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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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7th Oct 2020, 7:56 pm | #1 |
Hexode
Join Date: Oct 2010
Location: Box End, Beds. UK.
Posts: 271
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Lamp for elderly anglepoise light
I have an elderly anglepoise light, that works perfectly for normal incandescent 60W lamps, but new compact fluorescent and LED lamps are heavier, so it upsets the balance. I have tried adjusting the spring tensions, but can't get the adjustment to go far enough. Has anyone got and ideas, or know of particularly light weight low energy lamps?
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7th Oct 2020, 8:00 pm | #2 |
Nonode
Join Date: Aug 2010
Location: Resolven, Wales; and Bristol, England
Posts: 2,608
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Re: Lamp for elderly anglepoise light
I have used halogen lamps in my Anglepoise, I usually have to wind a bit of solder around the stem to make it heavier.
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7th Oct 2020, 8:11 pm | #3 |
Nonode
Join Date: Aug 2007
Location: South Bradford, West Yorkshire, UK.
Posts: 2,573
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Re: Lamp for elderly anglepoise light
I recently repaired my old Anglepoise lamp and also found that the normal type of LED bulb was too heavy for it. However I've found that a filament style LED bulb is lighter and allows it to be adjusted just like the old incandescent bulb
Keith |
7th Oct 2020, 8:32 pm | #4 |
Dekatron
Join Date: Apr 2012
Location: Wiltshire, UK.
Posts: 13,996
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Re: Lamp for elderly anglepoise light
Can you not 'nip up' or otherwise shim the pivots to add some extra hysteresis? Must admit, in the days when I had an Anglepoise-esque microscope-lamp I found it rather annoying because over a few hours it would invariably 'creep' from wherever I had positioned it.
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7th Oct 2020, 9:49 pm | #5 |
Octode
Join Date: Dec 2017
Location: Morden, Surrey, UK.
Posts: 1,557
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Re: Lamp for elderly anglepoise light
I have this problem with my benchlight which is a former drawing board light. I put a carpentry clamp on the rear strut which helped a lot but perfection was achieved by placing a Hatfield 50 ohm switchable attenuator on top of the clamp.
I appreciate this solution may not be ideal for everyone. |
7th Oct 2020, 10:19 pm | #6 |
Dekatron
Join Date: Sep 2005
Location: Seaford, East Sussex, UK.
Posts: 5,997
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Re: Lamp for elderly anglepoise light
The LED candle bulbs are lighter.
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7th Oct 2020, 10:36 pm | #7 |
Nonode
Join Date: Jan 2010
Location: North Somerset, UK.
Posts: 2,129
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Re: Lamp for elderly anglepoise light
Agree that an LED filament bulb is worth a try, never weighed one, but subjectively they weigh no more than incandescent bulbs.
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8th Oct 2020, 12:18 am | #8 |
Dekatron
Join Date: Feb 2007
Location: Leominster, Herefordshire, UK.
Posts: 16,535
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Re: Lamp for elderly anglepoise light
I found that a GU10-bayonet adaptor plus a LED GU10 downlighter bulb work ok for me, thoiugh having checked some weights it would seem that was just luck- the GU10 combo weighs 100g and a 60W GLS tungsten is 30g. A cheap LED GLS bulb is close at 38g.
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8th Oct 2020, 8:02 am | #9 |
Nonode
Join Date: Jun 2016
Location: Bognor Regis, West Sussex, UK.
Posts: 2,294
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Re: Lamp for elderly anglepoise light
I have three old type anglepoise lamps and I find the LED bulbs from Poundland are smaller and lighter and do not upset the balance.
Peter |
8th Oct 2020, 8:49 am | #10 |
Dekatron
Join Date: Jan 2005
Location: Oxford, UK.
Posts: 17,843
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Re: Lamp for elderly anglepoise light
Philips LED bulbs work well in mine. The Osram ones are far too heavy.
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8th Oct 2020, 1:41 pm | #11 |
Nonode
Join Date: Aug 2007
Location: South Bradford, West Yorkshire, UK.
Posts: 2,573
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Re: Lamp for elderly anglepoise light
I compared the weights of three lamps on our "highly accurate" kitchen scales.
Incandescent approx 40g LED approx 80g LED filament approx 37g The lamp works as expected when either the incandescent or the LED filament, shown in the attachment, is fitted. Keith |
8th Oct 2020, 2:33 pm | #12 |
Octode
Join Date: Mar 2006
Location: Co. Durham, UK.
Posts: 1,116
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Re: Lamp for elderly anglepoise light
Pearl LED filament lamps are available, which give a good representation of a normal tungsten lamp.
I tend to use the original type lamp in 'collectors' type fittings, unless the heat is liable to increase decay of elderly bakelite or rubber. |
8th Oct 2020, 10:13 pm | #13 |
Dekatron
Join Date: Jan 2012
Location: Brentwood, Essex, UK.
Posts: 5,337
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Re: Lamp for elderly anglepoise light
In the British Standard for GLS lamps, two of the things specified for each wattage were bulb diameter and distance of light centre from base. In later prodution, many manufacturers used smaller glass envelopes with a corresponding shift of the light centre towards the base, which affected the beam produced by lamps like the Anglepoise that use a reflector to produce their beam. The last types sold by Tesco proudly proclaimed that using less glass was better for the environment, but as they were about the same size as golfball low wattage bulbs the bases of their 100W bulbs ran much hotter. I too did experiment with LEDs and GU10-based lamps in adaptors and had the same problem with their heavier weights. Fortunately I have more than enough old-style bulbs for my Anglepoises to see me out.
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11th Oct 2020, 11:38 am | #14 |
Nonode
Join Date: Nov 2016
Location: Aberaeron, Ceredigion, Wales, UK.
Posts: 2,883
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Re: Lamp for elderly anglepoise light
I do what G6tanuki suggests, it’s not perfect but it does the job.
John. |
11th Oct 2020, 11:44 am | #15 |
Banned
Join Date: Oct 2015
Location: Cornwall, UK.
Posts: 849
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Re: Lamp for elderly anglepoise light
I had similar issues with anglepoise bulbs, my thread here may help.
https://www.vintage-radio.net/forum/...d.php?t=149487 |
11th Oct 2020, 1:24 pm | #16 |
Octode
Join Date: May 2016
Location: Oxfordshire/Bucks borders, UK.
Posts: 1,604
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Re: Lamp for elderly anglepoise light
These are good and very light, if you'll pardon the pun
https://www.ikea.com/gb/en/p/ryet-le...hite-70441284/
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11th Oct 2020, 8:02 pm | #17 |
Hexode
Join Date: Oct 2010
Location: Box End, Beds. UK.
Posts: 271
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Re: Lamp for elderly anglepoise light
Thank you all. I bought an LED filament lamp and indeed it balances perfectly. A minor point, but exactly how do these lamps work; from what little I can see it contains no electronics?
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11th Oct 2020, 8:24 pm | #18 |
Tetrode
Join Date: Oct 2020
Location: Maldon, Essex, UK.
Posts: 60
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Re: Lamp for elderly anglepoise light
Thanks all now I know why my lamp can't keep it's head off the bench since I fitted a low energy bulb and I know what to do to keep it up!
Many thanks again and regards from Derek G0VDV |
11th Oct 2020, 9:38 pm | #19 |
Dekatron
Join Date: Feb 2007
Location: Leominster, Herefordshire, UK.
Posts: 16,535
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Re: Lamp for elderly anglepoise light
None or very little? It could be as little as one capacitor if there are one or two pairs of inverse parallel connected series LED strings.
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11th Oct 2020, 11:56 pm | #20 |
Dekatron
Join Date: Apr 2012
Location: Worksop, Nottinghamshire, UK.
Posts: 5,553
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Re: Lamp for elderly anglepoise light
Those filament LEDs are a later version of one of these.
They were a mains voltage Luxon Star that were on the market for a short time about 10 years ago when LED lamps were very expensive. You can look through the lens and see the links between 4 60V chains of chips on the die. These later filament lamps are much easier to see with there clear glass envelopes and very visible chains of chips. The home made ones with the single die are mostly still soldiering on now at 8 hours a day in some cases. Two failures over 10 lamps over about 8 years aint bad. |