TYPE MARCONI HALF kW TRANSMITTER

 

DATE OF DESIGN First used for naval purposes as a standard set in 1920
FREQUENCY RANGE 500 - 1000 k/cs modified to 1364 k/cs
POWER SUPPLY 100 V 0.5 kW Rotary Converter
TYPE OF SET SPARK
WAVEFORM -
METHOD OF PRODUCING OSCILLATIONS n/a
WHERE USED/FITTED The Marconi 0.5kW transmitter is a spark transmitter fitted in Drifters and other small Fleet Auxiliaries where space is limited. Power is supplied from a small steam dynamo supplied with it. Navigation and lighting circuits will also be supplied by this dynamo so these supplies with have to be sacrificed when the use of W/T is required.  In certain Tugs this set was modified by AFO 254/31 to include 375 kc/s.
ASSOCIATED WAVEMETER 1492B or G9
SMALL SCHEMATIC and PHOTOGRAPHS