01-10-2019, 07:07 AM
This site explains a lot about the charging system (But doesn't answer your question Bob). My RN has a resistance wire wrapped around the socket of the ignition light, afraid I can't elaborate any more on that though!
http://www.austin7.org/Technical%20Artic...refresher/
http://www.austin7.org/Technical%20Artic...refresher/