This simple circuit uses a car ignition coil. The circuit appeared in the 1983 Radio Electronics Annual Edition. The circuit supports equivalent transistors.
This circuits shows how to use in operational amplifier as a basic voltmeter. Power supply must be...
The coils determine the frequency of this oscillator that we found in the January 1996 issue of...
This circuit was found in a National Semiconductor Handbook from the 1990s. The integrated circuit...