This is a mini FM transmitter built and powered using 2 transistors, designed by Tony van Roon. This small transmitter…
Above circuit diagram is a easy, simple and cheap switching voltage regulator which has capability to deliver adjustable voltage output…
This is the positive voltage regulator circuit with PNP Boost transistor: The IC8211 presents the voltage reference and regulator amplifier,…
Here the simple, low cost and easy audio booster circuit. It uses a transistor of 2N3392 ad the main amplifier.…
The following diagram is the circuit diagram of voice transmitter which use FM signal carrier to transmit the vioce signal…
This is the circuit diagram of low forward-drop rectifier. A TMOS power FET (Q1) and a LM393 comparator provide a…
I've found some interesting schematic of load cell amplifier. As we know, load cell amplifier is pretty expensive with fair…
This cut phone line detector circuit is used to detect whether your phone line is active or not. Components List:…
The following diagram is the FM tracking transmitter based on 4 transistors. No additional notes for this tracking transmitter diagram,…
This is an easy FM tracking transmitter circuit project :). The scheme designed by Tony van Roon, and here the…