Battery Charger help

I used to build the Associated Chargers in Saint Louis Mo. Don't know where they come from now...
but I built the Snap-On and Associated Brands (Same Thing Inside)
Assembly line job, I dropped in the gauges, Rectifiers, Cables and Hooked up the Transformers before they were Load Tested and Closed up...
I bought one when I worked there in 1989, Still worked Great when it was stolen 2 years ago. I've needed it about 100 times since then.