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.
This field strength meter is intended for the VHF range, above 100MHz. The lowest voltage or...
We found this circuit in a 1994 documentation. It can be implemented with the indicated...
This simple blinker for incandescent lamp was obtained from an English documentation. The power...