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Recent New Posts

 Simple SCR tester.

Sunday, March 23rd, 2014

As usual, we can check a SCR with a plain multimeter. But it is not easy. This circuit is very useful. We can know the location pin on the gate lead, anode lead and cathode lead. And can also test diode, LED and Triac. The SCR devices kind, when take to application with DC voltage. […]

 My first Variable DC Power Supply 1.2V to 30V 1A by LM317

Saturday, March 22nd, 2014

If you are beginner in electronics and you want to have a great power supply. This project is design for you. It can supply voltage 1.2V to 30V at all range is 1A. New update Please read below this article. This is the First DC power supply in my life that made to use in […]

 Infrared switch is controlled by a TV remote.

Friday, March 21st, 2014

Nowadays Appliances used to control almost any function with remote control. But can not put the remote to control other electrical appliances. We can do this project With the following – Can be used with almost any infrared remote. – Can choose to work, or SPST switch or normally open pushbutton switch. -There are output […]

 Simple high level water alarm

Tuesday, March 18th, 2014

This is a simple high level water alarm circuit diagram which we need to build it since: Outdoor fish pond The water level will drop rapidly. We need to check the water level regularly. The water had to be done very carefully. Should not be too hard to turn the tide The fish had Popper. […]

 Nicad and NiMH Battery Charger by IC LM317T

Thursday, March 13th, 2014

Here is circuit diagram of the Nicad Battery Charger. It use IC LM317T ( Hot IC) Control Current less 300mA, Size battery 2.4V,4.8V,9.6V.It Low cost circuit. This is a NiCAD battery charger circuit. High-quality, Not necessary to have a full charge and cut, Because this circuit charges with constant current and voltage regulated. But this […]

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