Dolam LC-516

The LC-516, produced by Polish tube manufacturer Dolam (later known as Unitra Dolam), is pin-compatible with and visually similar to the Soviet IN-1 Nixie tube. However, unlike the IN-1, an early model with a relatively short lifespan, the LC-516 contains small amounts of mercury, which significantly improves its longevity and gives its discharge a subtle bluish tint. The LC-516 features a…