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6F6G National Union black plate NOS 1951 (40.5ma)

6F6G National Union black plate NOS 1951 (40.5ma)

$ 59.99

6F6G National Union black plate NOS 1951

40.5ma 

Gm=2500

 

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

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- Victoria

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- Wards Airline Radio

See more: vacuum tube
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