(!!!) (Best Pair 1946) 56 Sylvania black plate NOS 1946 (5.4ma and 5.7ma) (same Gm)
By Tube World
$ 31.99
1 pair) 56 Sylvania black plate NOS 1946
1 tube) 5.4ma Gm=1500
1 tube) 5.7ma 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 Pair 1946) 56 Sylvania black plate NOS 1946 (5.4ma and 5.7ma) (same Gm)&Category=vacuum tube&ImageURL=http://tubeworldexpress.com/cdn/shop/products/1_bdd95568-6fe9-408f-92ad-ba3a1673bd0e.jpg?v=1678825073){kind=link}
 (Best Pair 1946) 56 Sylvania black plate NOS 1946 (5.4ma and 5.7ma) (same Gm) "Pin It")