2 kw Broadcast Transmitter of 1923SPECIFICATIONS
Model: For lack of a proper model name, this device is hereby referred to as the "2 kw Broadcast Transmitter of 1923"
Frequency Range: Broadcast band. Station CKAC in Montreal operated this transmitter on 430 metres (697 KHZ)
Power Input: 2 kw (anode voltage of 20,000 volts)
Power output: 1.25 kw
Antenna current: 10 to 11 amps.
Frequency Control: Master oscillator (assumed)
Mains power: 115 VAC
Circa: 1923 .
Range: 300 miles
Comment: An article on the 2 kw transmitter which appeared in Radio News of Canada 1923, cites the following power ratings:
Oscillator: 2 kilowatts (The RF output stage is assumed to be part of the oscillator ).
Two modulators of 1 kilowatts each
Two rectifiers rated at 2 kilowatts.
An under (?) modulator of 100 watts
|2 kw transmitter front view. (Library and Archives Canada photo)|
|A variant of the 2 kw transmitter (Library and Archives Canada photo)|
|Rectifier unit for 2 kw transmitter. (Library and Archives Canada photo)|
Contributors and Credits:
1) Lewis Bodkin <5bodkin555(at)gmail.com>
2) Radio News of Canada, Dec. 1923