[sdiy] Moog VCHPF pole's NPN/PNP matching

[Jean-Pierre Desrochers]

Did anybody build a Moog 904B VCHPF circuit?
The schematic states that all the NPN/PNP pairs
used in the 4 poles chain (Q13,14 Q17,18 Q21,22 Q25,26)
needed to be matched pairs.
See the circuit here:
http://www.freeinfosociety.com/electronics/schemview.php?id=944

I read lots of threads on the list about this issue
with no findings ..
Well I matched a lot of NPN pairs (2N3904)
and PNP pairs (2N3906) last weekend using Bob Moog's
little matching setup with very good results
(better than 2mv in matching values !) but I'm having
a hard time to match NPN/PNP pairs in my lot..
The 2N3904 batch are around .600v @ 100uA
but the 2N3906 batch are around .650v @ 100uA.
Anybody knows good complimentary pairs available
or a way to compensate for the vbe differences ?
I'm considering specialised NPN/PNP IC matched pair.

JP