Won an eBay auction for a classic white faced IBM wall clock. Has standard AC plug. The works have a circuit attached consisting of a vacuum tube, a few caps, 2 coils and a solenoid. The model is a 56-45. From what I can find it has the capability to correct itself after a power failure for up to 12 hours.
When plugged in the sweep second hand runs up to 12 then stops. Then the minute hand starts advancing at an accelerated rate with the hour hand following at the corresponding rate. After advancing a few hours the sweep hand starts and the clock starts running normally.
Now the problem. There is no way to set the clock. I am beginning to think this clock needs some external method to set it and then it runs on its own.
It appears it was made before Zip codes. The label on the back says New York, 22, NY
Ideas?