Shroomy Posted April 8, 2018 Share Posted April 8, 2018 (edited) Looking for the best example of working cordinated 00 gauge traffic lights please For road traffic Edited April 8, 2018 by Shroomy Link to comment Share on other sites More sharing options...
Horsetan Posted April 10, 2018 Share Posted April 10, 2018 (edited) You might have a problem with that. In the 1960s, the two principal designs of traffic signal head were the ATE/Plessey "tin lantern" and the cast iron SGE with its distinctive light bowls on stalks Neither design is available in working form in 4mm scale. There are dummy SGEs available from Hornby, and an approximation of a "tin lantern" from Langley Models. The SGE would be particularly difficult to do because each aspect is effectively free-standing. Edited April 10, 2018 by Horsetan Link to comment Share on other sites More sharing options...
PatB Posted April 11, 2018 Share Posted April 11, 2018 (edited) The SGE might be possible (and I do stress "might") using very fine fibre optics feeding aspects carved from perspex. Not exactly a rtp solution though, even if it worked. Edited April 11, 2018 by PatB Link to comment Share on other sites More sharing options...
Shroomy Posted April 11, 2018 Author Share Posted April 11, 2018 Thank you for replies Link to comment Share on other sites More sharing options...
Horsetan Posted April 11, 2018 Share Posted April 11, 2018 The SGE might be possible (and I do stress "might") using very fine fibre optics feeding aspects carved from perspex.... I can see where you're going with that, though there might be some concerns over whether sufficient light actually appears at the lens bowl end. Here's a shot of SGEs in Singapore, where they were especially long-lived: The spindly nature of the lens bowls on stalks feeding into the post "head" would need skilled manufacture in 4mm scale. For something that looks so delicate, the SGE heads were actually very heavy, being cast-iron. I used to own a couple of decommissioned examples, and lifting them single-handed was just asking for trouble! 2 Link to comment Share on other sites More sharing options...
PatB Posted April 11, 2018 Share Posted April 11, 2018 I can see where you're going with that, though there might be some concerns over whether sufficient light actually appears at the lens bowl end. Here's a shot of SGEs in Singapore, where they were especially long-lived: The spindly nature of the lens bowls on stalks feeding into the post "head" would need skilled manufacture in 4mm scale. For something that looks so delicate, the SGE heads were actually very heavy, being cast-iron. I used to own a couple of decommissioned examples, and lifting them single-handed was just asking for trouble! Indeed, getting enough photons through a small enough fibre optic would be my concern too. I suspect that anything actually buildable would, at least, end up somewhat overscale. Link to comment Share on other sites More sharing options...
Horsetan Posted April 11, 2018 Share Posted April 11, 2018 .... I suspect that anything actually buildable would, at least, end up somewhat overscale. Use of Nano LEDs might be a possibility, though. Link to comment Share on other sites More sharing options...
Shroomy Posted April 11, 2018 Author Share Posted April 11, 2018 This was the closet I could find yet to test but don’t look to far away I think Link to comment Share on other sites More sharing options...
Horsetan Posted April 11, 2018 Share Posted April 11, 2018 These are HO, and somewhat finer Link to comment Share on other sites More sharing options...
RMweb Gold russ p Posted April 11, 2018 RMweb Gold Share Posted April 11, 2018 I remember SGEs when did they disappear in the UK? Link to comment Share on other sites More sharing options...
Horsetan Posted April 11, 2018 Share Posted April 11, 2018 (edited) I remember SGEs when did they disappear in the UK?They were gone from London by 1984. Ireland still had some in operation until 2004. Singapore's last ones were in operation in 2008, but gone by 2011. Zimbabwe still has SGEs in various states of disrepair in and around Bulawayo. Edited April 11, 2018 by Horsetan Link to comment Share on other sites More sharing options...
RMweb Premium New Haven Neil Posted April 12, 2018 RMweb Premium Share Posted April 12, 2018 I have a pair of the Plessey ones - just got them out of the loft to take to our Nephew's to decorate his new garage! I can measure/photograph if anyone needs? 2 Link to comment Share on other sites More sharing options...
Horsetan Posted April 12, 2018 Share Posted April 12, 2018 I have a pair of the Plessey ones - just got them out of the loft to take to our Nephew's to decorate his new garage! I can measure/photograph if anyone needs? Ah, another traffic signal collector..... Link to comment Share on other sites More sharing options...
RMweb Premium New Haven Neil Posted April 13, 2018 RMweb Premium Share Posted April 13, 2018 Ah, another traffic signal collector..... It's a long story! Had them for years. One has electronics in so that it cycles through the correct light sequence, done by a friend that understands these things! Link to comment Share on other sites More sharing options...
Horsetan Posted April 13, 2018 Share Posted April 13, 2018 It's a long story! Had them for years. One has electronics in so that it cycles through the correct light sequence, done by a friend that understands these things! You can buy ready-made circuits that will do all the hard work. There's an excellent US eBay supplier - Legacy, I think they're called - who provided me with a UK-sequence board; works on 220/240v a treat, and the timings are fully adjustable. The same board also does a number of other sequences. 1 Link to comment Share on other sites More sharing options...
RMweb Premium New Haven Neil Posted April 13, 2018 RMweb Premium Share Posted April 13, 2018 You can buy ready-made circuits that will do all the hard work. There's an excellent US eBay supplier - Legacy, I think they're called - who provided me with a UK-sequence board; works on 220/240v a treat, and the timings are fully adjustable. The same board also does a number of other sequences. This was done 25 years ago! Both sets had them but one is kaput, the other still works! I'll investigate Legacy thanks Ivan, so Stevie can get the other set working. They're going in his new garage to keep his Corrado VR6 'weekend car' company. 1 Link to comment Share on other sites More sharing options...
Horsetan Posted April 13, 2018 Share Posted April 13, 2018 .... I'll investigate Legacy... Correction: the trader is called "liberty3guo" (run by a Chinese fella, I'd surmise), and always has a number of different traffic light control boards for sale, usually about £25 to £30 plus international postage. Best of all, they send you the correct input voltage version for the customer's country, so you don't have to specify it. All you need to do is ask them for the board that reproduces the UK sequence. Link to comment Share on other sites More sharing options...
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