01A Raytheon 4-Pillar box plate NOS 1930”s (2.8ma)

01A Raytheon 4-Pillar box plate NOS 1930”s

2.8ma

Gm=800

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