37 Raytheon NOS 1946 (7.3ma)
$ 14.99
37 Raytheon NOS 1946
7.3ma
Gm=1200
Test parameters:
Vplate=250V
Vgrid=-18V
Iplate good range 6.5-8ma
Gm=1000-1100
(Filament=6.3V @ 300ma, many think the 37 sounds better than the 76)
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