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General Vintage Technology Discussions For general discussions about vintage radio and other vintage electronics etc. |
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28th Aug 2022, 1:59 am | #21 |
Heptode
Join Date: May 2010
Location: Warminster, Wiltshire, UK.
Posts: 682
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Re: Can you help identifying these lamps
I thought I should do the obvious thing .Try one . Although the voltage is 14 volt they are quite bright going down to 10 volt. Andy
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28th Aug 2022, 6:15 pm | #22 |
Octode
Join Date: Oct 2011
Location: Wrexham, North Wales, UK.
Posts: 1,457
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Re: Can you help identifying these lamps
The first thing that entered my mind was airfield lighting, 14V is common as is 28V but the bayonet cap suggests otherwise.
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8th Sep 2022, 3:21 pm | #23 | |
Nonode
Join Date: Jan 2010
Location: North Somerset, UK.
Posts: 2,124
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Re: Can you help identifying these lamps
Quote:
Christmas or other decoration bulbs of about the bulb size illustrated usually have smaller caps such as SBC or SES. That is what made me think of military or wartime civilian use. Such as interior lighting of a bus or railway carriage. Would have to be BC to be a drop in replacement for the peacetime 12/14 volt 20 watt lamps. |
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8th Sep 2022, 4:51 pm | #24 |
Dekatron
Join Date: Jun 2005
Location: Warnham, West Sussex. 10 miles south of DORKING.
Posts: 9,142
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Re: Can you help identifying these lamps
Gerry used to have a large wooden drawer labelled 'Nasty Bulbs'! It contained all sorts of odd bases, sizes, shapes, colours and voltages. It was fascinating to sort through.
There must have been thousands more for all special needs. My guess is advertising sign, the letters picked out by the small bulbs. John. |
14th Sep 2022, 5:27 pm | #25 |
Octode
Join Date: Mar 2006
Location: Co. Durham, UK.
Posts: 1,111
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Re: Can you help identifying these lamps
They are identical in appearance to ordinary coloured sign lamps.
The voltage is the oddity. Most shop/theatre signs are 240v. It isn't usual to run them in series strings, for the obvious reason that the whole sign goes out when one lamp fails. Fourteen volts is suspiciously like what you might find across a nominal 12v. lead-acid accumulator when on charge... |
14th Sep 2022, 10:52 pm | #26 |
Heptode
Join Date: May 2010
Location: Warminster, Wiltshire, UK.
Posts: 682
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Re: Can you help identifying these lamps
I thought someone would know straight away and this would be a simple challenge. Some good ideas but know one knows for sure . Andy
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15th Sep 2022, 2:11 pm | #27 |
Dekatron
Join Date: May 2010
Location: Greater Manchester, UK.
Posts: 18,668
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Re: Can you help identifying these lamps
Carnival parade float festoons would be my guess.
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