This simple audio signal tracer or follower can be made with a BC548 instead of the original transistor. The output is made in a small crystal phone. The power can be from 5 to 9V.
April 2017 - New Texas Instruments DRV8x brush motor drivers for 1.7 to 8 A currents and voltages...
This circuit was found in a technical documentation from the 90's. The transistors can be...
This circuit was found in American documentation from the 90's. The circuit applies to any...