Ammeters and good memories.

Here is a memory question for everybody, especially those who were around the TEF 20, MF 35, MF 65, and MF 100 series when they were new.

Can you remember what happened when you operated the heater plug, and the solenoid for starting on those tractors, did the Amperemeter show a minus reading ? Both my MF 35 and 65 does, but no original wiring diagram I have found shows a wiring that allows for this. All I have found shows a wiring that will make the Amperemeter not reacting during starting. Many diagrams even shows a wiring where you can only see the charging, but not the discharge, means that the engine is at idle and you use more current than the dynamo delivers.

Please try to remember and tell me.

Bill