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The biggest I've built had digits just over 4 metres tall and used SCRs to control enough current to light it. It consumed just over 30W per segment. Is that big enough?
The biggest I've built had digits just over 4 metres tall and used SCRs to control enough current to light it. It consumed just over 30W per segment. Is that big enough?
I had to custom design and make it. As far as I know they are not sold anywhere.
It was for a digital clock with extra segments to allow some crude letters to be added for advertizing and it went on each side of a square tower building in a city center. With all segments on it consumed around 5KW of power!
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