This inverter circuit can be build within rupees 180(mosfet version) and rupees 350(triansistor version), price esteemed for only circuit, except transformer and battery, cabinet etc… The triansistor power section […]
Simple powerful and portable amplifier by BEL 1895 I.C
his is a very simple and easy to use audio amplifier using I.C BEL(Bharat electronics limited)1895 , a very common IC. This circuit can run on 3V to 6v , […]
HOMEMADE DTH receiver diagram
Credit: This article was published in KJB. I don’t have much time to write parts list and details. If anyone volunteer help me doing this, his name/website will be listed […]
Electronic choke circuit to run broken filament 40Watt tubelights
This simplest electronic choke circuit can be built within 20-30 rupees, it can glow open tubelights too, no need of a new tubelight. Working voltage: 170~300V for 220V tube, 80~140V […]
Low cost effective Bass-Treble circuit using Op-Amp 741
This simple but powerful bass, treble, volume control is made by General Op-Amp IC LM741. The input voltage is 12V, but it will also work with 9V and 6V. This […]
CD4047 based Squarewave Inverter Oscillator
This simple and cheap(but powerful) squarewave oscillator can give oscillation to any mosfet based inverter/ups. The circuit consists of one central I.C CD4047. I used HCF4047BE from ST microelectronics. This […]
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