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 low-pass circuit was found in the December 1990 issue of Radio Electronics magazine. The...
We find this simple musical instrument in a 1977 Radio Shack documentation. The key resistors must be...
Suggested by a Philips documentation from 1970, this circuit uses period components, operating at 50...