(!!!) (Best Pair) 6F6GT Tungsol NOS 1954 (34ma and 34.5ma)
$ 59.99
1 matched pair) 6F6GT Tungsol NOS 1954
1 tube) 34.0ma, Gm=2630
1 tube) 34.5ma, Gm=2300 small dimple in top of glass - see photo
Test settings:
Vplate=285V
Vscreen=285V
Vgrid=-20V
Good Ma range = 32-38ma
Good Gm range = 2400-2600
Recommended for
- Sparton Nocturne 1186 from 1936
- Fire Stone Sir Chef S-7404-3 1939
- Montgomery-Ward Airline Model 62-226
- Supratek Cortese
- Victoria
- WE 106 preamp clone
- Wards Airline Radio
See more: vacuum tube