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(!!!) (Best matched Quad) 56 National Union rebranded Western Electronics NOS 1940's (5.5/5.5/5.6/5.9ma) (matched quad)
(!!!) (Best matched Quad) 56 National Union rebranded Western Electronics NOS 1940's (5.5/5.5/5.6/5.9ma) (matched quad)
By Tube World
$ 54.99
1 matched quad) 56 National Union rebranded Western Electronics NOS 1940's
1 tube) 5.5ma Gm=1400
1 tube) 5.5ma Gm=1500
1 tube) 5.6ma Gm=1500
1 tube) 5.9ma Gm=1500
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 matched Quad) 56 National Union rebranded Western Electronics NOS 1940's (5.5/5.5/5.6/5.9ma) (matched quad) "Pin It")