[sdiy] SSM2164 to use as ring modulator...

[Neil Johnson]

> No, you can't use the 2164 in exactly the same way as the LM13700
> because it is different.  But as I said, with an op-amp or two you can
> build a ring mod with only two 2164 gain cells.  You just need to
> apply some grey cells to the problem.

Actually, you only one extra op-amp, a trimmer, and three resistors in
addition to the Irwin linearised VCA circuit to implement a basic ring
mod.  More components if you want finer null trimming, or if you don't
have a stable reference voltage already available. I'm sure you can
work out the details yourself.

Neil
--
http://www.njohnson.co.uk