Home:  Receiving: DER MOV MARCONI VALVE, 1922

DER MOV MARCONI VALVE, 1922

View all Receiving

DER MOV MARCONI VALVE, 1922

First Dull Emitter valve with a 2 volt heater of 1922. (DER Dull Emitter Receiver) This was a Derivative of the 'R' type with a thoriated tungsten filament of 0.63 Watts ( 1.8 volts 0.35 amps ) which reduced filament power by a factor of 4.
Developed 1st by the Marconi Osram Valve Company.

Add a memory or information about this object

A0630



2007 The Museum of Technology, The Great War and WWII
Company registered in England No. 7452160, Registered Charity No. 1140352, Accredited Museum No. 2221