DATE OF DESIGN

1930.

FREQUENCY RANGE

100 - 900 kc/s.

POWER SUPPLIES

From transmitter types 37, 38 or 49.

RANGE IN MILES

N/K or N/A

TYPE OF SET

SPARK

WAVEFORM

METHOD OF PRODUCING OSCILLATIONS

WHERE USED/FITTED

Deployed and fitted to Types 37, 38 and 49. The primary use of the transmitter is:-
(a) To dry out the deck insulator if weather conditions are such that the Valve set will not oscillate.
(b) As a stand-by transmitter in the event of a complete breakdown of the Valves or essential components of the Valve set. Uses quenched spark gap system.

ASSOCIATED WAVEMETER

FURTHER READING

IMAGES, PHOTOS, DOCUMENTS, SCHEMATICS ETC.
(Click images to enlarge)

NOTES.

This transmitter was known as the "RAD" or "Radiator", not that it merely radiated.....what Spark transmitter didn't ?, causing interference around the Fleet, but that its heat output was such to dry out any deck insulator, waterlogged or snow/ice bound, acting as a good heat-giving radiator!