How to make a variable power supply | सिर्फ 600/- रुपए में बनाए variable पाॅवर सप्लाई || MTC HINDI 

hello guys
in this video I show you
how to make a variable power supply in only 600-700/- rupees
it's output voltage 1-30v Amp 0.01-5.00A [75W] max
components required :-
1. XL4015 5A dc to dc step down converter
2. 12-0-12 3A transformer
3. 12v 3" cooling fan
4. dc volt amp meter 100v 10A max
5. 10-12v extra supply for run volt amp meter and cooling fan
6. male and female banana plug 1 pair
7. 220v input socket with cable
8. simple spst switch 2 pcs
9. potentiometer knob 2 pcs
10. pvc pipe sheet for making body
11. some wires and super glue
I hope you enjoy and like it
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