[sdiy] Discrete OTA

[David G Dixon]

> Now if we had FPVCAA... 

You lost me there.  However, what would be really nice is to have a dual
Irwin linearized 2164 in a 16-pin package, complete with all the various
inputs and output I-V converter with an optional connection to it.  We at
Intellijel did just that with our picoVCA board, which is essentially our
entire uVCA circuit, and which one can find plugged into the back of the
Intellijel Linix.  It turned out not to be that great for building modules
(it's still a bit large at 1" square, and the necessary pin headers are a
bit expensive), but it makes a very convenient toy for breadboard
prototyping.