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(!!!!) (Good Value Single) CX-301-A Cunningham used/good 1928 (2.6ma Gm=700)

By Tube World

$ 29.99

CX-301-A Cunningham used/good 1928 (12/10/28 scribed on base)

2.6ma

Gm=700

 

Good Ma range 2-3ma

NOS Gm = 800+

 

(Filament=5V @ 250ma, Vplate max=135V)


- Crosley C5 1926

 

Class A Amplifier:

-----------------
Plate Voltage = 90
VGrid No. 1 Voltage -4.5V
Amplification Factor (mu) = 8
Plate Resistance (approx) 11Kohms
Transconductance = 725mhos
Plate Current = 2.5 mA

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