[sdiy] Transistor help

[Rob Keeble]

Hi,
Whats the point of matching transistors (in expo converters and ladders),
beyond 2mV?
Is there really a sonic difference? Do we need expensive 0.5mV matched
arrays or just transistors from the same batch?

Emperors new clothes? Or State of the Art?

An E-mu Systems Resonant Filter I have recreated sounds better with
unmatched 2N3906's rather than a dual transistor pair (as per the
original).. any thoughts guys?

Regards
Rob
www.emulatorarchive.com


One thing I have noted about modern batches of transistors is they sure
seem to be all very similar...I generally match about 10 pairs at a
time...out of 20 transistors (generally 2n3906) I always get 10 pairs...and
all of the transistors are within about 2mV of each other....30 years
ago...it wasn't like that...as I recall.