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.
The figure shows how to implement an alarm buzzer in an LM3914 to warn about crossing the scale...
This circuit can act as a shield being controlled by a microcontroller by pin 1 or 2. The...
This circuit was obtained from a 1980's QST magazine. The circuit can generate 1 to 15 MHz signals...