Vintage Synth Repair

I basically went for the Power One approach. Ripped out the old 
unstable piece of junk in the 2600 and put in the Power One Linear 
and I haven't looked back.

I have the added bonus of having a 2600 PSU to throw at the wife when 
she gets out of order ;) (or does she throw it at me...)

Guv


--- In vintagesynthrepair@y..., Tom Moravansky <tom@s...> wrote:
> > > Back on track, one popular thing to do with old gear is to 
recap the
> > > power supply and other electrolytic caps.  Panasonic has 
> > > discontinued a lot of their good replacement caps (HF/HFS I 
> > > think).  What are people using now when they do a recap?
> > > -- 
> > > 
> >                              
> > This is high on my list of priorities
> > for my Arp 2600.   I can't decide if I 
> > should recap the PS or just go with
> > a Power-One Linear +/-15v .8A supply.
> > 
> > Does anybody have experience replacing
> > a PS in an Arp2600 altogther and if it 
> > is better or worse than rebuilding the 
> > original?
> > 
> 
> I recapped mine after a cap shorted on powerup.....
> 
> Make a note - if you smell something electrical, power down 
immediately.  :-)
> 
> If you replace the power supply, you have a few things to consider -
-
> form factor, heat dissipation, current draw.  You can put your DMM
> in-line with each voltage and see how much the 2600 draws (don't 
forget
> to test with speakers and spring reverb and everything else going at
> once), so that's relatively easy.  The Power One's tend to be 
mounted
> on a metal 'L' that is used for stability and heat dissipation.  I
> haven't looked at how to mount that in the 2600 and if it would be
> in the way of other stuff.  Also, which way to orient the 'L'?
> 
> I know with consoles, a beefier power supply tends to improve the 
sound,
> although I don't know how much difference it would make in a synth 
like the
> 2600.  Does the 'net folklore indicate that the 2600 PS is running 
at
> (or past) it's design limits?
> -- 
> 
> 
______________________________________________________________________
_
> Tom Moravansky                                    tom@s...