Modes: CW.   MCW, Radiotelephone
Frequency Range:    30 to 43  MHz per Marconi spec sheet.
Power Output:  Might be 12 watts. Needs colloboration
Frequency Control: 6 crystal control frequencies.
Power drain:   6 vo lts at 17 amps. A dynamotor is used to provide the operating voltage for the transmitter.
Tube functions:

Crystal oscillator 1 x 6V6
Amplifier and frequency multiplier 1 x 6L6
Power amp 1 x 6L6
Speech amp 1 x 6N7
Modulator 1 x 6N7

Dimensions:

Transmitter unit - 12 in Wide x 6.5 in Deep x 11 in High
Dynmotor  unit -  8 in Wide x 4.5 in Deep x 7.25 in High

Weight:

Transmitter unit - 15 pounds
Dynamotor unit - 20 pounds

Comment,s 1) The Canadian Marconi marketing brochure does not mention a  receiver. It is assumed that the TR-15PS requires an external receiver.
2) The marketing brochure for this radio was found  at Library and Archives Canada in the RCMP file #RG12 Volume 113. In the 1930s, the Department of Transport handled the purchasing of equipment for the RCMP so that's  why the brochure was found there. The transmitter was most liekely used in RCMP patrol cars.

TR-15-PS remote control panel installed in a patrol car.	TR-15-PS shown a trunk installation.

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Contributors and Credits:

1) Marketing sheets from Canadian Marconi

Aug 27/19