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(!!!) (Recommended Pair) 56 National Union rebranded Western Electronics NOS 1940's (4.9ma and 5.1ma)
(!!!) (Recommended Pair) 56 National Union rebranded Western Electronics NOS 1940's (4.9ma and 5.1ma)
$ 24.99
1 pair) 56 National Union rebranded Western Electronics NOS 1940's "D" getters
1 tube) 4.9ma Gm=1400
1 tube) 5.1ma Gm=1400
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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 (Recommended Pair) 56 National Union rebranded Western Electronics NOS 1940's (4.9ma and 5.1ma)&Category=vacuum tube&ImageURL=http://tubeworldexpress.com/cdn/shop/products/5_30c8220f-32a0-4df3-9a3a-2333aa548055.jpg?v=1601392464){kind=link}
 (Recommended Pair) 56 National Union rebranded Western Electronics NOS 1940's (4.9ma and 5.1ma) "Pin It")