AN/FRT-501 (TH117) Transmitter

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This transmitter was made for the RCAF in the early 1950's by Canadian Marconi and deployed mainly to RCAF DEW Line radar sites. The RF output stage uses four 4-125 tubes. One example made it to Alert , NWT.

Modes: AM/CW
Power: 500 watts
Frequency Range: 1.5 to 15 MHz
Primary Power: 115VAC, Single Phase, 2.5 KVA

Frequency control: crystal controlled.
Dimensions: 60" H x 22"W x 18" D.
Weight - 650 pounds.
Circa - 1952
 

Full view of the transmitter. The top portion of the door contains a schematic of the transmitter etched on a metal plate. There is spares storage at the bottom of the door. (E-bay photo)

Various views of the transmitter sub-assemblies. (E-bay photo)

AN/FRT-501 Nameplate (E-bay photo)

Sept 24/20