Did they mention "metric" chips and circuit boards? Soviets were using 2.5 mm pitch instead of 2.54 mm. So parts were not interchangeable and there was no much

Did they mention "metric" chips and circuit boards? Soviets were using 2.5 mm pitch instead of 2.54 mm. So parts were not interchangeable and there was no much international demand for non-standard components. In 1970s Soviet SN7400's were very cheap (in Finland at least) but you had to twist them legs sideways, which was annoying and potentially harmful.