The Co-oprative Society wanted to sell radio sets they could discount. Th S would obviously give be them a great advantage over the competition but, due to retail price control, they were unable to. The answer was to manufacture their own sets. Or, find someone to make their own brand for them. They called their brand, Defiant… for obvious reasons.
Circa early 30s
Covers the Long and Medium Wave Bands
This is a TRF radio