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Navy Department Dual Key Control Panel - what the heck is it?
Old 07-14-2017, 07:35 PM   #1
Richard
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Default Navy Department Dual Key Control Panel - what the heck is it?

Found this at an estate sale and originally thought it might be some type of Morse code/telegraph device but I can't find anything anywhere I have looked resembling this. I can find single key devices but no dual key. It also appears to have a connection for a 230 volt cable on the back which is way more juice than a telegraph key should need. The lights at the top probably show when the lower switches are on, once the device has power. Anyone have any idea of what this is or what its function was? I've put it on eBay with a fairly high price to see if someone might contact me on it, but so far only one response from a telegraph collector who also doesn't understand the nature of the device.
Richard V
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File Type: jpg dualkey.jpg (69.9 KB, 159 views)
File Type: jpg dualkey1.jpg (100.9 KB, 160 views)
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Old 07-14-2017, 07:37 PM   #2
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More pics. I don't know what the two conical things are either. They were inside the box and are some type of rubber material. They are not hollow but rather are sealed from both sides across the diameter of the inside dimension.
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File Type: jpg dualkey2.jpg (72.1 KB, 164 views)
File Type: jpg dualkey3.jpg (68.9 KB, 162 views)
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Old 07-30-2017, 11:13 PM   #3
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Looks like this mystery will go unsolved.
Richard V
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Old 08-01-2017, 01:33 AM   #4
la5he@yahoo.no
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I think you need to go to a different Group. This one is focused on German WW2 stuff.
rgds Ragnar
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Old 08-01-2017, 09:12 AM   #5
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I've tried the US group with little result too and thought that this forum was worth a shot since most specialized fields tend to bleed over into other country's stuff every once in a while.
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Old 08-01-2017, 12:56 PM   #6
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Richard, you are absolutely in the right place, this forum is for US/UK stuff also,
as far as we have experts and time to find the answers...

The only clue i can give you right due to lack of time now is this,
browse through it, read the descriptions, no exact match but you
get it more or less... this is ship's transmitter remote key.

http://www.virhistory.com/navy/xmtr-key.htm

Read the "Transmitter control wiring".

http://www.virhistory.com/navy/xmtr-control.htm

http://www.virhistory.com/navy/xmtrs...6wire-1950.pdf

Last edited by Val; 08-01-2017 at 01:14 PM.
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Old 08-02-2017, 05:32 PM   #7
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Thanks very much for the reply and links Val. I had found that link earlier in my search and saw similar keys but they were all single and I'm still puzzled on why they would need one with two keys. In looking at the pictures in the first link a bit closer, I did finally see one of the single key units also had a connection for 230 volts, so I suppose that means they did hook up that much juice to these. It would be interesting to see one of these in use to see how a dual key would be used. Highly inconvenient for two people to use at the same time, even if one is right handed and the other is left handed.
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Old 08-02-2017, 07:30 PM   #8
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Why do you think that ships had only one transmitter?
Separate keys, separate transmitters.

And with long, long wires you need higher voltage to compensate the voltage drop. In that way you can use smaller wires. Same thing as with power lines.
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Old 08-04-2017, 07:00 PM   #9
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Interesting Val. I would have thought they might have two separate single keys rather than putting keys on one dual key box. That would have been better at preventing any issues of using the wrong key. I appreciate your input as it starts to clarify issues and makes more sense on what this is and was used for.
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Old 08-07-2017, 04:55 AM   #10
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[QUOTE=Val;7883134]Richard, you are absolutely in the right place, this forum is for US/UK stuff also,


This Group is called : Wehrmacht Uniforms and Equipment > Communications Equipment

rgds Ragnar
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Old 08-07-2017, 07:53 PM   #11
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Quote:
Originally Posted by la5he@yahoo.no View Post
This Group is called : Wehrmacht Uniforms and Equipment > Communications Equipment
So what? How does this prevent having an interesting discussions here? Over the long course of time we had lot of US/UK topics here, browse the forum.

And read what Yuri once wrote:

"Welcome to the Communication Equipment Forum. This is a place where information is exchanged about both wireless and wired communication equipment used by both the Allies and the Axis powers during the period between 1933 and 1945."

http://www.wehrmacht-awards.com/foru...99&postcount=1
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Old 08-08-2017, 07:04 AM   #12
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Chill out, its a forum! People post whatever they like, just don't expect much of discussion outside the core area of Wehrmacht communications equipment. Had it been a Kriegsmarine double key, we probably would have had plenty discussion by now!

Personally I am far more worried by the lack of posts, the WAF communications equipment section is fast becoming a dead forum.

regards,

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Old 08-08-2017, 08:06 AM   #13
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Thanks for the input. I didn't mean to start a turf war on what you can post here. I just figured if anyone is into communications equipment, regardless of the genre, the may know something about other nation's equipment as well. There really isn't a forum on the WAF which comes closer to the subject matter for which I am trying to find information. I didn't anticipate much in the way of discussion on this as I've had great difficulty finding this exact device in all my research. I appreciate the information given so far as it expands the knowledge on this piece, even if only a little.
Richard V
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Old 08-08-2017, 09:14 AM   #14
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No problem Richard, and you are right as I and many others do have some US stuff and documentation in our collections. I just have not come across the dual key so I can not help you much further. I was struck by the 115/230 Volt indications, as these are typical power supply voltages (for a large direct keyed transmitters can expect even higher voltages), not very safe with an open, all metal key. Unless the keying contacts are somehow indirectly operated and hiding in the base of the unit...

regards,

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Old 08-08-2017, 09:51 PM   #15
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Thanks very much for the additional input. I guess someone knew what it was or just wanted to have it as it sold on eBay for $250. Might be a great deal for me or, if some kind of rare bird, might be a great deal for the buyer. I appreciated everyone's input, thanks very much for the help.
Richard V
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