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Other Vintage Household Electrical or Electromechanical Items For discussions about other vintage (over 25 years old) electrical and electromechanical household items. See the sticky thread for details. |
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25th Feb 2020, 5:16 pm | #21 |
Heptode
Join Date: Nov 2009
Location: Scarborough, North Yorkshire, UK.
Posts: 510
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Re: Unusual 2 Amp socket
Back in the late 50's we were fitting those 3 pin 2 amp sockets directly into a cut out in the skirting board for table lamps. The wiring REGS weren't like they are today and earth wire was just bare copper wire, no green/yellow. To have the installation tested by EMEB was free, but 7/6 for a retest. Don't remember ever measuring the Megger output voltage or having it calibrated either.
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25th Feb 2020, 5:17 pm | #22 |
Heptode
Join Date: Nov 2009
Location: Scarborough, North Yorkshire, UK.
Posts: 510
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Re: Unusual 2 Amp socket
Should have been late 40's not 50's
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25th Feb 2020, 5:42 pm | #23 |
Moderator
Join Date: Dec 2010
Location: Exeter, Devon and Poole, Dorset UK.
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Re: Unusual 2 Amp socket
Whilst looking for something else entirely I came across this one a 5A example from Crabtree.
Cheers Mike T
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25th Feb 2020, 6:09 pm | #24 |
Dekatron
Join Date: Mar 2008
Location: St. Frajou, l'Isle en Dodon, Haute Garonne, France.(Previously: Ellesmere Port, Cheshire, UK.)
Posts: 3,184
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Re: Unusual 2 Amp socket
Hi, And thanks for all the interesting replies.
On the subject of early flush sockets, I remembered that I had this one. 2 amps and with an unusual angled socket, maybe to keep the flex clear of the carpet? It was made by 'Efesca' with a 'walnut duroid' finish. it's new and unused and still in its box. Cheers, Pete.
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25th Feb 2020, 9:07 pm | #25 |
Dekatron
Join Date: Jun 2009
Location: Staffordshire Moorlands, UK.
Posts: 5,273
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Re: Unusual 2 Amp socket
Definitely for flush mounting. The surface mounting back boxes were bakelite. We forget how well made these old back boxes were in those days. The modern ones usually deform with just the weight of a woodscrew unless the aperture is perfectly milled.
MK part number for the socket: 2990/502 flush steel backbox: 2080 (1954 catalogue)
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26th Feb 2020, 4:04 pm | #26 |
Rest in Peace
Join Date: Apr 2008
Location: London, UK.
Posts: 2,508
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Re: Unusual 2 Amp socket
Folded steel backboxes such as Teetoon shows, where the faceplate overhangs the box, were always for flush mounting as per McMurdo. Metalclad boxes designed for surface mounting are seamless deep-drawn and have rounded corners and an exact mating line with the faceplate edge. Both flush and surface cast-iron boxes existed too, as well as bakelite surface types.
The depth of the box reflects the larger sockets that could be fitted, e.g. 5A BS and possibly even MK's proprietary gauge 15A (which was smaller in pin footprint than BS gauge), and that sockets suitable for DC had deeper tumbler switch actions instead of micro-break as in this AC-only type. The earth continuity to the screw eye enabled the socket to be earthed by default when the back box was earthed via a conduit system, i.e. there was no separate CPC to terminate in the socket. Conversely, the back box would be earthed by default when the socket was earthed via the cable. |
27th Feb 2020, 12:01 am | #27 |
Dekatron
Join Date: Apr 2012
Location: Worksop, Nottinghamshire, UK.
Posts: 5,554
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Re: Unusual 2 Amp socket
The surface mounted ones sure do have rounded corners.
Here is a photo of a Bakelite one. |