We found this circuit in a 1960 Radioarama magazine. The instrument tests common general-purpose transistors indicating their gain on a moving coil instrument. The loop serves to adjust the circuit.
Small inverters can help to obtain high voltages from batteries. Although the switched inverters that...
It is an ideal assembly to be implemented as work by students of digital electronics courses, as...
In this very simple circuit, the LED flashes at a frequency of 60 Hz. It is convenient to check the...