1625 National Union like new 1940”s no printing in white box (85/40)

1625 National Union like new 1940”s no printing in white box

85/40

Tested on TV-7D/U

40 is 65%

(1625=807 with 12.6V @ 450ma filament and 7 pin base, common in WWII Transmitters)

– ELKIN linear amp