I am converting my '52 to 12v electrical system to be able to run A/C, modern (vintage looking) radio, PA system, sub, etc. So, I needed to take the voltage from 12 to 6 for the fuel gauge and did not want to use a resistor. I don't like the cost of the commercially available "Runtz" regulators, so I built my own. I simply purchased a 6v IC regulator, mounted it on a piece of aluminum (acts as a heat sink) and mounted it behind the dash on the steering column/dash brace.
Here is the finished product. Cost me about $5
