12 volt coil

[hardtimes]

Originally Posted by jacksonchuck

The reasons for switching to 12 volt on my touring cars is to allow installation of air conditioning, use of modern 12 volt accessories(Nav, cell phone charger ,sirius radio, etc.), consistency with all of my other A's (have 6 - all 12 volt), easier to start (my opinion and experience), and easier to more safely jump start from or to a modern car.

Are there any domestic cars that ever used a 12voly coil without a external resistor?

Hey Chuck, thanks.
Well, your reasoning and opinion all make sense to me. Especially since you have multiple Model A cars and are not a neophyte. I changed my only A to 12V decades ago, for some of your reasoning. I'm not into modern tech, so no need for most of what you mention/accessories. You could most likely be helping here... a lot of what you've learned over the years about Model As.
Good luck !
BTW..if my 'opinion' in not apparent , I just believe that a guys QUESTION / request for help should be addressed in first answers. Then if one sees that that's been accomplished, go off into weeds proselytizing.