Re: 55 400 instrument performance

Posted by humanpotatohybrid On 2022/6/4 9:25:03

Standard car USB chargers offer a 5V output. I wouldn't use one permanently, but for testing, you could presumably take a USB phone/tablet charger for a car (preferably one with a 2A output) and take a spare USB cable, cut it and strip the red and black wires (ignore the green and white) and attach to the power lugs of the gauge you are testing, with the instrument regulator and preferably other instruments disconnected. (Red +, Black −)

Howard is the instrument voltage regulator called out on the wiring diagrams for 55? I don't see it anywhere.