Wireless Set No 58 Mk 1 (Canadian) 1943

General Description

Wireless Set No 58 (Canadian) is one of a number of sets developed during WW2 for short-range R/T communication in forward areas. Other similar sets, all originally based on the specifications of the British Army WS18, include the Australian 108 Mk2 and the U.S. produced WS48.

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Technical Data

The set, like the others above, covers the frequency range 6-9 MHz. It is for use on AM only, with a superhetrodyne receiver using an IF of 456 kHz. The transmitter has a power output of 0.3 watts.

The range of the set is given as 3 miles with a 6 foot rod, 5 miles with a 12 ft rod, 4 miles with a telescopic aerial and 2 miles with a 25 ft ground aerial. The set weighs 14.5 lbs, with an additional 15.5 lbs for the backpack containing battery and accessories.

The battle battery supplies 180/90volt HT, 1.5 volt LT and -21 volts grid bias battery.

The transmitter uses 2 1299A and a 1S5, while the receiver uses a 1T4 as the RF Amp, 1R5 osc/mix, 1T4 IF Amp, 1S5 Det/avc/AF amp and 1S5 AF Output.

The sets can also be powered by a vibrator unit type SC-999-F, which is powered by 2 volt accumulators.

This set is very rare in Australia, as the locally produced 108 set (Radio Corp. Victoria) was used by the Australian Army.

Illustrations of the set