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It looks like the headlight motor runs a cable drive. I've seen this on early 50s Lincolns and American cars used on convertible tops and power seat mechanisms. The relays and controls used to drive these types of motors were quite unique. The problem is that these motors are typically two wire and requires a complete reversal of polarity to make them operate in the opposite direction. One of the old cars that I restored, I replaced the old 50s 6v relays with 4 modern relays using the NO and NC terminals on the relay to complete the reverse polarity task. The other thing that is typically missing from those old controls are how to stop the motor from running when it gets to the end of the travel. In modern cars, when the power window motor gets to the bottom, it opens a thermal fuse to stop. In these older motors and controls, when the motor stalls at the end of the travel, the current goes up which can be used to open a self reseting circuit breaker to stop it. Once you get the system working, you can test with and without the block or individual terminals connected to reverse engineer the design.
I would connect with a good electrical supply house like Waytek, Terminal Supply Inc, American Autowire and use as many modern connectors, fuse panels, relays, and terminals as possible to make a robust wiring system. Working with old cars, you need to touch or inspect every inch of every wire because a rodent, a chafe, degraded tape, etc might be the path to a car fire. With a wood and fiberglass car, that's a lot of materials that like to burn, melt, and combust. Even replace every fuse because old fuses can sometimes not blow when asked. I'm also a big proponent of modernizing the electrical systems. There are a lot of solutions out there with wiring coverings, loom, tape materials, and fabricated covers to nearly hide the entire wiring system and the modernization. The time spent going through everything in detail pays off so much at the back end with reliability and piece of mind. It doesn't look like there is much originality to save there except wire lengths and routing.
Otherwise this is a really neat project and a great time capsule. I hope to follow along. Thanks for sharing online.
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