My ancient shop light has 2 mammoth ballasts with 4 starters for the 40w tubes and I'd like to be able to know for sure what's at fault before I begin replacing parts. Is there a procedure for bench testing ballasts using a multimeter? Next, is there any reason to replace a ballast,if one is needed, with the original type, or can I adapt a modern smaller ballast that doesn't use starters? TIA Clint
- posted
20 years ago