[sdiy] Best CA3280 projects?

[James Coplin]

So, I'm cleaning up my work area and going through part drawers etc. and I
realize that my cache of 3280's I have on hand for repairs etc. is larger
than I will need for repair parts in the future.  I have a few 3280AE but
mostly 3280E chips.  What is folks favorite projects that I could use
these for?  I want it to be something that I would have to use 3280 rather
than an excuse to use the chips up.  In other words, I can make a good VCA
with the 2044 so making one with the 3280 isn't exactly a good use of the
chips (or is it?).  I await your flood of suggestions for use.

James R. Coplin