DIY: Lab Bench variable voltage and current PSU

Homemade variable power supply, ideal for testing leds, motors and other electronics: Dual Meter : http://bit.ly/2u6Uykx or http://bit.ly/2T8ItVK DC module : https://goo.gl/J9oZwy 4mm jack : https://goo.gl/93L5mm Power jack : http://bit.ly/2BMSMsw 10k precision potentiometer :https://goo.gl/oq6SrG or https://goo.gl/SyZ4Qo or Normal 10k Potentiometer : https://goo.gl/uqZDMe Multi charger: https://goo.gl/RzrCf8 or http://bit.ly/2GIQ09Z 1º-Power the DC Step-Down module ​using a transformer from 4 to 30 volt, conect the amp meter to the source "in" 2º-The yellow wire is pluged to the "out" positive side of the buck converter 3º-The remaining bigger black wire is conected to the "out" negative side, the the red is the output negative Instructables : https://www.instructables.com/id/Vari... Como conectar / ligar o medidor de currente / tensão e voltagem Ligação Voltimetro Amperímetro Digital , ebay, excelente para testar leds, motores etc, barato e facil. Specification Supply voltage: 4.5~30V; Measuring current: 10A Features Dual-display digital current and voltage meter Application With five wiring, easy to access to car / battery car / motorcycle car lines, used to monitor the battery voltage, battery voltage status grasp, can also be used for other products voltage and current measurement purposes Other Supply voltage: 4.5~30V; Test voltage: 0~100V Dual display digital current and voltage meter Ammeters set up,DIY-How to make how to use lcd volt and amp meter Dual Digital How to wire and build your Current / Voltage Meter with schematic Adjustable variable voltage power supply Esquema de ligação para Voltimetro Amperímetro Digital feito em casa, serve como regulador de voltagem . Make your own Bench Lab Power Supply unit project (psu) Workshop tool Original 5A DC to DC CC CV Lithium Battery Step down Charging Board Led Power Converter Lithium Charger Step Down Module XL4015 #DTekDIY