[sdiy] Preferred caps for polysynth recap ?

[Pete Hartman]

A couple relevant questions:

Is this your own synth, or one you're working on for someone else?

Do you have any indications that the electros are failing?

I agree with Gordon that a blanket replacement of parts has a high risk
associated with it.  If we were talking tantalum caps, I'd lean more toward
replacing them at this age, but if it's your own synth?  I wouldn't replace
much else that wasn't failing already.

Pete





On Sun, Apr 10, 2016 at 12:57 PM, Gil W. <gil_we at yahoo.com> wrote:

> I'm not sure why you're saying that. Considering those caps are about 35
> years old, I think it's quite important to refresh with new ones.
>
> I "works" and will work also after a recap.
>
>
> --------------------------------------------
> On Sun, 4/10/16, Gordonjcp <gordonjcp at gjcp.net> wrote:
>
>  Subject: Re: [sdiy] Preferred caps for polysynth recap ?
>  To: synth-diy at dropmix.xs4all.nl
>  Date: Sunday, April 10, 2016, 7:50 PM
>
>  On Sun, Apr 10, 2016 at
>  12:52:45PM +0000, Gil W. wrote:
>  > What
>  electrolyte caps would you recommend when recapping voice
>  circuits in vintage polysynth ?
>  >
>
>  If it's working, I'd
>  leave it alone.  Capacitors just don't fail as much as
>  people think they do.  If you fanny about with the insides,
>  you have a greater risk of damaging something than improving
>  it.
>
>  > Should low ESR be
>  preferred sound-wise ?
>
>  Won't make the tiniest bit of
>  difference.
>
>  --
>  Gordonjcp MM0YEQ
>
>  _______________________________________________
>  Synth-diy mailing list
>  Synth-diy at dropmix.xs4all.nl
>  http://dropmix.xs4all.nl/mailman/listinfo/synth-diy
> _______________________________________________
> Synth-diy mailing list
> Synth-diy at dropmix.xs4all.nl
> http://dropmix.xs4all.nl/mailman/listinfo/synth-diy
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://synth-diy.org/pipermail/synth-diy/attachments/20160410/882177a6/attachment.htm>