History of video games/Platforms/Visulex Kit

Background
Visulex manufactured a game console kit which was meant to teach students about electronics.

Launch
According to a 1975 ad, the schematics could be ordered for $1, with a component cost of $40. By May 1976 Visulex kits were still being advertised. Given it's confirmed existence by January 1977, it is among the oldest such consoles to pursue this concept.

Media continued to feature the system through at least January 1977, and possibly longer.