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.
An audio amplifier of good power, and great sensitivity; a simple tuning step and a detecting...
The circuit shown is suggested by National Semiconductor in its 1994 Linear Applications Handbook. We...
This simple circuit can use general purpose transistors and SCRs like the TIC106. The warning...