I've been told by some who work on "vintage" radios that mine (late 70's) are too "new" for them to fool with.

I have a couple good am/fm/cb Chrysler factory radios that are hard to turn, or tune? You turn the knob, they usually go left to right on the dial, but won't go right to left.

Anyone know who I might send them to, or know a quick "on my bench" repair?

thanks