6EM7 GE Canada NOS 1960's (2.9ma/30ma)
$ 22.99
6EM7 GE Amperex NOS 1970's
2.9ma Gm=2100
30ma Gm=5500
Tested on Amplitrex
Good Ma Triode 1 = 1.5ma Gm=1500
Good Ma Triode 2 = 30-40ma Gm=6000-7000
for:
Joule Electra LA-100 MK3
Modwright power supply
Wright Sound phono wpp-200c
Wright Sound WLA12A preamp
Kenji Mizushima Kenso
Music Reference 6EM7 amp
Welbourne Apollo mono amps (KR/VAIC VV52B or 300B output tubes)
See more: vacuum tube
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