Assuming it is a 30 ohm unit, that is correct for one end of travel. It should taper off to zero ohms at the other end of travel.

Later gauges were 30 ohms. I'm not sure about yours.


"It's just a phase. He'll grow out of it." Mama, 1964

1956 Chevy 1/2-ton 3100
1953 Chevy 6100 "The Yard dog"
1954 GMC Suburban Now with a new proud owner.