Log-in

(!!) (#3 56 Sylvania Pair) 56 Sylvania black plate NOS 1940's branded Western Electronics 1940's one tube has slightly tilted glass (5.2ma and 5.5ma)

$ 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) 5.2ma Gm=1400

1 tube) 5.5ma Gm=1500 slightly tilted glass - see photo

  

(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
Scroll to top