This transmitter for the 3.5 and 7 MHz ham radio was found in a 1950s Japan publication. No information was given on the coils and the power supply.
This circuit uses components that are still common despite being from 1995 documentation. The circuit can...
Found in an old American documentation, this circuit uses neon lamps as a reference to obtain a...
This pulse width-tuned circuit was found in the March 1996 issue of Electronics Now magazine. The...