Electrical gurus needed

[Shakey]

Have had the strangest electrical problem with my normally reliable '72. After an afternoon of driving just before returning home I noticed that when I used my turn signals they were slower than normal and that my tach needle dropped about 100 to 200 rpms every time the signal flashed. Also the turn signal dash bulb did not seem to be as bright as normal. When I stopped the car in the garage and before I turned off the car I checked to see if the headlights were working. When I turned them on the car started to kill. I quickly turned them off and the car continued to run. I finally turned the car off and now it won't start and the headlights are very dim. Has a one year old battery. Any help would be appreciated. Tom/Milwaukee

[2ManyZs]

Sounds to me like alternator or voltage regulator has died, and you were running off battery voltage.

You should be able to take the alternator off and have it tested at most of the auto parts stores before you start buying parts that you may or may not need.