6EM7 RCA coin-base black plates NOS 1970's broken guide pin (2.4ma/50ma)
$ 9.99
6EM7 RCA coin-base black plates NOS 1970's broken center guide pin
2.4ma Gm=1900 (triode)
50ma 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)
See more: vacuum tube
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