[TMC] [R-390] CV591 power connector

[Nick England]

Clarification - the 3-wire grounded-type twist-lock female plug will
NOT work in the 2-wire male receptacle.
The 3-wire plug is larger than the 2-wire.

The 2-wire female twist-lock plug should be a NEMA ML-1R (Hubbell
HBL7464V) - the back shell and strain relief don't look like the old
kind, but should be much better. I have not tried these since I still
have enough of the old brown style.

The 3-wire female twist-lock plug should be a NEMA ML-2R (Hubbell
HBL7593 or HBL7593V) - I am NOT sure about that since two Hubbell data
sheets seem to contradict each other!

See http://www.hubbellcatalog.com/wiring/catalogpages/Page-B05.pdf

And a warning - the 3-wire MS connector on earlier CV-591A (TMC MSR)
is wired differently from those on later ones and on all other
military gear I have come across! The standard is ground on pin B, but
TMC didn't do it that way on early CV-591A for some reason. I have
changed all my CV-591A connectors to conform to the standard.

Cheers,
Nick K4NYW

>
> On May 19, 2012, at 10:34 AM, "Alan Chandler" <alanchandler at frontier.com> wrote:
>
>> Hello to the list.
>>
>> I am looking for the small two conductor twist lock power connector used on
>> some of the CV591A SSB converters.  These were also used on some of the
>> older test equipment too.  I have two of the 591A and one uses this twist
>> lock and the other is an MS series.
>>
>>
>>
>> TIA
>>
>> 73, Alan - K6RFK
>>