In 1960s Hong Kong, businesses hung dazzling signs above the streets or attached to walls in hopes of luring customers into their shops. Red, green, yellow and blue neon-lit billboards illuminated ...
For his Hackaday Prize entry, [castvee8] is making seven-segment displays out of vintage neon lamps ... a plus or minus sign, and an equals sign. It’s the beginnings of a calculator, right ...
But it’s a pretty cool rabbit hole that leads to homebrew neon seven-segment displays on ... which [Mark] did with plus-minus and equal sign modules. All of these went together into a two ...