TRANSMITTERS & TRANSCEIVERS

Type 73 Transmitter

DATE OF DESIGN

1939

FREQUENCY RANGE

POWER SUPPLIES

POWER TO FINAL STAGE.

TYPE OF SET (VALVES USED)

WAVEFORM

METHOD OF PRODUCING OSCILLATIONS

WHERE USED/FITTED

In 1939, Type 73 was listed as being CONFIDENTIAL. There were several vaiants of the set in addition to the basic Type 73 (basic model), viz, 73X (first experimental model), 73C (CCS), 73D (CWS).

It was a W/T set to do with W/T communications which were higher than normal (at that time) VHF frequencies and using voice (R/T) which had just been perfected by the Admiralty Signal Establishment.

We do not hold any further information on these sets but we do know that the Types were widely fitted in heavy ships, aircraft carriers and cruisers. 11 ships had the 73, 15 the 73C, 24 73D, but the largest number of ships, 40, had the 73X the experimental set.

FURTHER READING

IMAGES, PHOTOS, DOCUMENTS, SCHEMATICS ETC.

NOTES.