Discussion about the Korg PolySix synthesizer

A few day's later now.

After I played a bit more with the synth, I think the calibration stil can be improved.
Sometimes key's pressed at the same time, give some dis-resonance, but maybe that is the charm of a real analogic synth ;-)

I want to change the VR10, VR11 an VR15 for a precision trimpots, like these:
http://cgi.ebay.nl/10-x-100K-ohm-Precision-3296-Variable-Resistor-Trim-Pot-/300452503889?pt=LH_DefaultDomain_0&hash=item45f45d6151

From the schematic's of board KLM-366 (new production) they must have the following specs:
VR10 - 100k
VR11 - 2k2
VR15 - 4k7

The schema'tics are a little blury(?) so I'm not quite sure, if I read them correct.

Also I read about replacing the elco's on the oscillator board.
Would that be wise, to do in the same time? They look stil good.
And I guess they only ment the elco's in the oscillator part?

And a final question (at least for now) about the stretched tuning.
I got answer on what it is, but do I understand correct, that when tuning the synth this switch has to be in normal position?
The SM say's to switch it on, when tuning.
I'm a little bit confused in this.
When to use this stretched tuning then?

Als I found out that the longer the synth is turned on, the nicer he sounds.

(Before I start tuning, I leaf it on, for at least 1 hour)

--- In PolySix@yahoogroups.com, "sigma.draconis" <mreuvekamp@...> wrote:
>
> 
> 
> 
> Today finished the calibrating procedure, and everything was clear.
> The only little confusing part was that there was a reference to the VR1 on the KLM-396, because I had the new production board, I couldn't find it offcourse :-)
> Guessed it must be VR15 then.
> 
> But afterall I got all oscillators in 0,2 cent.
> Even the oscillator wich couldn't tune enough before , because I now raised the whole deviation with VR3.
> 
> The synth sounds like a charm again, thanks for info and helping :-)
>