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2008 www.valve-radio.co.uk
Metropolitan
Vickers (Met-Vick)
Cosmos DE 50 Valve
Can be used as a detector or amplifying valve.
Operating data:
Filament volts - 5 to 6 volts
Filament amps - 0.09
Amplification factor - 9
Anode impedance - 20,000 ohms
Mutual Conductance - 0.45 mA per volt
Anode voltage as a detector - 30 to 60 volts
Anode voltage as as amplifier up to 100 volts.
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