[GreenKeys] RA87 and BE-77A connection question

[WA5CAB at cs.com]

As to why the RA-87 uses the twist lock and the BE-77-A the crow's foot, I 
can't say.  Both were commonly used on 115 VDC circuits in the 30's and 
40's.  Find a Hubbel catalog and ID the connectors.  Up until at least a few 
years ago, they were both still listed.  ID the twist lock by the voltage and 
current ratings.  That determines the nature of the pin with the offset key.  
You're lucky that you need a male twist lock.  If you had to mate to a 
recessed male, you could probably find the same part number but the body would 
be too large in diameter.

Another source that used to yield AC line cord plugs for the BC-610 
(opposite gender) .was garage sales - boxes of electrical fittings usually found 
sitting on the ground under the tables.  Also, if you find what at first 
glance is the correct twist lock plug but it won't fit, it will be because it's 
keyed differently.  You can dissasemble the female and cut a keyway in the 
face.  The internal parts were all the same.  Only the socket face was 
different.

In a message dated 12/16/2012 10:49:12 AM Central Standard Time, 
gary.schulz at ubnt.com writes: 
> Hi, 
> 
> I am in the process of re-capping an RA87 rectifier and also looking at 
> connecting a brand new BE-77A line unit to the rectifier.  These two are 
> designed to be connected together however they have completely different DC 
> power connectors.  I will attempt to attach pictures of each.  In case the 
> pictures don't make it, why does the BE-77A have a crows foot flat 3 prong 
> connector and the RA87 has a 2 pin twist lock.  I am really trying to keep 
> this stuff original and not hack up anything.  I am really puzzled because 
> these two are designed to mate together.
>  
> 
> I can find neither the crows foot connector (receptacle that I could just 
> put on the end of a tethered adapter) nor can I find a 2 prong twist lock.
>  
> 
> What do you guys recommend?  The only thing I can come up with is 
> replacing all the connectors which is unfortunate.
>  
> 
> Ideas?
> 
> 
> Gary Schulz
> WB9YIR
> 

Robert Downs - Houston
wa5cab dot com (Web Store)
MVPA 9480
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