My Radio Collection — 1920's
This is where radio broadcasting began. We started with the single tube (and crystal sets) driving an earphone to mulit tube, mostly TRF radios. There were superhet sets too, but they were much different than the 1930's. Manufacturers figured out how to gang capacitors, which put some "radio tuning experts" out of business. The ordinary citizen could operate one of these sets.
This is one of the first commercially produced radios on the market. This is missing the box. It was a portable radio with headphone storage in the front and batteries in the back. It has two tubes. I haven't played with this one yet but I hope to get it working if the tubes are good.
This radio with circuit diagram and full description can be found on my Paragon Restoration page.