This Tesla coil was found in the November 1994 issue of Electronics Now magazine. T1 is a TV flyback transformer, but a car ignition coil can also be used.
This circuit is a wireless temperature transmitter for RF signals in the range of 0.2 to 2 MHz...
We found this circuit in an old Radio Electronics. Components can be replaced by modern...
This immobilizer circuit for vehicles was found in a 80’s Hands On Electronics. The circuit...