Vintage Synth Repair

<< if i'm having trouble getting the keys on my Realistic by MOOG synth to 
trigger, does this sound like a contact-cleaning job? >>

possibly, possibly not. 
the mg-1 (which actually predates the rogue, it's distant cousin) has a 
"polyphonic section", which is a top-divider circuit. however, it uses a good old 
normal synth keyboard with just the usual wire contacts for voltage division 
for the mono synth.
the second set that would normally be used to derive a trigger for the mono 
synth are pressed into service as the polyphonic keyboard. it's a bit like an 
elka or a crumar, if you've seen their string synths and organs. the trigger 
for the mono synth is created by detecting the minute voltage changes whenever a 
new key is pressed. I'm doing this from memory, so apologies if this is a bit 
sketchy. I do have the schemo somewhere but I know it's been on the net too. 
let me know if you're still stuck. there is an account somewhere on the net 
too of it's design, which was supposed to be a lifeline/partnership/marketing 
exercise when moog were struggling in the early 80s. 

my other moogs are two prodigys, one from each end of the run (they sound 
identical though) and a LAMM memorymoog, which is the absolute dog's nuts and 
which I routinely use to terrify the neighbours.

the foam that was intended to stop dust getting into the fader-pots is famous 
for disintegrating on several moogs of this period, and it really is 
disgusting once it goes. I don't think it harms the faders too much. my mg-1 (which 
has a similar triggering problem) and my rogue both went this way, but have 
cleaned up alright. if you gig them or smoke in the studio (I do both) you may 
want to fit a replacement. thick or layered polythene with slits and holes cut 
appropriately may suit, though as I say, my little moogs seem to be fine 
without. 
it's just this triggering problem on the mg-1.... I will get around to it one 
day!

duncan/r.m.i.