Hi
The Radio Museum has been sent photos of an STC R6 receiver. Going by the wavebands it looks like it is possibly an early Navy receiver from around 1935.
The frequency ranges are; 1200 - 430kHz, 430 - 158kHz, 158 - 60kHz
It has 8 valves 9D2 9D2 9D2 9D2 9D2 9D2 11D3 7D7
here are some photos.
Any comments on its use, history or other information would be very helpful.
Thanks
Mike