Just sharing my first attempt at a voltage regulator.
This is a very simple thing for anyone to make...
It must be...
I made it.
I followed Oddbot's walkthrough here and all worked fine. Great work Oddbot.
It now allows me to use various batteries, such as a small 12v stollen from our lawnmower, or a 7.2v racing pack I found in the loft. I just have to add a heat sink and it's all done. So a big thankyou to Oddbot for his walkthrough and here's a photo of the almost finished product.