1974 Brain Box saves the day.

Now, I'm not arguing here.....quite the opposite, actually. Looking for clarification. WHY is it "ok" to use the style resistors you say are "bad" for the ignition boxes on the instrument cluster voltage regulator? Lots of people have done that and they work great. Isn't it possible some of "that style" resistors....transistors.....whateverthehelltheyare are a good design? Help me understand.
Rob it is all about getting the heat from them out thats usually what makes electronics fail. The old ones aka "real" are mounted to a heat sink that dissapates the heat well, the new transistors are burried inside the box so its heat and other heat dgenerated by other internals has no where to go. Pretty wel explained in here. That help?