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sgtbrown

USN Sound-Powered Talker

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A buddy of mine has a USN talker's helmet and the sound-powered microphone and headset that goes along with it. The rig is missing the plug at the end. Can anyone put me on track of what the plug looked like?

 

Ya know, it just occurred to me my talker's rig is missing the plug, too. Duh! crying.gif

 

Tom thumbsup.gif


Learn to ride hard, shoot straight, dance well and so live that you can, if necessary, look any man in the eye and tell him to go to Hell! US Cavalry Manual, 1923

WWII APS

 

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**PLEASE NOTE: THIS COMMUNITY MEMBER HAS SADLY PASSED AWAY**

 

 

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Are you talking about this setup?

 

post-132-1175435715.jpg

 

The plug is marked PL-58, and looks like this;

 

post-132-1175435766.jpg

 

Hope this helps!

 

Regards

 

Stijn


__________________________________________________
Actively looking for demolition related items from WW2. Anything!

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Are you talking about this setup?

 

militaria_127.jpg

 

The plug is marked PL-58, and looks like this;

 

Hope this helps!

 

Regards

 

Stijn

 

There's a pair of pL-58's for sale right now on ebay - starting bid $16: click here



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The system Peace shows is actually an electric one, it has three prongs and copper electric wire. The sound powered ones use carbon wire and work on the same principal as a string and tin cans system and were used so if there was a power failure they would not lose communications. This is the one I have, there may be others. The earphones and mic are hard wired together and are marked Headset MI-2045-E and made by RCA the jack is marked Type -T-M. The jack is four inches long.

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PEACE, the setup you have pictured is not navy but a US Army signal corp item not related to navy at all and unfortunately incorrect for your display :rolleyes:

the jack you show is comaptible with the EE-8 field phones, if you have one look at the top end you will see three female holes to accept jacks, also comaptible with the signal corp BD-71 switch board among other things

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Aha,

 

thank you Dustin!

 

Talker helmet and com equipment came from the same source (out of the woodwork), so I assumed they fit together.

 

So as it stands, I'm looking for a set like QED4 shows?

 

Regards

 

Stijn


__________________________________________________
Actively looking for demolition related items from WW2. Anything!

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Peace, that is correct! sorry to bring the barer of bad news! :(

there are other variartion that than of QED shows too some are USMC with a NOM contract.One thing to look for is a contract prefix NXSR-### that would be marked on the chest mic body, that would be the indication it is forsure WWII.The navy used these I belive into today so I cannot confirm QED is a WWII piece but looks close enough but most I have seen have the NXSR contract on them.

QED can we get a better look at the bakelite body and see spec. # that would help confirm...thanks! thumbsup.gif

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Thanks guys! twothumbup.gif

 

Now we know what the darned thing looks like, anyhow.

 

Tom


Learn to ride hard, shoot straight, dance well and so live that you can, if necessary, look any man in the eye and tell him to go to Hell! US Cavalry Manual, 1923

WWII APS

 

donation2007.gifdonation2008.gif

donation2009.gifdonation2011.gif

**PLEASE NOTE: THIS COMMUNITY MEMBER HAS SADLY PASSED AWAY**

 

 

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HELLO GUY'S, IS MY TALKER ALL WW2 NAVY? PLATE ON FRONT MARKED CYU-51018, MIC. MARKED CAU-51006, STAMPED ON BACK NAVY 17. THIS IS A VERY INFORMATIVE THREAD....THANK'S, BIRDMAN

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post-619-1175536229.jpg


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Here are some more pictures of my set. I could not find a date on it any where including on the inside of the earphones and mic. Sorry the pictures did not turn out too well but I think you will get the idea.

post-55-1175548315.jpg post-55-1175548346.jpg


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birdman, your chest set is post WWII most likely korean era the designations CYU & CAU are a good indications of post war naval radio equipment.

QED, yours looks good, the spec# is consistant with WWII era naval specification numbers.

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The system Peace shows is actually an electric one, it has three prongs and copper electric wire. The sound powered ones use carbon wire and work on the same principal as a string and tin cans system and were used so if there was a power failure they would not lose communications.

 

 

The tin can and string thing worked by sending the can's vibrations down the tight string to the other can which would vibrate. That's a mechanical system but a sound powered system is electrical. Basically, in an electrical system the vibrations are sent along the wire as a pulsating voltage which causes the magnetic field in a speaker to vibrate the speaker cone/diaphragm. In the Navy's sound powered systems instead external circuits and power to generate the electrical impulses, the microphone does it all.

 

There's a wikipedia article about this and as they note:

 

"The headset microphone transducer converts sound pressure from a user's voice into a minute electrical current, which is then converted back to sound by a transducer at the other end. The number of simultaneous listeners is limited because there is no amplification of the signal. The distance between phones is also limited, however, successful testing shows that two handsets can communicate successfuly over 30 miles of 18AWG copper wire as shown during testing at Hose-McCann Communications in Deerfield Beach, Florida"

 

Standard electrical wire is used with sound powered systems, but the microphones are carbon mikes, the only ones capable of generating an electrical impulse on their own.



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I am not sure if I completely understand that but they require no outside power source or amplifier. I meet a guy that had two set that were connected together, I am not sure if it was an actual connector or just something he rigged up but he put on one set and I put on the other and there was nothing between us but wire and I could hear everything he said.


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One of the purposes behind "sound-powered" systems is that in the event that electrical power is lost onboard ship you can still communicate. The "circuitry" in a sound-powered set needs no outside power source and it converts sound waves into an electrical signal that is carried thru the wires to another headset.

 

I recently retired from civil service after 30 years working for the Navy. I wish I had paid more attention to the sound-powered system still in use to see if they had changed any from what these pictures show.

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By the way... Does anyone know a source for the aforementioned correct plug?

 

Tom thumbsup.gif


Learn to ride hard, shoot straight, dance well and so live that you can, if necessary, look any man in the eye and tell him to go to Hell! US Cavalry Manual, 1923

WWII APS

 

donation2007.gifdonation2008.gif

donation2009.gifdonation2011.gif

**PLEASE NOTE: THIS COMMUNITY MEMBER HAS SADLY PASSED AWAY**

 

 

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Thanks guys! twothumbup.gif

 

Now we know what the darned thing looks like, anyhow.

 

Tom

 

Ahoy Sgt Brown,

 

That depends on your friends SP phone rig - there are 'small can' and 'large can' phones. Also, there are male WWII plugs & female (postwar to present) SP phones & plugs.

 

After WWII, USN Sound Powered phones changed from the male plug (which was easy to bend & damage) to a female plug. Basically, they just changed the direction of the connectors on the cords & sockets. Both work fine, but there are several manufacturers of USN Deck Talker sound powered phones.

 

This is the postwar plug on an ISC Telephonics Corporation SA-7C

SP_Phones_004.jpg

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And this is an US Instrument (USI) Type H200/U sound powered set. They are the most prevalent, having been bought out by Stromberg Carlson/General Dynamics.

 

I think I'll start a USN Sound Powered phone topic to show some examples that I have.

SP_Phones_007.jpg

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Hello all...first time poster with a question about my Stromberg-Carlson H200/U talker. Is there a method to determine the age of the unit? I've attached a few pics and the contract number appears as "N00104-74-D-C276". Also, Stromberg-Carlson No "702019-393" and Stock "5963-247-0725". I picked it up during an estate sale a few years ago. Any help you can provide is greatly appreciated!

 

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