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.
September 2017 - Mouser Electronics is supplying the entire line of high power MCx resistors from...
March 2017 - The new Texas Dual ISO762xxL digital isolators are available at Mouser Electronics...
Found in 1980s documentation, this circuit uses a small transistor radio output transformer and a double...