Como fabricar un multicargador de pilas, baterias y acumuladores de 1,5 hasta 30 volt dtu 2017

Gentlemen, today I'm showing you how to make a tool that will be very helpful for charging all types of energy accumulators... such as batteries, batteries, and any device like cell phones. This equipment will also help you perform electronic inspection work. I hope you like it, since it's a tool I use a lot, and I want to give it to you as a gift. Regards, DTU 2017 Materials for the regulator: 1 50x50 mm printed circuit board 1 9 volt 1 amp or 12 volt 1 amp transformer 1 switch 1 male plug for AC current (220 or 110V, depending on the country) 1 optional LED light with a base for installation 1 LM317 plus its heat sink with its screw for fixing 1 5kohm potentiometer plus its knob 1 104 polyester capacitor 1 100 microfarad capacitor at 25 volts 1 2200 microfarad capacitor at 25 volts 1 210 ohm resistor Solder, soldering iron, solder paste, needle-nose pliers, etc. For the voltage doubler: 2 2200 microfarad capacitors at 25 volts 2 1N4007 rectifier diodes The app is on the Play Store called: Resistor Calculator. Regards, DTU 2018