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 0-60 volt DC variable power supply using LM317&LM337

Wednesday, January 2nd, 2013

If you want a power supply that covers most applications. This circuit may be what you’re looking for. The price you deny difficult. With the following features. 1. On signal mode can supply DC voltage between 0 volt and 60 volt 2. Can provide DC dual variable on positive, negative and ground are +/- 0-30 […]


 Let’s to build a mini organ keyboard circuit using UM3511

Sunday, December 30th, 2012

The previous day my son said ” A friend has a mini organ. Casio SA-76 44 Key Mini Keyboard, Orange It is Good quality but expensive. My son would have the same. But I said, as we are the Electronic inventor, to try to create their own. We are proud and cheaper too. You might […]


 The food salt & salinity tester meter circuit

Saturday, December 29th, 2012

A Salt intake in large quantities is not good for the body and also causes of diseases such as kidney disease, high blood pressure, heart disease and paralysis. We should not eat too much. But the recognition of salinity, but may differ. Therefore should be a good barometer. I highly recommend The food salt & […]


 High quality tri-amplifier circuits with crossover network built-in

Thursday, December 27th, 2012

      A tri-amplifier has three in one a amplification act drive specifically each audio speakers makes the sound quality is very good.       Normally amp can drive three speakers at the same time are the woofer, mid-range and tweeter. Which may have limits such as: the impedance of the speakers,the loss of signal in Crossover Network. But […]


 Cheap led christmas light flasher circuit is controlled by audio

Friday, December 21st, 2012

Those who are looking for a unique gift of sorts for Christmas and New Year. Certification this project create a predilection certainly for the recipient. This project is designed to meet the needs of create particular project. In order to get the Christmas and New Year. I suggest the project get to the upcoming festival. […]






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