[Boatanchors] Mystery Clark headset plug question

[WA5CAB at cs.com]

There was an extension cord made to use the H-70C/U with AN/PRC-47.  Has a 
U-92A/U one end and a molded U-77/U the other.  No nomenclature on the cord 
that I have but you might try Fair Radio for one.

In a message dated 08/17/2011 11:35:59 AM Central Daylight Time, 
revcom at wbsnet.org writes: 
> Ken,
> 
> What you need is a U-92A/U (TJ-102) line mounted jack for your U-93 plug.
> We got some from EDMO Dist. A while back.  www.edmo.com, see they 
> recommend
> source of Advanced Aero Supply in Greely CO.  VERY Common on aircraft
> headsets around here and were used a lot on military headsets in the '60s 
> I
> know.
> 
> 73,
> Rod
> KØEQH
> 
> 
> -----Original Message-----
> From: boatanchors-bounces at mailman.qth.net
> [mailto:boatanchors-bounces at mailman.qth.net] On Behalf Of Ken Kaplan
> Sent: Tuesday, August 16, 2011 10:26 PM
> To: boatanchors at mailman.qth.net
> Subject: [Boatanchors] Mystery Clark headset plug question
> 
> I have a David Clark H7041 headset that has a special plug. It looks 
> like a short 1/4 plug but it is actually .280 in diameter and 3/4 inch 
> long. It has 4 contacts (2 for the mic &2 for the phones). A guy in my 
> local pilots shop said it is used in helicopters but I got the headset 
> from a shop that works on fire trucks. I think it was used on either 
> their radio or intercom (or both). The pilot shop had an adapter that 
> converted it to a pair of standard 1/4 stereo plugs for $56! A picture 
> of the plug is here:
> 
> http://www.qsl.net/kb7rgg/radio/images/plug.jpg
> 
> Anyone know where I can get a socket for this plug?
> 
> 73 Ken kb7rgg
> 

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