Discussion about the Korg PolySix synthesizer

Hi Steph

You may replace electrolytic capactitors and tantalum capacitors which 
are between supply voltages and ground. Especially the electrolytics in 
the powersupply can be replaced. I don't remember whether there are 
tantalum caps in the polysix. Those from the 80s a prone do shorten. So 
if there are any, you may do so.

But there is no need to replace electrolytic caps which transport 
audiosignals. This kind of recapping in synths is a myth that comes from 
the (necessary) replacement task while the restauration of old (very) 
large studio consoles, which never were switched off, and which could 
have continuously temperatures over 60 degrees celsius inside. If you 
run a capacitor for 30 or 40 years under such conditions, then it will 
dry out. But I doubt that any Polysix (or any other synth) ever was 
switched on continuously for 30 years while suffering such temperatures 
at the same time.

Conclusion: Powersupply yes, tantalums yes, the rest no!

Florian