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(!!!) (Best Pair 1946) 56 Sylvania black plate NOS 1946 (5.4ma and 5.7ma) (same Gm)

(!!!) (Best Pair 1946) 56 Sylvania black plate NOS 1946 (5.4ma and 5.7ma) (same Gm)

$ 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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