[sdiy] 2164 Expo correction

[David G. Dixon]

> > Yes, that 450R resistor is the troublemaker.  Life would be much 
> > better if that weren't there!
> >
> Speaking as a person whose circuit design skills are not so 
> much rusty as thoroughly oxidised, I have a minor, and 
> probably erroneous suggestion.
> 
> Might it be possible to feed the pin from a negative 
> impedence buffer/amplifier, tuned to cancel out the effect of 
> the 450 Ohms?

I like the cut of your jib, young man!  I'll take a look at that this
afternoon.