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(!!!!) (Best Pair) 56 Sylvania black plate NOS 1940's branded Western Electronics 1940's (6.4ma and 6.5ma) (Highest Ma and Gm)
(!!!!) (Best Pair) 56 Sylvania black plate NOS 1940's branded Western Electronics 1940's (6.4ma and 6.5ma) (Highest Ma and Gm)
$ 31.99
1 pair) 56 Sylvania black plate NOS 1940's branded Western Electronics 1940's original boxes, 4 metal prongs on top mica, same internals
1 tube) 6.4ma Gm=1500
1 tube) 6.5ma Gm=1600
(Vfilament = 2.5 volts)
Amplitrex Test:
Vplate=250V
Vgrid=-13.5V
Iplate good range = 4.5-5.5ma
Gm=1400
- Inspire LP-27A
- DIY
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