[GreenKeys] Re: WECo 164C4 Telegraph Signal Distortion Measuring Set

Fri, 29 Aug 2003 01:24:42 EDT

Tom, Greg & Group,

The current Hubbell connectors are interchangeble/intermateable with the 
vintage one, and will plug into surface or flush mounted vintage chassis 
connectors.  However, there is a problem if the chassis connector is recessed as the 
present day cable connector bodies are at least in some cases slightly large in 
outside diameter than the originals.  And unfortunately the wall thickness of 
the cable connector bodies is or may be too thin to simply turn down in a 
lathe.  I haven't tried specifically any on TTY or other wire equipment but this 
is the case with the 110 VAC input connector for the BC-610-(*) radio 
transmitter.  Whenever I go to fleamarkets or garage/yard sales, I always keep an eye 
out for boxes of miscellaneous electrical items, usually on the ground under 
the tables.  And when I spot one, go through it for two and three-pole twist-lok 
connectors.

Another point worth keeping in mind is that although there are several 
different two and three-pole model numbers, depending on voltage and current rating, 
the physical differences are only in the male prongs and the faces of the 
plastic bodies of the female connectors.  The actual contacts inside of the 
female connectors are all the same (at least in those that I have examined).  The 
physical difference is in the location and direction of bend or turn-out of the 
polarizing key on one of the contacts.  Knowing this, I was able to "make" a 
few BC-610 power plugs a few years ago.

In a message dated 8/29/2003 12:06:19 AM Central Daylight Time, 
[email protected] writes: 
> Greg:
> 
> The Hubble twist locks are available (or at least were a couple of years
> ago) from any electrical / lighting supply house.
> 
> There are zillions of variations of twist lock connectors-just asking for a
> twist lock connector will get you the "Deer in the headlights" look from the
> person at the supply house counter.
> 
> 
> Here is a shot from Hubbell's on line catalog:
> 
> http://www.hubbellcatalog.com/wiring/section-b-datasheet.asp?PN=HBL7593V&
> FAM=Locking_Devices&P=4734,5211,373,4627
> 
> Tom
> 

Robert Downs - Houston
<http://www.wa5cab.com>
<[email protected]>

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