I could, I was just trying to get a handle on best practice these days, seeing I don't have an LM317 in stock at the moment!
I've got a lot of options here to think about, was hoping to get back to it today but was doing a bit of tidying in the garden instead (a few days of no rain and north-westerlies - Invercargill is sheltered by the Southern Alps - means a rare opportunity in mid winter).
Will report back once I've worked out what I'm doing
