BALLAST RESISTOR........WHAT GIVES?

@67Dart273 , thank you for your teaching on this subject. My father was a Master Chief Avionics Technician in the USN and taught electronics both in the Navy and Technical Colleges. He always hoped that I as his youngest son would be interested to learn it from him. At the time it bored me but now I'm fascinated by it. And yes, ballast is the correct term for how the resistor is affecting current flow per the design of this circuit, end of story.