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 amplifier was found in an English publication from the 60's. The transistors are germanium of the...
The maximum current of this circuit is 1 A. The circuit is from Motorola Linear Interface ICs from...
This circuit can be used to monitor a low frequency source indicating deviations. We found the...