This looks like one of those projects that started out as a glimmer of an idea and led down a rabbit hole. But it’s a pretty cool rabbit hole that leads to homebrew neon seven-segment displays on a ...

October 26, 2025 • NPR's Ayesha Rascoe plays the puzzle with KPBS listener Tony Mangina of San Diego, California, along with Weekend Edition Puzzlemaster Will Shortz.