Zhishiguan SZ-8

The SZ-8 is a medium-sized Nixie tube manufactured by the Chinese company Zhishiguan (somtimes called Universe). Among the few Nixie tube models produced in China, the SZ-8 is by far the most common. Alongside the Soviet Union, China was one of the last countries to continue manufacturing Nixie tubes in significant quantities into the early 1980s. Visually and electrically, the SZ-8 resembles…