Re: Lamps for lamp limiters
Traffic light bulbs were ES as Winston has already posted but I doubt there are any of these left in service now they were thin on the ground in the late 1970s. These were fitted to what we called tin lanterns that date back to before the war.
The Mellor signal head introduced in around 1969 used a 12v 50W capsule halogen bulb.
In the case of tin and Mellor the lens dictated the colour the bulbs give white light.
Of course most signals have moved to LED
The move to LED started around 20 years ago but virtually all new installations have been LED for more than 10 years.
Cheers
Mike T
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Invisible airwaves crackle with life or at least they used to
Mike T BVWS member.
www.cossor.co.uk
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