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.
This monostable circuit uses one of the two flip-flops available on the CMOS 4098 integrated...
aaa The circuit shown generates 100 kHz signals for calibrating the scale of a receiver in 100 to...
This simple circuit can use general purpose transistors and SCRs like the TIC106. The warning...