[sdiy] ARP VCO PNP-NPN exponential pair matching

[Paul Schreiber]

If you want to track 1V/Oct accurately, then yes. But then one can argue
no ARP VCO tracked that well in the first place :)

Here is a good article on how to do it.

http://www.diamondstar.de/transistor_matching_bjt.html

Paul S.