Testing a clock

[copper67440]

66-67 Coronet. Can I just ground the body and go right to power off the battery?

 

[69Bee]

The cluster is regulated with a point type limiter providing about 5v. It would be just as easy to use a 4-battery holder and run it off of 6v (4 1.5v AA batterys in series).

 

[copper67440]

In the dash it's connected right to the amp gauge positive.

 

[bigmanjbmopar]

Yes u can ground the case and use 12v + on the batt to test

 

[copper67440]

Thanks

 

[A383Wing]

The cluster is regulated with a point type limiter providing about 5v. It would be just as easy to use a 4-battery holder and run it off of 6v (4 1.5v AA batterys in series).

not the clock..the clock runs off of 12v battery power. The other gauges run off 5v regulated voltage

Bryan

 

[Pistol Pete]

The cluster is regulated with a point type limiter providing about 5v. It would be just as easy to use a 4-battery holder and run it off of 6v (4 1.5v AA batterys in series).

You could run 6v. to the clock, but it will tell you the time yesterday. :icon_tongue:

 

[Meep-Meep]

Yep, the clocks are 12V but they are not a constant draw. There is a solenoid in there and a set of points that put power to the coil when closed. The coil power creates a magnetic field that forces the points open and winds a spring. The unwinding of the spring is what makes the clock move. As the mechanism winds down the moveable points contact gets closer to the fixed contact, and as soon as they touch, the circuit is completed and the solenoid pops and starts the whole cycle over again.

 

[Photon440]

Although running from 12V, it will operate with less. I used a normal 9V transistor radio battery to test mine and it worked just fine.