This tutorial teaches us about the 35V Dual Output Power Supply Circuit, the circuit outputs is plus 35 volts and minus 35 volts, powering audio amplifiers and op-amp circuits. Circuit also uses transformer, bridge rectifier, big filter capacitors and further, its output becomes +35V, -35V and ground. Circuit Working: Parts List: Components Values Quantity Capacitors […]
Hobby Circuits
Low Cost 1.2V AA Ni-MH Solar Battery Charger Circuit
This project shows about a Low Cost 1.2V AA Ni-MH Solar Battery Charger Circuit, as it works with small cheap solar panel and charges the battery safely in sunlight; also it uses only solar panel, diode, resistors and two transistors. Furthermore, these parts are few which are easy to find and circuit protects battery from […]
Solar Water Pump Circuit using Battery and MOSFET
In my earlier article I showed about solar water pump circuit using relay, that design works, but relay makes clicking sound and relay contacts can burn after long use. So now here is the new version and this project is Solar Water Pump Circuit using Battery and MOSFET instead of relay, as MOSFET has no […]
Solar Water Pump Circuit using Battery and Relay
This project is about Solar Water Pump Circuit using Battery and Relay; it uses one 18V 20W solar panel, two small 12V batteries, one relay and diodes. The circuit can run a 12V DC water pump and battery stores power from solar panel and relay controls when pump run; also it is a very simple […]
Natural Bird Sound Generator Circuit using Transistors
This is a small Natural Bird Sound Generator Circuit using Transistors, as this circuit uses two BC547 transistors, some resistors, capacitor and a speaker. In addition, the circuit is simple for beginners and works on low voltage like 3V to 9V and is also good for toys, hobby projects, alarms and for school projects. Circuit […]
Audio Oscillator Organ Circuit
This article is about small Audio Oscillator Organ Circuit, we can hold in our hand, as it plays simple notes and make funny tones; also it uses very simple parts and shows how oscillator make sound. Further, circuit shows how amplifier make sound big and it also works on low voltage which is safe for […]