Published in the August 1986 issue of Radio Electronics magazine, this circuit acts as a weapon, capable of delivering strong shocks to anyone who touches it. The circuit operates at 10 kHz.
With the change of the coil, the circuit can operate at frequencies between 30 MHz and 150 MHz....
The frequency of this Pierce oscillator, found in 1969 documentation, depends on the crystal. The...
This simple circuit can be used to power a simple communication system using ordinary telephones....