Neat. Their products are amazingly expensive, though. Depending on your definition that might actually be the second largest. Philips built neon displays that visually look exactly like Nixie tubes that were much larger. Those are technically different: a Nixie tube uses multiple electrodes shaped like the shapes you want, enclosed in a single gas-filled enclosure. The big Philips displays are multiple regular neon discharge tubes (like the ones used on advertising signs) enclosed in a transparent shell shaped like a tube.
These were used at the Evoluon museum in Eindhoven for the daily visitor counter. They were installed in the main hall, on the railing of the first balcony. I'm not sure of their size, but I would guess 3 feet or so high. paul > On Aug 17, 2023, at 4:39 AM, Holm Tiffe via cctalk <cctalk@classiccmp.org> > wrote: > > > ...only for a look.. > > https://www.daliborfarny.com/project/h-nixie-tube/