It reminds me this story, which was told to me as a true story, but I wouldn't bet too much on that. A soviet bomber gets lost and finds itself over western germany. It has to land on a military airport, which pilots jovially invite the soviet pilots for a drink. While they are drinking, intelligence officers take pictures of the plane, and are laughing at antiquated soviet technology, using bulbs while the US was we…
[1] https://en.wikipedia.org/wiki/Viktor_Belenko
[2] https://en.wikipedia.org/wiki/Mikoyan-Gurevich_MiG-25#Wester...