Double tickler - potentiometer or variometer?
Posted: Thu Aug 15, 2024 5:32 am
Variometers -rotatable ticklers to adjust the inductive coupling have around a long time, but some folk like a portable gennie. The rotatable coil is easily bumped in transit, so here's an "equivalent" to discuss:
See also https://ham.stackexchange.com/questions ... -been-done
See also https://ham.stackexchange.com/questions ... -been-done