[sdiy] 2n3904 transistor matching stats
Mike Beauchamp
list at mikebeauchamp.com
Wed Jun 8 01:05:51 CEST 2016
Today I went old-school and hand matched a bunch of NPN transistors and
thought I'd share the stats.
These are bog-standard 2N3906's from Digikey, tested with the standard
moog test schematic and read with a Fluke.
# - V measured
1 - .562
~
1 - .567
~
1 - .587
~
1 - .590
1 - .591
1 - .592
~
3 - .595
13 - .596
71 - .597
34 - .498
13 - .599
16 - .600
Seems like out of 156 transistors, almost half match up within 1mV and
most are within 5mV. But it seems like some are definitely outliers.
Mike
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