That's a bit wild. Why the L hook then? Perhaps some planned
mating plug with a polarity hook on it that didn't become popular
enough to become a standard? Can't say I've ever seen the male
plug that would have been designed specifically to be a twist lock
rather than parallel blade to fit that, and I spent 10 years in a
plant that was full of old stuff.
I have to say I've never heard the term twist tite before and I
worked with a bunch of electricians 30 years my superior. They
always said twist lock in reference to actual twist lock and old
terminology tended to last over new. So it didn't seem to be in
their vocabulary either.
--- ---- The above comments or recommendations are SWAG. Use at your own risk. John, W9DDD
I found a 1949 electrical supply catalog with the 9213 "Twist-Tite" receptacle.
The catalog included several other styles of Twist-Tite receptacles (pages 174-175) but NO PLUGS. It says that these take standard parallel blade plugs/caps and provide greater retention. Weird - have you tried a standard parallel-blade plug?
Photos from the catalog are attached -
On Mon, Feb 21, 2022 at 5:09 AM <[email protected]> wrote:
I have an RA-87 loop supply that I’d like to resurrect but am having difficulty with the DC loop power connectors. They are Hubbell “Twist-Tite” female receptacles as seen in the attached photo. The diameter across the outer edge of the prongs is exactly 5/8”. I’m not a “Hubbell guy” … but I’m trying to learn!
TT 11-957 documents the RA-87 (see: https://archive.org/download/TM11-957/TM11-957.pdf), where Section V “Supplementary Data” references Stock No. 6Z7815, described as “Hubbell #9213 Twist-Tite”.
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