From what I can tell if the transistor is marked Motorola, RCA, or Texas instruments it functions. I have a tester for them and most of the "new" ones fail at high rpm also. I only deal with pre 80 stuff. @Stephen Hotz is working on a fix for these that should not fail at all. He is taking old cases also if you want them to go to a good cause.
Good news # makes sense recycle and re-use with improved product !
Keep group posted if this individual has a useful product some folks to like the Chrysler system.
It is amazing how many different ones are around, all different. At least with oem Mopar you can tell what they are supposed to do by the color combinations. Aftermarket no way. Just junk in a chrome box usually. Kind of learned a lot of this over the years. One of the biggest hold backs is having the proper ballast matched to the box. That's a whole can of worms there also.
