Hello! Marko Mäkelä wrote: > By the way: it has worked also the other way around. I have heard that > the Soviet Union used Metric 2.5mm spacing on IC cases instead of 0.1" > or 2.54mm, and that they used metric scale on aircraft altimeters while > the globally established convention is feet. I would guess that this was > deliberate, to oppose the "imperialistic" system. :) I don't believe it to be true. I have seen lots of Soviet chips (like 8080 clones, 2732 compatible EPROMs etc.) and they fit standard sockets perfectly. And with the 40 pin ones, you would have 0.8mm difference, quite noticeable. This difference in measurement systems had profound effects, however, when Soviets tried to copy American technology, because the sizes of screws and other standard parts were different and it was generally not easy (nor feasible) to produce parts with imperial sizes. That contributed to a general unreliability of Soviet systems (such as Tu-4 bomber which was nothing more than than a reverse-engineered Boeing B-29). Regards, Michau. Message was sent through the cbm-hackers mailing listReceived on 2014-04-23 10:00:08
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