Canadian WS 19 receiver MK II (Canadese WS19 ontvanger MK II)

The Wireless Set No. 19 was developed in 1940 by the British War Office's Signals Experimental Establishment and by Pye Radio. The Pye model was replaced with the MK II model in 1941, and the MK III model in 1942. The sets proved valuable for armoured fighting in the Western Desert.

In 1942, the No. 19 Mk II was produced in Canada by Northern Electric Co., Canadian Marconi Co. and RCA Victor. The British design was improved and interchangeability of components such as the valves, was instituted. A majority of Canadian sets used English/Cyrillic front panel lettering, the result of a Lend-Lease contract to the Soviet Red Army.