The output from a "modern" voltage regulator is controlled electronically. The old mechanical regulators had physical contacts. Some flicker is expected at low engine speeds, new cars do it too. But if the flicker is too pronounced, your alternator may be having internal issues. You can have the alternator tested for free at your local chain auto parts store.
How noticeable is the flicker, and how big a range of flutter at idle? What is your idle speed, and if you switch on the headlights and blower motor and A/C at idle, does it make a difference?
Vikki 1969 Goldenrod Yellow / black 400 convertible numbers matching
