4066 Latching Touch Switch (CB25241E)

This circuit was found in the November 1989 Radio Electronics magazine. Power supply depends on the application.

SWR meter (CB7063E)
Standing wave ratio or SWR is an important measure of whether all power from a transmitter is being...
Adding Reset to a CMOS Monostable (CB128E)
Here we show how to add a reset key to the monostable using two NAND gates (CB127E). When the key...
Portable MW Transmitter (CB18515E)
This short-range circuit can act as a wireless microphone. We got the schematic and the printed...