It’s a fascinating rabbit hole, and the Soviet designers were pushing the envelope, really. Those goggles had a unique photo‑multiplier array that’s still better than most cheap models out there. I’ve spent a few nights in dusty archives finding schematics that nobody’s catalogued, and the next step would be to see how their infrared circuitry compares to modern CMOS arrays. The tech is buried, but the potential is there—if you’re willing to dig where the other archivists leave off.