sdiy] Power Supply Trouble

How old is it? Has it ever been re-capped?

Tony

Scott wrote:
> My power supply droops when my AC power fluctuates. (VCO's lower their tune, and LFO's/clocks slow down)  I have a regulated Power One 3 amp 15/0/-15 supply.  Shouldn't the regulated supply be able to handle ac power fluctuations?
> I haven't taken out the PS to start testing yet.  Is there anything obvious I should check for when I get started?
>
> Thanks!
>
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