With this circuit it is possible to select transistors and their compliant test. Or circuit consists of an oscillator. Or transformer of the type found in old transistor radios.
This circuit is from a Linear Technology manual from the 90's. The integrated circuit is from the...
The original design of this circuit is from a 1978 publication. The circuit can be implemented with a...
The PNP transistor can be a BC548 and the NPN any common phototransistor. The circuit is from 1968...