Vintage Synth Repair

Hi..yep they still can go bad over time even with no
use. I've bought NOS 20 year old stuff that has had
bad caps. If the supply in new then I wouldn't worry.

Phil.



--- nik_a777 <nik_a777@...> wrote:

> Do these caps wear out if the synth is not used? I
> have a synth that 
> hasn't been played for 20+ years, just wondering if
> that would 
> benefit from replacements. (It has a new power
> supply).--- In 
> vintagesynthrepair@yahoogroups.com, "gil_we"
> <gil_we@...> wrote:
> >
> > Thanks,
> > 
> > I'm referring to electrolytics only.
> > 
> > 
> > --- In vintagesynthrepair@yahoogroups.com,
> "Antoine Desch\ufffdnes"
> > <antdes45@> wrote:
> > >
> > > In power supplies, I'd recommend Nichicon HE/UHE
> caps, their MTBF 
> is
> > > much longer than most capacitors. In the signal
> path, people 
> recommend
> > > poly#### film capacitors to replace
> electrolytics, since they're
> > > non-polarized and have always good
> characteristics for audio. You
> > > simply eliminate the need to look through tons
> of different types 
> of
> > > capactiors, there are no bad sounding film caps.
> There are two 
> common
> > > types, polypropylene and polyester.
> Polypropylenes are said to 
> sound
> > > better, but they start failing after 20-25
> years. Polyesters don't
> > > have this problem.
> > > 
> > > 2008/4/13, gil_we <gil_we@>:
> > > > I've been so far done recapping of mainly
> power supply, in 
> analog
> > > >  synthesizers. I'm no willing to start doing a
> full recap for a 
> few
> > > >  synths, and need to pick up the best make of
> caps for that 
> purpose.
> > > >
> > > >  Most important is, of course, sound ! I had a
> bad experience
> > recapping
> > > >  an old stereo amplifier with modern makes of
> caps, and noticed 
> some
> > > >  change in sound, in a bad way (it sounded
> thinner once I 
> recapped).
> > > >
> > > >  Any suggestions ?
> > > >
> > > >
> > > >  ------------------------------------
> > > >
> > > >  Yahoo! Groups Links
> > > >
> > > >
> > > >
> > > >
> > > 
> > > 
> > > -- 
> > > Antoine Desch\ufffdnes
> > >
> >
> 
> 
> 



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