Log-in
12SK7GT Tungsol used/tests like new 1940's, 50% of base is rusted/tarnished (8.6ma)

12SK7GT Tungsol used/tests like new 1940's, 50% of base is rusted/tarnished (8.6ma)

$ 4.99

12SK7GT Tungsol used/tests like new 1940's, 50% of base is rusted/tarnished

8.6ma

Gm=1900

 

Tested on Amplitrex:

Good used Ma range 7.5 - 9ma

Good used GM range 1500-1800

 

Vplate = 250V

Vscreen = 100V

Vgrid = -3V

NOS Ma = 8-9ma

NOS GM = 1900-2000

 

 

 

for:

Collins TCS14 1944

See more: vacuum tube
Scroll to top