I have not read every word in this thread but have paged through it. I have a hand drawn schematic of my turn signal/brake light system, it probably won't photograph good enough to do you any good. I used two DPDT relays, one for the left, one for the right, they have a set of NC contacts and a set of NO contacts with 12 volt coils. Mine is 12 volt but that should not be an issue in your design. As I mentioned in a prior post, my turn signal switch is a three wire. Works like a dream like a modern system without failure for the last 6 years, 100% electro-mechanical.
Last edited by 78buckshot; 03/28/202410:34 PM.
1957 Chevrolet 5700 LCF 283 SM420 2 speed rear, 1955 IH 300U T/A, 1978 Corvette 350 auto, 1978 Yamaha DT175, 1999 Harley Davidson Softail Fat Boy