(!!!!) (Best Quad) 6F6G Marconi Spain NOS 1940's (33.2/33.5/33.5/34.2ma) 1-2% matched
$ 239.99
1 matched quad) 6F6G Marconi Spain NOS 1940's
1 tube) 33.2ma Gm=2400
1 tube) 33.5ma Gm=2410 slight rattle inside base - dried glue particles
1 tube) 33.5ma Gm=2350 slight rattle inside base - dried glue particles
1 tube) 34.2ma Gm=2470 slight rattle inside base - dried glue particles
TUBES PLUGGED INTO OCTAL SOCKETS IN PHOTO
Test settings:
Vplate=285V
Vscreen=285V
Vgrid=-20V
Good Ma range = 32-38ma
Good Gm range = 2300-2600
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
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 (Best Quad) 6F6G Marconi Spain NOS 1940's (33.2/33.5/33.5/34.2ma) 1-2% matched "Pin It")