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(!!!) (Matched Quad) 1625 National Union NOS 1943-1944 (74/40 - 78/40 x 4 tubes)

$ 39.99

1 matched quad) 1625 National Union NOS 1943-1944 in original boxes

1 tube) 74/40 

1 tube) 74/40 a few small scrapes on base

1 tube) 74/40 

1 tube) 78/40 

 

Tested on TV-7D/U

 

 

  

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

 

- ELKIN linear amp

See more: vacuum tube
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