‘Wiper coil’ for crystal circuit exciter
Gyula at the OverunityForum suggested that people try a ‘wiper coil’ for tuning on the ‘Crystal Circuit Exciter’. It is the same design used on a simple crystal radio. I built one today and it worked.
Experiments, inventions, patents, …
by F.E.N. · Published · Updated
Gyula at the OverunityForum suggested that people try a ‘wiper coil’ for tuning on the ‘Crystal Circuit Exciter’. It is the same design used on a simple crystal radio. I built one today and it worked.
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