This battery charger circuit was found in the August 1970 issue of Radio Electronics magazine. The circuit uses 4 transistors. Q1 must be provided with a good heat sink.
This power supply was specifically designed for the CB18749E transmitter, but it is suitable for...
This circuit was found in the November 1992 issue of Radio Electronics magazine. The circuit has...
Designed to operate with a video camera, this small transmitter was found in the February 1993...