Transmitters & Transceivers

©RN Communications Branch Museum/Library

Type 633

	DATE OF DESIGN
	FREQUENCY RANGE		Channels 1 and 2 - 3 to 6.7 MHz. Channels 3 and 4 - 6.7 to 15 MHz.
	POWER SUPPLIES		110 to 115 and 200 to 250 A.C. single phase 50/60 Hz.
	RANGE IN MILES.
	TYPE OF SET (VALVES USED)
	WAVEFORM		Voice and CW.
	ASSOCIATED WAVEMETER.
	METHOD OF PRODUCING OSCILLATIONS
	WHERE USED/FITTED		A self-contained single-sideband HF transmitter=receiver fitted in ships generally for medium range working.
	FURTHER READING
	PHOTOS, SCHEMATICS, DOCUMENTS		Details of Transmitter Type 633.
	NOTES.		BR 1188.