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(!!) (#1 56 Pair) 56 Sylvania black plate NOS 1940's branded Western Electronics 1940's (5.7ma and 5.8ma)
(!!) (#1 56 Pair) 56 Sylvania black plate NOS 1940's branded Western Electronics 1940's (5.7ma and 5.8ma)
$ 24.99
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) 5.7ma Gm=1500
1 tube) 5.8ma 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
See more: vacuum tube