This countdown electromagnetic ring launcher was found in an Electronic Hobbyst Handbook from 1993. The components can be difficult to obtain. Details of the launch coil were not given.
The simple speed control for DC motors shown in the figure can control loads up to 2 amps. The...
This logarithmic gain operating configuration was found in the June 1994 Electronics Now magazine. The...
General purpose, up to 8 A SCRs can be tested with this simple circuit. In special the circuit is...