A very simple project for the beginner who is limited for cash and unable to purchase what they need to get started in electronics servicing or very simply,needs a quick easy tool to locate analogue ...

The main part of this circuit is the LM386 amplifier chip. It also uses a transistor input to buffer the input signal and provide extra gain for the LM386. The little unit has helped me out on ...

Repairing radios was easier when radios were simple. There were typically two strategies. You could use a signal tracer (an amplifier) to listen at the volume control. If you heard something, the ...