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(!!!) (BEST OVERALL PAIR) 6HF5 GE branded RCA NOS 1960's (132ma and 134ma)

(!!!) (BEST OVERALL PAIR) 6HF5 GE branded RCA NOS 1960's (132ma and 134ma)

$ 89.99

1 pair) 6HF5 GE branded RCA NOS 1960's

1 tube) 132ma and Gm=10,600

1 tube) 134ma and Gm=10,650

 

Tested on Amplitrex

Vplate=175V

Vscreen=125V

Vgrid=-25V

Good Ma range 90-125ma

Good Gm = 9,000 - 11,000

 

- Diathermy machine built by Mettler Electronics

See more: vacuum tube
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