This circuit of a 1964 Electronic Design uses a photodiode from the time. Modern equivalent can be used. The standby current is 1.2 mA.
The circuit is from the 1990 Motorola Linear Databook. The circuit can be implemented with other...
We can obtain the characteristics of an operational amplifier with FET by adding FETs common to the...
This interesting circuit for testing signal transistors with the oscilloscope was found in the...