[sdiy] Soviet EM-14 combo organ chip ID help... 'command generator'?

Bob Weigel sounddoctorin at imt.net
Sun Jan 30 10:38:08 CET 2011


Wow..lotsa chips in this thing.  I've so far ID'd the 512 stage bbd, in 
one of the strangest packages I've ever seen... LM301 equiv's... some 
other dual opamp it appears, and then...there are a couple CMOS chips.  
I can't find which ones they are.  K561TB1 it kinda looks like... and 
K561(upside down U..)H2 ..lol

THen there are a couple TOS chips in the 7 and 6 note partials... and 
another that's called a well tempered tone generator (which I don't seen 
an american equiv. to but it's probably like a regular TOS I guess 
then?)  a couple 74121 chips..divider...and something on the power 
supply board that could be the issue....

KPEH2b where the 'b' looks kinda like a 6.  Can't recall the Cyrillic 
names...

anyway I can't find anything on that one.  I have a hunch it's a 723 or 
something.

OK then under the keyboard... we have 72 chips.  But they are only two 
types.

K1012(backward N)(upside down U)1 and K1012K3

The latter is a divider with modulation I see.  The other is called a 
"Command Generator" it appears.....

rrright....what's a command generator?  lol.   Anyone? I'm guessing some 
kind of gate ...

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