Plessey 'Mellor' Traffic Signal
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- Опубликовано: 9 фев 2025
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This video features the operation of a Plessey-made UK traffic signal that is produced to the specification of designer David Mellor in the late 1960s. I believe that this is a 1980s' example (Plessey would be bought out by Siemens in 1989), and as well as the standard red and amber aspects, it also features a green 'Turn Right' arrow aspect, along with a regulatory sign depicting the same. With this signal being designed for running 50 Watt halogen lamps for the three aspects, the rather nostalgic fade in and out operation of the lamps is experienced - something that modern LED signal heads do not feature, as is seen in the second part of this video, where LED lamps are used instead of the halogen capsules.
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It won't last, I can assure you!
Awesome, I have a traffic Pedestrian Siemens signal from the same seller! I would love one of these Mellors to go with it, but they are huge! The LED conversion lamps you put in this don't look too bad with the signal, would be cool if they did it with some of the public ones that still remain in good condition around the UK without replacing the entire head which would surely cost more! The fade-in lamps are definitely more nicer and nostalgic though! ;)
Yeah, I hadn't quite appreciated the size that we were talking when I bought this one - in its boxed form, it took up about the entire porch and only just fitted through the door! It would be interesting to see examples out on the road using the LED lamps (even if converting the green arrow was a faff) - I don't know if the damp conditions would cause premature failure, mind you; the red and amber optics aren't terribly well sealed. Absolutely, the fade is the classic look - I hate modern Pelican crossings (not that they're all that common - Puffins seem preferable nowadays) as the flashing amber LED just looks so wrong!
@@StreetLightOnline I'm very tempted to get one, as I have the pedestrian signal and the wait push button box, therefore I'd have the full set together! I find the 38 automatic sequences quite cool as you can just let it do It's cycle by itself as my pedestrian one only has a switch at the back😅.The LED siemens traffic lights here I find too bright compared to the soft fade-in halogen ones, some here are really glarey! I do agree though, the flashing amber does look strange and quite annoying too from It's speedy bright flashing! At least with your Mellor, the optics make it rather nice on the eye, and at first you wouldn't even notice It's LED!
I wonder if the sequencer includes a routine for a pedestrian signal head - you could simulate a crossing sequence quite easily. The beams are certainly stronger nowadays - I believe that modern regulations require a higher brightness than was permitted formerly, but the drawback is that this then worsens the glare, as you have noticed. Indeed, the Mellor offers a far easier experience on the eye!