6EM7 Sylvania NOS 1970 (1.5ma/47ma)

6EM7 Sylvania NOS 1970

1.5ma Gm=1700 (triode)

47ma Gm=7300 (pentode)

Tested on Amplitrex

Good Ma Triode = 1.5ma Gm=1500

Good Ma Pentode = 40ma Gm=6500

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)