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(!!!) (Best Pair) CX-301A Cunningham Balloon NOS 1930 era (2.7ma and 2.7ma) 1% matched

(!!!) (Best Pair) CX-301A Cunningham Balloon NOS 1930 era (2.7ma and 2.7ma) 1% matched

$ 119.99

1 pair) CX-301-A Cunningham Balloon NOS 1930 era with data sheets

1 tube) 2.7ma Gm=700

1 tube) 2.7ma Gm=700

 

Good Ma range 2-3ma

NOS Gm = 700-800

 

(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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