This dual-operator thermometer circuit was found in the September 1982 issue of Radio Electronics magazine. The sensor consists of a general-purpose transistor.
Suggested by Fairchild in a 1980s publication, this multiplier uses operational amplifiers from that...
This circuit, from a 1981 publication, can be changed to use more modern components such as the...
We find this circuit in an American publication of 1978. The integrated circuit is the CMOS 4013...