Interesting dimmer project. What do you have for ideas?

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Old 12-07-13, 03:51 PM
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Interesting dimmer project. What do you have for ideas?

I have been making lamps lamps out of galvanized pipe and want to add a dimmer to my lamps and use a gate valve as the dimmer control. I have seen it done before and will post a link to a video of one in action. In the video, you will notice that the person did not use a gate valve, but instead, used a 1 1/4" tee fitting with a gate valve knob retrofitted.

The mechanics of it are not hard for me to understand, however, what rotary style dimmer would fit in such a small area is what is preventing me from completing this endeavor. Any help, suggestions, or comments are really appreciated. Thanks! Here is the link to the video I referred to. https://www.youtube.com/watch?v=sbht...e_gdata_player
 
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Old 12-07-13, 05:33 PM
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Your video link seems to be broken as it doesn't work.
 
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Old 12-07-13, 05:44 PM
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Old 12-07-13, 06:13 PM
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You could modify a rotary dimmer to do that but the biggest problem is the heat sink for the dimmer electronics. Dimmers need a heatsink and it must be electrically insulated from the lamp.

ZE 03 Lamp Rotary Dimmer Switch 300W 120VAC Replacement or Repair Kit | eBay

Assembled Kit AC Dimmer 500W 110V 220V Lamp Light Dimmer | eBay
 
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Old 12-07-13, 06:44 PM
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Those look like exactly what I would need. Any suggestions on heat sinks for them or how to insulate them from the pipe?
 
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Old 12-07-13, 06:49 PM
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I would most likely go with the first link (the one in the cardboard) because it is small enough to fit in the pipe. The second one says the pcb board is 1"x1.5" so I don't think it would fit inside of the pipe (1 1/4" is about as big as I want to use for the pipe)
 
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