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(!!!) (BEST PAIR) 6HF5 Sylvania NOS 1960's (127ma and 132ma)

(!!!) (BEST PAIR) 6HF5 Sylvania NOS 1960's (127ma and 132ma)

$ 79.99

1 pair) 6HF5 Sylvania NOS 1960's

1 tube) 132ma Gm=10,000

1 tube) 127ma Gm=9300

 

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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