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Vintage Telephony and Telecomms Vintage Telephones, Telephony and Telecomms Equipment |
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9th Dec 2017, 5:47 pm | #1 |
Heptode
Join Date: Jan 2009
Location: West Lothian, UK.
Posts: 762
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Small (8" * 6.5") panel with dial etc
Trying to thin-out some junk and a couple of items seem telephone-related but I have no idea if they are of interest. Might just turn out to be a source of BA screws...
The panel has a red, green and white light (6v wedge lamps) two push buttons and three key switches - one "lockable". Some labels refer to "tape"?
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George |
9th Dec 2017, 6:13 pm | #2 |
Octode
Join Date: Mar 2011
Location: Sheffield, South Yorkshire, UK.
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Re: Small (8" * 6.5") panel with dial etc
Certainly some handy parts on it if nothing else.
Maybe it was from a location where telephone calls were recorded. |
9th Dec 2017, 6:36 pm | #3 |
Dekatron
Join Date: Nov 2003
Location: Heckmondwike, West Yorkshire, UK.
Posts: 9,643
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Re: Small (8" * 6.5") panel with dial etc
Telex?
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9th Dec 2017, 8:12 pm | #4 |
Heptode
Join Date: Jan 2009
Location: West Lothian, UK.
Posts: 762
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Re: Small (8" * 6.5") panel with dial etc
Ah - that would make sense, and probably explains the other hunk of junk which contains a number of relays plus a Carpenter high speed type. Will post pictures of it tomorrow.
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George |
9th Dec 2017, 9:06 pm | #5 |
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Re: Small (8" * 6.5") panel with dial etc
Indeed. It's the "J BELL" which gives it away. Sending this character caused a bell to ring at the distant teleprinter to attract the operator's attention.
The tape would have been a punched paper tape.
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Graham. Forum Moderator Reach for your meter before you reach for your soldering iron. |
10th Dec 2017, 5:31 pm | #6 |
Heptode
Join Date: Jan 2009
Location: West Lothian, UK.
Posts: 762
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Re: Small (8" * 6.5") panel with dial etc
Duh! Now I remember - it came from an old ICI explosives factory where I occupied a building in the 70s-80s. I also acquired the associated Creed 7B and used it for several years for RTTY.
The relay unit I mentioned was in the large grey box under the desk shown halfway down this page:- http://www.ringbell.co.uk/ukwmo/Page233.htm
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George |
10th Dec 2017, 7:33 pm | #7 |
Dekatron
Join Date: Apr 2012
Location: Wiltshire, UK.
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Re: Small (8" * 6.5") panel with dial etc
I remember going on a day's course on how to set up those Carpenter bipolar relays [and coming away with the relevant set of feeler- and tension-gauges].
Thankfully in the early-1980s they were replaced with sealed relays and/or solid-state flipflops [using CV7004 and CV7007 transistors]. |
11th Dec 2017, 7:30 am | #8 |
Dekatron
Join Date: Jul 2007
Location: Penrith, Cumbria, UK.
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Re: Small (8" * 6.5") panel with dial etc
That relay rack is the same (but with different functionality) as those in the control section of a Marconi B6122 / BD272 HF transmitter. There were three mounted side-by-side.
And they used Carpenter relays! In the valve and HT overload circuitry. Still got some tension gauges kicking around somewhere.
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