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Vintage Amateur and Military Radio Amateur/military receivers and transmitters, morse, and any other related vintage comms equipment. |
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12th Jan 2018, 2:55 pm | #21 | |
Dekatron
Join Date: Apr 2012
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Re: Unusual Switch Panel
Quote:
Perhaps a guest room phone number selector for a hotel? |
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12th Jan 2018, 3:10 pm | #22 |
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Re: Unusual Switch Panel
How would that work?
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12th Jan 2018, 3:12 pm | #23 |
Dekatron
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Re: Unusual Switch Panel
I would guess that it would be a patch cord panel with an operator.
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12th Jan 2018, 3:18 pm | #24 |
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Re: Unusual Switch Panel
Each switch has two fixings, one of which is also a terminal. So by external sequential "testing" of columns and rows it would be possible to determine the position of every switch.
The question is what would then be done with that information?
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12th Jan 2018, 3:24 pm | #25 | |
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Re: Unusual Switch Panel
Quote:
I don't see how that fits in with the switch panel shown though.
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13th Jan 2018, 8:53 pm | #26 |
Dekatron
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Re: Unusual Switch Panel
As we are just speculating, when I first saw it, my initial reaction was that it reminded me of a darts or billiards scoreboard, or one of those mechanical pocket calculators we had in the '60s.
Not that I really think it's any of those. Incidentally, I've tried Google and Tineye image searches, and come up with nothing.
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27th Feb 2018, 5:11 pm | #27 |
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Re: Unusual Switch Panel
My first reaction is that it is part of a telephone exchange. The switches are numbered "0" to "9" like a dial, and the switch actuating handles do not look like they are designed to be manipulated by a human. Anyway, the chances of making a mistake when using such a panel would be huge. The "wipers" of the switches appear to be via solder tags on screws on the back, and the other connections are from PCB tracks which appear to be in parallel behind the switch front enclosure - so each switch is a simple slider switch with ten possible positions. The construction quality of such an item would be good but I would have expected some kind of marking were it for the GPO.
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1st Mar 2018, 8:42 pm | #28 |
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Re: Unusual Switch Panel
UK dials were numbered 1 to 0 anti-clockwise with the zero sending out 10 pulses.
Except I believe in New Zealand where they were numbered 9, 8. 7, through to 0.
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1st Mar 2018, 10:40 pm | #29 |
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Re: Unusual Switch Panel
My first thoughts took me to the Plug Board or Stecker Board of the Enigma.
https://www.codesandciphers.org.uk/e...a2.htm#details John G4IJD
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1st Mar 2018, 10:43 pm | #30 |
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Re: Unusual Switch Panel
Another wild guess. Something for programming organ stop presets. My hammond has a patch panel behind the rear cover for programming drawbar values onto preset keys so that whole banks of settings can be recalled by a single press of a key. In the case of the Hammond they are done by moving jumpers.
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28th Mar 2018, 6:09 pm | #32 |
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Re: Unusual Switch Panel
We had lots of these ( Siemens No. 17 motor uniselectors ) for hunting for a free trunk circuit and were told that they were used by the RAF. Also that when a lot were needed in a hurry, retired ladies from the original factory were reemployed and their skills surprised the management of the time. I always wondered what the use was. Pity they burnt out so often. link :- http://www.samhallas.co.uk/repositor..._motor_uni.pdf Cliff.
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