Excellent work Jimc, they look great! Too bad they weren't available a few months ago, I would have went with yours instead of the Hardy Diesel one I ended up with when one of my Hz transducers went haywire. Most likely I will still be interested in getting some gages from you, since they are so nicely done and some of my Ammeters seem to read differently than others under the same load. What would really be cool ( but apparently not an available option ) is if the gage manufacturer offered both Hz/amp and volt/amp gages, then you could have just 2 gages and monitor amps on both legs as well as Hz and volts....
Anyway...Great job!