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CX-301-A Cunningham Balloon used/very good 1930's (3.0ma Gm=750)

CX-301-A Cunningham Balloon used/very good 1930's (3.0ma Gm=750)

$ 34.99

1 tube) CX-301-A Cunningham Balloon used/very good 1930's

3.0ma

Gm=750

 

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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