Found in a 73 magazine from the 1980s, this circuit generates signals from 3.2 to 22 MHz. FETs can be general-0purpose current types. No information about the coils is given.
The circuit presented may use any general purpose transistor. The indicator is an LED and...
This circuit found in Electronics Handbook, Volume XIII 1993 shows a simple configuration of a...
This circuit was obtained in a 1982 English magazine. The purpose of this circuit is to make an...