Wireless Set No. C52

This was a mobile transmitter/receiver developed in 1943 for general purpose use from Brigade to Division communication.  The C-52, developed  from the No. 9 Set, proved to be very popular in all quarters although it was noted that while performance on medium power was good, there was a tendency to overheat on high power. This set was particularly valuable in airborne roles and for command vehicle use. The U.K. alone spent over 14 million dollars purchasing 352 sets


Modes :R/T, MCW and CW
Frequency Range: 1.75-16 MHz
Receiver type: 108-953 ZA/C00072
Transmitter type: ?
Power Output:  Up to 100 watts. Uses a 813 tube and grid modulation.
Frequency Control: Master oscillator
Vintage: 1944
Comment: Canadian design which replaced the No. 9 Set. In the UK, the No 11 set was manufactured by E.K. Cole

Used by the British Army, this is a  WS-52 set less accessories. (L-R) Receiver, common power supply and transmitter. The dark, mail-box shape atop the WS-52 was a post war modification which contained a new dynamotor because the original 1200v dynamotors were not reliable due inadequate HV insulation. It was cheaper to install a piggy back unit rather to retrofit a new one. At the top right is an antenna tuner. (Photo courtesy Wireless for the Warrior )

This WS-52 set was once owned by Jacques Fortin VE2JFE (Photo by Jacques Fortin).



This is a remote receiver. The blank hole above the band switch is the clock holder. 
With front panel cover removed.
Receiver - chassis bottom view.
Front of ZE-12 receiver power supply  with cover on. 
ZE-12 receiver power supply - cover off. This was used only with the remote receiver. Except for a slight difference in component layout, this supply looks identical to the one used with the CSR-5 receiver. It is capable of operating from 110/220 VAC or 12 VDC power sources.
All photos in this table by Palix Olivier, France



Above and below: Two views of the front panel.
ws52_tx_ front2.jpg
Top view
ws52_tx_ side3.jpg
Right side
Right and back views.
Back and left side views.
ws52_tx_ back4.jpg
Back side view. Note the Marconi "snatch plugs" at the top right side of the chassis.
ws52_tx_ back5.jpg
Left side.
All photos in this table by Denis Chouinard VE2DSH


Front view of transmitter power supply. The power supply used in units built in the UK was similar . 
Top view.
Right side view.
Left side view.
Back view.
Back and left side views.
All photos in this table by Denis Chouinard VE2DSH

Receiver nameplate data. (Image via E-bay) 
ZE12 power supply nameplate data. (Image via E-bay) 


Click to enlarge

c52_complete_station_s.jpg This photo illustrates a complete WS-52 station complete with all accessories. (Provided by Palix Olivier, France)
c52_schematic_s.jpg Schematic diagram. (Provided by Palix Olivier, France)
ws52_ze12_ps_schematic_s.jpg ZE-12 power supply schematic (Provided by Palix Olivier, France)
c52_10s.jpg  Super size photo of the remote receiver. (Photo by Palix Olivier, France)

Clock detail. Photo by Palix Olivier, France)

Receiver spares kit. It consists of ARP3 (or 9D2) tubes, 12Y4 and 0Z4 tubes; meter; speaker and a special alignment tool for RF and IF transformers.
Front cover of manual.
All photos in this table by Palix Olivier, France

Contributors and Credits:

1) Wireless for the Warrior   http://home.wxs.nl/~meuls003/wireless/wireless.html
2) Palix Olivier <olivier.palix(at)free.fr>
3) Denis Chouinard <denischouinard(at)enter-net.com>
4) André Guibert <aguibert(at)sympatico.ca>
5) Denis Chouinard VE2DSH<denischouinard(at)enter-net.com>
6) Report No. 73 Historical Section  (G.S.) Canadian Army Headquarters Feb 11, 1955
7) Jacques Fortin <jacques.f(at)videotron.ca>

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Dec 28/16