(!) (Best Value Pair) US Navy-CNU-1626 National Union NOS 1940”s (30ma and 32.5ma)

1 pair) US Navy-CNU-1626=VT-137 National Union NOS 1940”s

1 tube) 30.0ma Gm=2400 no printing

1 tube) 32.5ma Gm=2600

(1626=12.6V @ 250ma filament, Mu=5, Power=5 watts, introduced in 1943)

– Don Allen amp
– Cary