tattoo power supply / NTD

[the3secondrule]

New Tattoo Day & bit of an odd build report.
No pics yet, but I built a power supply for my mate who is a tattoo artist. just a simple variable voltage power supply on perf, using an lm317.
it's only a prototype, and I've got a few things to work on before I deliver the finished item, but at least I got it tested out on me 

the candles are a bit of a nod to my damn near constant insomnia. at least building pedals has given me something to do on those long loooong nights