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(!) M-201A Macy balloon 1929 used/strong (2.7ma)

(!) M-201A Macy balloon 1929 used/strong (2.7ma)

$ 28.99

1 tube) M-201A Macy balloon 1929 used/very good 

2.7ma

Gm=700

 

Vplate=135V

Vgrid=-9V

Ma NOS = 2.8-3ma

Gm NOS = 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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