This powerful transmitter for the 27 MHz band was found in a Japanese publication from 1961. The circuit is powered by battery and has the details of the coils given next to the diagram.
Found in General Electric documentation from the 1980s, this circuit generates signals that depend...
I found this circuit in a Popular Electronics from November 1999. The magazine is no longer...
We found this circuit in an American documentation from the 90s. The circuit applies to vehicles...