Thanks for the idea. Just made one with a 4xAAA box & RCA plugs. The only bad battery I had was a Health e-Cigarette, but it works. Right now using 3 regular batteries in series, getting 4.7v. Have ordered some rechargeable 1.2v for this box (to give me 3.6v) & some 3.7v (protected) for a couple of more. This is fun, except when I picked up the soldering iron from the wrong end 8-o Dam that hurt.
Burnie
Burnie