Found in documentation from the 1980s, this circuit uses a SG1524. It is an uncommon integrated circuit nowadays. The circuit provides a current of 20 mA with a symmetrical voltage between 15 and 18 V.
This circuit is from a 1989 Electronics Handbook. The zener diodes are 9 V x 1 W and the...
The purpose of this 1965 Radio Electronics circuit is to help observe cycloid waveforms on an...
A touch of the sensor makes the load bistable (load) connected in Q1. For a BC548, a 6 V or 12 V...