Alternators, = more or less consistent , but simple cars do not have that much electrical going on. If I want an alternator on a Model A I will put a small compact one inside an original Model A Powerhouse generator case and extend the tin back cover to hide it. BUT I prefer a generator. I like that varying charging of a generator, it's more tactile instead of just the same all the time. Puts me in the time frame. I like to see that ammeter fluctuating with the other gauges, but especially at night, when the brightness of the head lights tells the story, it's my excuse to drive like a bat outta hell!. How could it be better? The faster you go the more light you need! It's the same reason to use the manual ignition control and twin Zenith updrafts with GAV and manual choke. I can find everything automatic and boring on anything made after 1970 the newer it gets the more likely you are to sleep at the wheel!