1625 National Union like new 1940's no printing in white box (72/40)
$ 7.99
1625 National Union like new 1940's no printing in white box
72/40
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
See more: vacuum tube