Decided to oder a LM1815 and build a new VR circuit like this.
Just after ordering I found this circuit. Needs only a couple of resistors and 2 transistors. Gonna stick with the LM1815 based circuit though, now that I’ve ordered the chip …
Here’s another one with extremely low parts count. I actually have the Maxim chip, but it’s surface mount so very difficult to solder 
Code for the pic is here.
