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6EM7 RCA coin-base black plates NOS 1970's broken guide pin (2.4ma/50ma)

6EM7 RCA coin-base black plates NOS 1970's broken guide pin (2.4ma/50ma)

$ 5.99

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)

 

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