This circuit was found in a 1980s documentation. The circuit uses common components having an output of 10 Hz per centigrade degree of variation. The sensor is a transistor.
This circuit can be used to test zener diodes up to 25 V using a standard multimeter. The voltage...
This TTL traffic light circuit was found in an English magazine from 1977. The magazine no longer...
This circuit is from National Semiconductor documentation. The operational amplifier is of the...