[sdiy] Multiplexed Expo Converter?

[David G. Dixon]

> >> You could run the two input signals through exponential converters,
> >> sum them, then run that through a logarithm...
> >
> > I think some multiplier circuits (like the Blackmer cell) sort of do
> > that, sort of ish. I never fully understood any of them, though, so
> > take my statement with a grain of salt.
> 
> No one noticed that I got that backwards originally.  It's obviously log,
> then sum, then exponential.


I noticed, but didn't want to embarrass you by pointing it out... (just
kidding -- it blew right by me!)

But seriously, I think this would not be such a good idea, since the
logarithm of a number is a far less precise representation of the number
than the actual number.  If eliminating inaccuracy is your goal, this would
seem like a fairly poor way to achieve it!