Iiyama Vision Master — CRT PC Monitor

The Iiyama Vision Master was the CRT line that made a Japanese brand a fixture in European computer shops — the Vision Master 1401 and 1402, and the Vision Master Pro 413, 451 and 510–514 that used Mitsubishi's Diamondtron aperture-grille tube. They were the enthusiast's alternative to Sony when a Trinitron cost more than the PC attached to it.

Surviving units run €175–400 with the median near €225, the Pro models carrying the top of that range. One thing to watch when buying: Iiyama still makes monitors. A cheap listing under the same brand is almost always a modern G-Master or ProLite flat panel rather than a CRT — read the model number, not the badge. On the tubes themselves, geometry and corner focus are what separate a good one from a tired one. Priced daily across Vinted, Marktplaats, eBay, 2dehands and Kleinanzeigen.