nick123 Posted November 30, 2009 Share Posted November 30, 2009 Maybe this should be obvious or doesn't matter, but one of the patt 123's I'm overhauling has the stepped face of the lens facing in instead of out as usual, and I'm wondering why. I'm thinking perhaps that it was replaced or removed at some point and whoever put it back simply got it wrong, but wondered if there could be more to it. Link to comment Share on other sites More sharing options...
paulears Posted November 30, 2009 Share Posted November 30, 2009 Nope - whip it out and put it back in the other way. Link to comment Share on other sites More sharing options...
nick123 Posted November 30, 2009 Author Share Posted November 30, 2009 Nope - whip it out and put it back in the other way. Thanks. I expect people have found worse, but the amount of dust in these units is pretty terrible. Lamps with pools of dust on them, the steps of the wrong way round lens choked with dust, the inside and reflectors coated with dust. I recokon at least a decade of neglect and possibly rather more. Link to comment Share on other sites More sharing options...
tony g Posted November 30, 2009 Share Posted November 30, 2009 Nope - whip it out and put it back in the other way. Thanks. I expect people have found worse, but the amount of dust in these units is pretty terrible. Lamps with pools of dust on them, the steps of the wrong way round lens choked with dust, the inside and reflectors coated with dust. I recokon at least a decade of neglect and possibly rather more. Dust and dirt is the most common cause of low output from old fixtures, a good dust out, polish the reflector with duraglit (brasso) and fit a halogen lamp, you will find the 123s have a new lease of life, I can confirm that Strand never fitted the lenses back to front, someone was probably trying something out but what I don't know!!, you may find the lenses have a slight yellow cast to them that can also slightly reduce the light output, this is caused by the mesothorium or radium (depending on the age and glass maker, more likely mesothorium in stage lantern glass) that is an ingredient of optical glass decaying, forming oxides if the uranium series (this is used to make yellow dyes and paints) , it can be eliminated by leaving the lenses on white paper in bright sunlight for a week or so. Link to comment Share on other sites More sharing options...
Paul J Need Posted November 30, 2009 Share Posted November 30, 2009 PROBABLY A Health & Safety instruction from the local council....... afraid people will cut themselves on the sharp edges ??? HEHEHEHEHE Link to comment Share on other sites More sharing options...
gyro_gearloose Posted December 1, 2009 Share Posted December 1, 2009 Don't ETC Parnel lenses curve inwards? Maybe whoever reversed the lens on your 123 saw one and thought that all lenses had to be that way round. Link to comment Share on other sites More sharing options...
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