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Components and Circuits For discussions about component types, alternatives and availability, circuit configurations and modifications etc. Discussions here should be of a general nature and not about specific sets. |
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28th Jun 2009, 5:37 pm | #1 |
Tetrode
Join Date: May 2009
Location: Birmingham, UK.
Posts: 69
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Bayonet Socket for miniature lamp
Can someone tell me please where I might find a bayonet socket to fit a 9/16" base miniature bulb?
Thanks in anticipation. Bruce |
29th Jun 2009, 10:56 pm | #2 |
Dekatron
Join Date: Feb 2007
Location: Leominster, Herefordshire, UK.
Posts: 16,528
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Re: Bayonet Socket for miniature lamp
Sounds like a standard SBC (small bayonet cap) size.
In which case- any decent electrical or lighting emporium..... Chris |
30th Jun 2009, 10:15 pm | #3 |
Tetrode
Join Date: May 2009
Location: Birmingham, UK.
Posts: 69
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Re: Bayonet Socket for miniature lamp
Thanks Chris,
I seem to find only 1/2" though. |
30th Jun 2009, 10:17 pm | #4 |
Rest in Peace
Join Date: Dec 2008
Location: Burton upon Trent, East Staffordshire, UK.
Posts: 1,686
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Re: Bayonet Socket for miniature lamp
Bruce,
Is that a car size? Alan |
1st Jul 2009, 7:12 am | #5 |
Tetrode
Join Date: May 2009
Location: Birmingham, UK.
Posts: 69
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Re: Bayonet Socket for miniature lamp
Hi Alan,
Oddly enough it probably is car size. My application is for a US Hickok valve tester that uses a bulb (GE81) as a line fuse. The bulb and socket were replaced with a glass fuse/holder and I want to restore it back to the original bulb fuse setup. I did some research on the GE81 and it was also used as a car brake lamp and instrument panel light in airplanes. 6v/1.02A - it may be the same bulb as a Lucas 105. I need to mount the socket vertically where the bulb just protrudes above the panel. Thanks for any help. Bruce |
1st Jul 2009, 12:19 pm | #6 |
Retired Dormant Member
Join Date: May 2006
Location: London, UK.
Posts: 129
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Re: Bayonet Socket for miniature lamp
Aloplogies if you get two replies from me , but I think my previous one got lost owing to a computer glitch.
I was puzzled by the reference to 1/2" as I believed (and still believe) that standard sbc caps are 9/16" (or possibly 15mm). I did find an SBC lampholder marked 1/2" but I think this referred to the size of the cable entry hole. Be that as it may, the following may be of interest, especially as it refers to 1 15mm bulb: http://www.vintagecarparts.co.uk/part.phtml?PartID=2337 Barry |
1st Jul 2009, 12:46 pm | #7 |
Dekatron
Join Date: Feb 2007
Location: Leominster, Herefordshire, UK.
Posts: 16,528
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Re: Bayonet Socket for miniature lamp
Possible confusion here.... is the bulb a single contact or double contact base type?
Ordinary single filament car bulbs have a single centre contact- finding double contact 12V bulbs is a pain- BTDT! Chris Edit- just looked up GE81- it's single contact, so my original suggestion wasn't very helpful....... Looks like the vintage car parts holder has the right version available, though. Last edited by Herald1360; 1st Jul 2009 at 12:51 pm. |
1st Jul 2009, 7:37 pm | #8 |
Tetrode
Join Date: May 2009
Location: Birmingham, UK.
Posts: 69
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Re: Bayonet Socket for miniature lamp
Thanks Barry & Chris,
It was my lack of understanding that caused the confusion... 1/2" threaded entry was what I was interpreting to mean the size of the bulb socket - sorry. Thanks for the link Barry - looks to be what I need. I just need to find a bracket for a vertical mounting. |
1st Jul 2009, 8:40 pm | #9 |
Octode
Join Date: Jul 2004
Location: Dundee, UK.
Posts: 1,797
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Re: Bayonet Socket for miniature lamp
This seems to be the lamp you want, so the base is known in the UK as a Ba 15s SCC(Single Centre Contact) lamp. The nearest modern Lucas lamp is a 205, 6V 5W, See attachment.
This is probably exactly what you want, or could be easily adapted. http://www.holden.co.uk/displayprodu...&pCode=010.395 If you don't like the price, try an auto electrician who keeps lamps for trucks. Rubbolite lampholders are available a spare parts and should be readily available although they are mostly designed to slide into the cylindrical moulding in a rubber lamp or mounted on an SRBP base flange. PMM. |
2nd Jul 2009, 6:46 am | #10 |
Tetrode
Join Date: May 2009
Location: Birmingham, UK.
Posts: 69
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Re: Bayonet Socket for miniature lamp
PMM,
That's the ticket! Thanks very much indeed. Best wishes, everyone. Bruce |
2nd Jul 2009, 11:04 pm | #11 |
Octode
Join Date: Apr 2009
Location: Aylesbury, Buckinghamshire, UK.
Posts: 1,522
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Re: Bayonet Socket for miniature lamp
Ordinary single filament car bulbs have a single centre contact- finding double contact 12V bulbs is a pain- BTDT!
Chris Hi Chris, there's a commercial garage in Aylesbury that keeps 12v 2 pin bulbs in stock. PM me if you want me to post you some. Rob.
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3rd Jul 2009, 10:35 am | #12 | |
Dekatron
Join Date: Jan 2003
Location: Bradford on Avon, Wiltshire, UK.
Posts: 3,301
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Re: Bayonet Socket for miniature lamp
Quote:
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