3-way Lamps - My Headache - Electrical - DIY Chatroom Home Improvement Forum


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Old 04-15-2007, 08:14 PM   #1
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3-way lamps - my headache


I'm resorting to a forum for ideas.

We live in a 100 year old house that has an active mix of knob and tube and updated wiring. Either I'm one unlucky lamp buyer, or I have a problem that I don't understand.

3-way (30/70/100 watts) lamps do not work in my house.

I have at least 5 of them and they all default to either the 70 or 100 watt setting. I have one that works for a few days, but then it too will stop working properly.

I'm a novice DIY'er with basic skills in wiring. I don't understand how the mix of the old knob and tube may be playing havoc with my lamps.

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Old 04-16-2007, 05:32 AM   #2
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3-way lamps - my headache


I suspect that your problem is not the type of wiring, but either higher than normal voltage, or vibration of the bulb, while the light is turned on.

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