(!!!!) (Best Pair) 01A Cunningham NOS 1940 era boxes were factory sealed (3.8ma and 3.7ma) (same Gm) (many more pairs will be listed)

(!!!!) (Best Pair) 01A Cunningham NOS 1940 era boxes were factory sealed (3.8ma and 3.7ma) (same Gm) (many more pairs will be listed)

$99.99
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1 pair) 01A Cunningham NOS 1940 era boxes were factory sealed - gold colored printing 1 tube) 3.7ma and Gm=800 1 tube) 3.8ma and Gm=800 - many more pairs will be listed     NOS Ma = 2.5-3ma+ NOS Gm = 700-900   (Filament=5V @ 250ma, Vplate max=135V) - Crosley C5 1926   Class A Amplifier:-----------------Plate Voltage = 90 VGrid No. 1 Voltage -4.5VAmplification Factor (mu) = 8Plate Resistance (approx) 11KohmsTransconductance = 725mhosPlate Current = 2.5 mA

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