‘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.
Related posts:
by F.E.N. · Published 30. June 2021
by F.E.N. · Published 14. March 2013 · Last modified 18. March 2013
by F.E.N. · Published 9. April 2008 · Last modified 7. June 2010