This circuit is from a Radio Electronics from February 1966. The circuit is of a type that was found in many applications at the time as output from radios, televisions and other equipment.
We find this circuit in an 80s operational amplifier documentation. The circuit applies to any...
We found this circuit in a 1981 publication. Its purpose is to measure resistances of very low...
According to its author, this device indicates the amount of force applied to the sensors. The...