[tbirdtbird]

The statement that the Model A gen is not regulated is not true. It is regulated by the third brush, like all the generators of its day and even many tractor generators well into the 50s and 60s. Granted it is not a very sophisticated means of regulation, but regulated nonetheless. And yes any generator without proper regulation can put out very high voltage. A shorted field will give little or no regulation. Yes the solid state regulators out there are much better. His readings do not indicated bad connections. They do indicate high voltage and blown bulbs indicate high voltage. Swap the gen. for a known good one for kicks and giggles and see what happens.

Advice by PS above is good advice. try it.