Tree lights

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  #1  
Old 12-12-18, 07:13 AM
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Tree lights

We have a spiral christmas tree with what looks like mini lights. But there is one section that turns off every few minutes and then turn on again.
 
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Old 12-12-18, 11:09 AM
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Is there a question hiding in there somewhere?
 
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Old 12-12-18, 12:08 PM
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Just in case you aren't just telling us about your cool tree are the lights incandescent? Do you not want the section of lights to blink? If so then look for a blinking bulb in the string. They usually have a red tip.
 
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Old 12-12-18, 05:40 PM
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A "regular" incandescent miniature Christmas bulb innards has two thin wires with an approx. 1/8 inch glass bead between them and also the glowing part (the filament) between them.

A blinker bulb also has a glowing filament but has some additional parts including two nearly juxtaposed metal strips thicker than the aforementioned thin filament support wires. The complete innards occupy nearly the full length of the interior of the bulb. One blinker bulb controls several other bulbs, in some cases all of the other bulbs, in the string.

I have seen spiral Christmas trees as you described and electrically divided into several (stacked) zones that each flashed on and off independently of the other zones. Also common are two way, 3 way, 4 way, etc. strings for manual tree or house trimming where each zone consists of bulbs interspersed throughout the string with the other bulbs in other zones so as to give a more random although not truly random flashing.

Do not use a miniature Christmas light tester with a 9 volt battery. That will shorten the life of almost any bulb you try to test because almost all individual mini Christmas bulbs are rated for well under 9 volts.
 

Last edited by AllanJ; 12-12-18 at 06:04 PM.
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Old 12-17-18, 06:28 AM
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These are all interesting answers except for the question. I'll be looking more closely at the bulbs. The strand blinks too slowly to be "blinking". But maybe there is an errant bulb in there.
 
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