I see - makes sense. Eric's designs didn't have a rating otherwise I'd have gone by that. Even if they were there, knowing 'why' is good too.
A follow up capacitor question: the big electrolytics I picked up for my power supply, as per the design on your site Ken, from physical inspection at least seem recent enough (ranging from ~5-30 years old), though should I bother reforming them? Could I do that while burning in the fully built supply, slowly raising the input voltage to 120V?
My thanks sir!
_Kyle
A follow up capacitor question: the big electrolytics I picked up for my power supply, as per the design on your site Ken, from physical inspection at least seem recent enough (ranging from ~5-30 years old), though should I bother reforming them? Could I do that while burning in the fully built supply, slowly raising the input voltage to 120V?
My thanks sir!
_Kyle
--- On Fri, 6/18/10, sasami@... <sasami@...> wrote:
From: sasami@... <sasami@...>
Subject: Re: [tubesynthdiy] Capacitor Voltage Ratings
To: tubesynthdiy@yahoogroups.com
Date: Friday, June 18, 2010, 4:54 PMThe "greater than the DC voltage it will see, plus at least 20% spare" would
be the first rule. Be aware that a capacitor can see more than the power
rail voltage in some circumstances (i.e charged in one direction, then
having the opposite voltage applied it). Double the DC voltage is good. The
value specified on the circuit diagram (if present) is ideal.
Ken
__________________________________________________________
Ken Stone sasami@... otherunicorn@...
Modular Synth PCBs for sale <http://www.cgs.synth.net/>
Australian Miniature Horses & Ponies <http://www.blaze.net.au/~sasami/>