CV Mixer Prob. Solved

A.S.P. ms20 at
Fri Sep 20 20:56:37 CEST 1996

First of all, thanks to all for responses to my query.

I tried replacing the 30pF cap across the output buffer with larger 
values, but this did nothing.  

As a last ditch effort, I replaced the buffer IC (LF411) with a 741 and 
the problem went away.  I don't know why and I do find it surprising, but 
the circuit works now.  (Any ideas why?)


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