Hello friends
aaj is video me ham ek variable dc power supply banayenge. Yeh most useful power supply hai. Isse aap battery charge kar sakte ho. Apne project, experiment, me use le sakte ho. Use components - wood, 5 amp 12-0-12 12v transformer, 6A4 diode, 35v 4700uf capacitor, digital Voltmeter Amp meter, av socket, dc socket, potentiometer, wood polish, main lead, 300w dc buck converter step down power module, etc
Circuit diagram
