Home » 56 RCA no name NOS 1940's getter halo screen loose at bottom of tube (6.5ma)

56 RCA no name NOS 1940's getter halo screen loose at bottom of tube (6.5ma)

Name: 56 RCA no name NOS 1940's getter halo screen loose at bottom of tube (6.5ma)
Brand: Tube World
SKU: 56
Price: 7.99 USD
Availability: InStock

By Tube World

$ 7.99

56 RCA no name NOS 1940's getter halo screen loose at bottom of tube, this does not effect tube performance

6.5ma

Gm=1600

Tested on Amplitrex:

Vplate=250V

Vgrid=-13.5V

Iplate good range = 4.5-5.5ma

Gm=1400

(Vfilament = 2.5 volts)

See more: vacuum tube

Tags: 1943, 56, all, black plate, Raytheon, Sylvania, triode, Tungsol