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(!!!!!) (Best Overall Pair) 6F6G Marconi Spain NOS 1940's (33.2ma and 34.2ma) 1-2% matched

(!!!!!) (Best Overall Pair) 6F6G Marconi Spain NOS 1940's (33.2ma and 34.2ma) 1-2% matched

$ 129.99

1 matched pair) 6F6G Marconi Spain NOS 1940's

1 tube) 33.2ma Gm=2530

1 tube) 34.2ma Gm=2560

TUBES PLUGGED INTO OCTAL SOCKETS IN 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

 

 

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