(!!!) (Best Pair) 1625=VT-136 National Union NOS 1943-1944 (87/40 and 90/40)

1 pair) 1625=VT-136 National Union NOS 1943-1944

1 tube) 90/40 (JAN-CNU-1625)

1 tube) 87/40 (US-Navy-CNU-1625) a few vertical scratches on base

Tested on TV-7

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

– ELKIN linear amp