There are so many one tube radio in the website but they use old tubes like 1T4. I intend to experiment with a commonly found tube like the 12au, ax,at twin triode to make a simple rfegen MW radio using the ferrite bar coil of an AM radio and the PVC varicap commonly available. Then put an IC audio amp. It should be possible using 12 volts DC.
Perhaps a kit.
3/1/20 Hi tube enthusiasts interested in RF with tubes. A brief: -Edison invented the light bulb. -Fleming of UK imported Edison's bulbs. -Fleming played with a bulb and placed a second element inside. -Using batteries, he discovered electrons moved inside the bulb. Eureka! The DIODE! -Back in the U.S.A., a third element was discovered to control the flow of huge electrons with TINY currents. EUREKA! THE TRIODE. It was originally called the AUDION. So, it is CATHODE,GRID,PLATE. -Electrons moved fast inside the tube, i.e. at high voltage, 45 volts upwards. Armstrong, American, was first to experiment RF in a tube. He used the basic t riode as an RF amplifier. He invented the REGENERATIVE RECEIVER.
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