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Discussion Starter · #1 ·
This 1964 214 has external power connections. Is this a mod or standard version? Should 1.35 V DC be applied to posts?

Do positive and negative connection positions matter?

Should this clock work with a battery off no eternal power is supplied?

Any help appreciated.
 

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It is not externally powered. They had battery powered versions (like yours) and ones with external power sources. Those terminals send a signal for timing purposes. They were commonly used in aircraft for surveillance camera taking timed interval pictures and fitted to munitions.
 

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As Jake said these should work with an internal battery. It looks like a TE-13, which had a number of options, one of which is an external power option. I would be taking the back off to see what those odd looking terminals connect to.
 
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