Thanks, GRJ. Thought those might be just what you had on hand for converters, but wanted to make sure I wasn't missing something. I'm getting some of those anyway though, as you say, very nice to have around and you can't go wrong with 9-30V in and 1 amp rating, especially at that price. I'll probably also get a couple from DK or Mouser in the lower mA range just for the meters. Parts are like trains, no such thing as too many, and parts don't empty your wallet near as fast!
I like the opto-couplers too, but the only ones I have are the 8141s (and a few each of their 2, 3 & 4 opto-coupler versions). Definitely a good idea to use those though, especially with all the stuff you do!
