Mini Moog Problem

[jean-charles maillet]

over the past summer there's been some cool stuff brewing at fellow DIY
member Jim Blair's place on Vancouver island, home of the ninth "lost"
mellotron Mk-5 which came to life for the first time last month ... Jim
played the intro to Strawberry Fields my jaw just dropped, I had never seen
a mellotron in person before so needless to say it was a rare treat being
around this thing and doing the electronics on it ...

last week his buddy brought over a minimoog that's laid dormant for twelve
years ... it had a dead negative regulator circuit and I couldn't figure
out which device in the circuit had died because of all the coupling ... I
didn't feel like randomly replacing active devices either ... so I bypassed
the circuit with a 337T regulator circuit ... two things to note: VCO2 is
dead and all four boards plugged in pull around 170mA from this regulator
... about 130mA is going to the oscillator board while only around 40mA
feed the other three boards when they are plugged in alone ... I've never
seen the inside of a mini before and even though we had the wrong issue for
the schematics it seemed to me that a dozen or so op-amps shouldn't pull
that much juice though I know this alone is not enough to guess currents
with ... apparently one of the 339 op-amps got squished (?!) a long time
ago and it's die casing is loose so we'll be changing that one at some
point for sure ...

basically I'd like to know if anybody has VCO schematics for the later
version mini and also whether ot not the oscillator board normally pulls
this much current during normal operation ...

thanx, jc

 http://www.lynx.bc.ca/~jc/    \\\\\\\\\\\\\\\\\\\\\\

     Vacuum tube modeling - Traynor amp schematics