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.
Other CMOS gates can be used in this sensor, which we found in the July 1995 Electronic Now...
This power supply is not protected from shorts in the output. Output voltage is given by the...
This circuit came out in a publication called Electronics Handbook of 1993. Q1 can be a 2N2222 or even...