Homemade simple adjustable power supply based on an LM2576 adjustable switching coonverter, ment for supplying a tattoo machie.
In sections below you can find pictures and description:
Photos
Description
The PSU is a simple, staightforward implementation of a switching converter with external inductor and diode. The exact component values might be different and choices were made based on part avalibility. The supply has been used for quite a long time without any issues.