TRANSMITTERS & TRANSCEIVERS

Type 5D Transmitter

DATE OF DESIGN

1929. Virtually the same as the 5C with a couple of subtle differences.

FREQUENCY RANGE

6250 - 25000 k/cs on some sets locally converted down to 4290 kc/s

POWER SUPPLIES

1.5 kW Rotary Converter

RANGE IN MILES

TYPE OF SET

VALVE

WAVEFORM

ICW. The frequency of the note is very gruff owing to the low frequency of the A.C. supply from the rotary converter to the transformer i.e., about 70 cycles per second.

METHOD OF PRODUCING OSCILLATIONS

SELF

WHERE USED/FITTED

HF Attachment fitted with Type 2 or Type 4 from which the power supply is obtained. By this time, these two Type Systems were anywhere between 15 and 20 years old. That is no problem! As I write this the RN still have Type 42 destroyers fitted with ICS2 and that is 33 years old to my certain knowledge!

ASSOCIATED WAVEMETER

FURTHER READING

IMAGES, PHOTOS, DOCUMENTS, SCHEMATICS ETC.

Type 5D Photographs, Schematics, Documents

NOTES.

The first photo of circuits show the series and parallel connection of switch 9 in the second photo. The picture on top shows the 5C when fitted with the Type 4 (destroyers etc) and the bottom with Type 2 all other ships larger than destroyers.