A while back, [limpfish] bought a few four-digit seven-segment displays from a seller on eBay. A month or two later, thirty displays ended up in [limpfish]’s mailbox. Instead of using the one or ...

The seven-segment displays were laid out in the frame and the common anodes of the LED filaments ... one of the four DS8880 VFD driver chips. The anode wires form a lacy filigree behind the ...