Found in the March 1985 issue of Radio Electronics magazine, this circuit uses a digital module from the time that makes it easy to configure. The circuit uses a bridge thermistor as a sensor.
This filter is suggested by the Texas Instruments Linear Circuits Applications, 1986 edition. The...
This CMOS circuit was obtained in a 1980s documentation. The circuit has a 10-second time delay...
This circuit consists of a switched mixer with digital touch control. The circuit was found in old...