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.
The amplifier gain shown in the figure is given by R1. The circuit is valid for other photodiodes and is...
In the figure we have the way to excite a lamp up to 600 mA with one of the four operating LM324....
With a 22 V symmetrical power supply this amplifier provides 15 W of output power with excellent...