Using a dual 555 CMOS this very useful circuit on the bench was found in the July 1998 Electronics Now magazine. The circuit is battery powered.
The circuit shown in the figure is suggested by Texas Instruments (www.ti.com) and makes use of...
September 2017 - Digi International's SX 868 RF modules for low-power 868 MHz CE / RED operation...
We found this chopper circuit in a 1967 publication. The transistors are of the time, and current...