CS-60 modifications

[Haible Juergen]

I got a new toy - finally I have a CS-60.
(and no intention to get a CS-80 anymore.)

It's in quite good condition, needs some tuning, and some
cleaning of contacts.

And ... it's modified.

The seller was a little secretive about the previous owner
(he said he sold it for a former band mate, and I don't know
his name), but I'd be interested to find out who did the
modifications.

There are two long shafted toggle switches below the rotary
sliders for touch sensitivity, and apparently these are switching
the CS-60 in a dual VCO mode, sort of.
But apparently it's not just an ordinary Dual mode (with 4 voices),
but something more sophisticated. First inspection showed that
a group of Gates (or CVs ?) is switched, and first listening test
hints that it still has more than 4 voices sounding in that 2VCO 
mode. Maybe just some doubling of the last note which is depressed ?

I'm curious to figure it out, and I imagine I can figure it out the hard
way,
but I'd rather get in contact with the person who modified it.

Now there might be a chance that the tech who did this is on the list.
There aren't that many people who modify CS-synths, after all.

It's actually some piece of *good* work that was done here (unlike
many other mods I've seen), with cables routed in bundles where they are
not in the way for service.
So if you read this and it reminds you of some work of yours, don't be 
shy and contact me (;->)

JH.


PS.: Anybody familiar with cleaning CS-60 key contacts in particular ?