(!!!!) (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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