Author Topic: Left-Hand Thread Medium (E-26) Base Lamp ?  (Read 1300 times)
wide-lite 1000
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Left-Hand Thread Medium (E-26) Base Lamp ? « on: April 19, 2020, 01:13:49 PM » Author: wide-lite 1000
My old (1980 + 1984) GE & Sylvania catalogs both list a 100w 120v A-19 inside frost incandescent lamp with a Left-Hand Thread Medium (E-26)  base  ??? :poof:  What would this have been used for and has anyone ever seen one . GE is code 100A/LHT and Sylvania is code 100A/4.  Sylvania also listed this base as available in 25- 150 watt .

ANY IDEAS ??? ???
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Bottled lightning
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Re: Left-Hand Thread Medium (E-26) Base Lamp ? « Reply #1 on: April 19, 2020, 01:37:54 PM » Author: Bottled lightning
I think it was to keep people from stealing the bulbs, here’s some for sale   https://www.ebay.com/itm/VTG-lot-of-3-Marbled-Bakelite-Left-Thread-Light-Sockets-Factory-Industial-Lamp-/124130844586
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Re: Left-Hand Thread Medium (E-26) Base Lamp ? « Reply #2 on: April 19, 2020, 01:42:02 PM » Author: wide-lite 1000
Makes sense !
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Re: Left-Hand Thread Medium (E-26) Base Lamp ? « Reply #3 on: April 19, 2020, 01:55:53 PM » Author: Lumex120
I have heard that these are sometimes used in hotels to keep people from stealing the bulbs, which apparently is an issue.
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Rommie
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Re: Left-Hand Thread Medium (E-26) Base Lamp ? « Reply #4 on: April 19, 2020, 02:42:36 PM » Author: Rommie
LH thread lamps were apparently used in situations where people might steal the bulbs, such as trains, etc. I'd love to get some, I've seen them but where do you get the lampholders..?
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Mr. Orthosilicate
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Re: Left-Hand Thread Medium (E-26) Base Lamp ? « Reply #5 on: April 19, 2020, 04:08:58 PM » Author: Mr. Orthosilicate
I think they also used left handed bulbs for temporary lighting in some situations. I’ve found the catalog number for one type of left hand socket: Leviton calls their’s 157-x, and it looks like a temporary lighting socket.
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Re: Left-Hand Thread Medium (E-26) Base Lamp ? « Reply #6 on: June 10, 2020, 09:01:49 PM » Author: Meme Pods
They also have them on amazon
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