Anglepoise/ Luxo inspection lamp proble

Replace or shorten the springs, or do what I did as a temporary measure (years ago and it's still there) stick a pen bewteen the two top springs and the top of the upper arm!

Ron

I have two genuine Terry's Anglepoise lamps, both of which go back many years. Both of them suffer as you describe occasionally, but I have always found that re-tightening the Nyloc nuts at the joints, cures mine for another year or so. I wonder if that's because the 'head' on the lamp weighs a lot less than on the magnifier version ? Do radio studios suffer a similar problem ? They seem to use exactly the same arm mechanism for presenters' mics, and I would guess that some of them with spring mounts and baffles, must be as heavy as the magnifier lamp heads.

Arfa

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That seems to work. In effect stretching the springs a bit. I chopped off a bit of 12 mm hard/high temp hotmelt glue stick and cable-tied in place, a tie around a loop of each spring. Pen barrel was not big enough

Incidently for the usual "domestic" source of hotmelt glue sticks , usually no temp indication. Low melt ones , start melting at 90 degree c, translucent or dyestuff coloured ones that easily double over in the length of

195mm requiring a force of about 1Kg (on set of scales). High temperature ones tend to be naturally creamy colour , melting at 150 degree C, and much stiffer to bend, about 2.5Kg over 195mm length.

-- Diverse Devices, Southampton, England electronic hints and repair briefs , schematics/manuals list on

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Surely audio studios have the springs in either Anglepoise, far reach suspension, or microphone , local suspension, replaced with bungee which is naturally damping. The last thing you need attached to a microphone is a twangy resonant springline. Going by the racket that comes off my Anglepoise in normal use.

-- Diverse Devices, Southampton, England electronic hints and repair briefs , schematics/manuals list on

The microphone sits inside a cradle suspended by thin elestic bungees

All that agro over the years, just for the want of 1.5 inches of hotmelt glue stick, 2 cable ties and a tap washer. It now lives up to the name anglepoise.

-- Diverse Devices, Southampton, England electronic hints and repair briefs , schematics/manuals list on

Tie some elastic through and round the springs. With care you can tune this so the thing stays in position. Been doing this for years with anglepoise mic stands.

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*We waste time, so you don\'t have to *

    Dave Plowman        dave@davenoise.co.uk           London SW
                  To e-mail, change noise into sound.

Thats all I do with mine, Just tighten the nuts at the joints ! The same with the Ledu magnifier lamp. I have noticed that over the years the metal has started to erode at the joints.

I did a repair for a friend who's lamp broke at one of the joints, by inserting a short length of solid bar inside the square tube. I glued it in place with super glue after drilling the through hole.

You have to get the nuts tightened just right or it won't adjust at all. I ended up putting fiber washers between the faces so that it would move and stay put.

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Best Regards:
                     Baron.