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