Fw: [GreenKeys] RE: Dovetron has arrived!

Fri, 10 Oct 2003 20:08:07 EDT

Group,

When someone earlier described the exotic power cable and connector, I 
assumed that they really were (exotic).  But if these units use the same AC 
connector as the CV-89, then there is nothing exotic about it and they really aren't 
that hard to find if you know who to ask.  They were, as Roy says, commonly 
used on many military sets (including test equipment) from the late 40's through 
the 70's.

Anyway, I have the connectors, Bill Perry has them, Ace Electronics here in 
Houston has them, even Newark still carries them last time I checked.  The most 
common nomeclature is MS3106A-14S-7S.  -1S also works, although these haven't 
been made it 40-50 years.  Plus appropriate cable clamp and boot.  This is 
the straight connector.  MS3108... would be right angle.  The "A" could also be 
"B" (indexable clamp) or "E" (environmental seal).  And if the connector was 
made prior to about 1949, "MS" will be "AN".

One more comment.  As Roy also mentioned, if you use the original power 
connector, be sure to check which pin is ground.  This is usually pin B but I've 
seen at least one case where it wasn't.  Tripped the breaker (yeah, I didn't 
check).

In a message dated 10/10/2003 11:00:22 AM Central Daylight Time, 
[email protected] writes: 
> I have a picture of a Tempest Dovetron here that shows a more or less 
> common three pin chassis mount male connector common to many military power 
> cords.  Glad to send the picture to anyone.
> 
> These connectors are not all that easy to find but can be located.  Most 
> likely we can get REALLY specific in identifying the thing for folks who 
> want to search for one, or even look at hamfests or the like for the 
> correct cable mount connector or assembled line cord.
> 
> NOTE!  Certain military line cords had a slightly different connection in 
> these connectors, so check the pin connections before you use any cord you 
> may find.   The CV-89 is one example of a unit that used this cord.
> 
> >If you don't have a need for the
> >CIA/Government shielding, I'd yank it out and install a standard PC socket
> >and use a PC power cord. Looks like an easy job.
> 
> Yes, but it involves metal work, drilling and such.  Better to find the 
> right connector if you can, in my opinion.
> 

73
Robert Downs - Houston
<http://www.wa5cab.com>
<[email protected]>

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