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(!!) 13EM7 RCA black base black plates NOS 1968 (2.0ma/28ma)

(!!) 13EM7 RCA black base black plates NOS 1968 (2.0ma/28ma)

$ 6.99

13EM7 RCA black base black plates NOS 1968

2.0ma Gm=1600

28ma Gm=5100

 

Tested on Amplitrex

Good Ma triode #1 = 1.2-1.4ma

Good Gm triode #1 =1400-1600

 

Good Ma triode #2 = 30-40ma

Good Gm triode #2 = 5500-7000

 

 

- Modwright

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