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(!!!) (Best Pair) 56 National Union rebranded Western Electronics NOS 1940's (6.5ma and 6.9ma) (Highest mA and Gm)
(!!!) (Best Pair) 56 National Union rebranded Western Electronics NOS 1940's (6.5ma and 6.9ma) (Highest mA and Gm)
$ 38.88
1 pair) 56 National Union rebranded Western Electronics NOS 1940's
1 tube) 6.5ma Gm=1500 taller glass - on left
1 tube) 6.9ma Gm=1600
Matched on Amplitrex
Vplate=250V
Vgrid=-13.5V
Good Ma range = 4.5 - 5ma
Good Gm range = 1300-1400
(76=Type 56 with a 6.3V Filament and also is similar to type 37)
UX-5 pin socket
- Tube Audio Lab FF preamp
- Korneff preamp
See more: vacuum tube
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 (Best Pair) 56 National Union rebranded Western Electronics NOS 1940's (6.5ma and 6.9ma) (Highest mA and Gm) "Pin It")