[sdiy] ARP VCO PNP-NPN exponential pair matching

[Dave Leith]

I would like some advice on matching the ARP VCO exponential pair.
I've searched the archives and the only advice I found was - that they
don't need matching - either they are going to be OK and work or they
will be so far off that you should try another pair. Any other tips or
procedure that you would recommend?

The circuit is in the standard PNP-NPN exponential pair Arp Odessey
(ver 2 and up) ARP Axxe VCO or ARP 4027-1 VCO module (can be found on
http://www.till.com/arptech/modmain.htm)


Thanks dave