Laboratory
DC Power Supply
Universal Adapter
Introduction/Why
As a electronics technician, retro video game console hardware modder, and hobbyist circuit builder, over the years I have acquired a comprehensive electronics and hardware toolbox for the garage. One tool that I've always wanted for my electronics toolbox is a lab bench DC power supply. Often times when I pickup used electronic gadgets from thrift stores, fleatiques, or garage/yard sales the devices have DC power jacks to power them and are supposed to come with a matching power supply. Unfortunately, many times the devices aren't sold with the matching power supplies, and thus I am not able to test or power on the devices. A lab bench DC power supply would also be nice for powering any active circuits I design on breadboard or PCB prototypes.
A DC Barrel Jack and a power supply
Using a laboratory DC power supply (with variable voltage and variable current), I would be able to dial in the correct, constant voltage and maximum current to power my devices with missing power supplies. I would need to build a universal adapter to power on the DC power jack devices and interchange the DC barrel jack tips. I have a universal DC power supply in my electronics toolbox with interchangeable DC barrel jack tips, but the variable voltage range is small and the maximum current is limited to only a paltry 300mA. This power supply is fine for powering simple electronics devices, but not for more complex devices such as video game consoles (like a Sega Genesis Model 1 or portable DVD player, which can require 1A and 2.2A of current respectively.)
