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(!!!) (Best Single) 6HF5 GE Zenith NOS 1960's (135ma)

(!!!) (Best Single) 6HF5 GE Zenith NOS 1960's (135ma)

$ 39.99

6HF5 GE Zenith NOS 1960's

135ma

Gm=10,700

  

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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