Doepfer

> I'll chip in here - you can amplify CV signals with an A-132, which is

Oops!. The above of course is complete rubbish ? you cannot amplify
with an A-132! Basically it?ll 
give a gain of 1 or less. (Must stop trying to do things from memory ?
I posted this quickly before I left 
work, and as I drove home realized it was completely wrong ? bad boy!
I don?t know what I was 
thinking of ? multiplication of CVs maybe, which is certainly what I
have used it for!)

There is a coupling capacitor in the A-136, but it is shorted by a
jumper (?JP2?, middle of top edge of 
the board), so it is DC coupled, and can amplify DC levels. However I
found the 136 really hard to 
understand until I got a scope: without one it?s virtually impossible.
The first op amp in the circuit 
amplifies the incoming signal by about 4.3 times, so anything larger
than about 2V immediately causes 
the op amp output to saturate just below the voltage supply rails (+/-
12V). For any AC signal this may 
be seen as clipping in the final signal output from the module
(depending on all the other settings?). 
Controlling the 136?s affect on a DC signal must take a lot of patience!

Tim

[The views expressed above are entirely those of the writer and do not
represent the views, policy or 
understanding of any other person or official body.]