Turn signals make all lights blink…..67 New Yorker

So, I finally got the car running but now when I turn on the turn signals, all the lights blink. If I turn on just the running lights, everything seems fine but as soon as I turn on the headlights, they blink too, along with the dash lights. The alternator gauge also bounces all over the place when they are on. Any ideas on what could possibly be wrong? Any help would be greatly appreciated. Thanks
Author: jaysix