6K6GT Tungsol NOS 1954

43ma 

Gm=2760

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