Soviet Soyuz Clock Teardown
DOWNLOAD === https://urlca.com/2t7dJy
We love spacecraft and we definitely love teardowns, especially if they are for vintage devices. [Ken Shirriff] writes about taking apart the digital clock module from the Soviet Soyuz series of spacecraft and there are a lot of interesting bits to the device. After all, it has been into space.
soviets only wanted a goddamn clock that could be repared on field.Claiming that were behind, Probably at top levels is true, but for commercial stuff are pretty comparable. (especially considering chips like KM1801, and VAX not-clones)
I'm russian electronic engineer and want to add a few remarks. Actually chip name is not "Δ134 ΛБ2A" but simple 134ЛБ2А. Delta-shaped sign isn't a letter but just a triangle. The triangle sign on Soviet ICs means "handle with care", "sensible to electrostatic discharge". By default all 4000-like CMOS IC had this triangle, and in addition, some TTL chips too. In 1983 soviet chip industry had several chips for LED, VFD and LCD electronic watches, both single-chip (pMOS) from different vendors (К145ИК1901, К1016ХЛ1) and multi-chip:convenient 3-chip CMOS set (К176ИЕ12, К176 ИЕ13, К176ИД3). Soviet clock chips usually were original. But any of them never had a mil-spec version. You can see dozens of mass-market soviet electronic clocks from 1970s and 1980s here (including guts view): =0
I love vintage technology and especially vintage space electronics. Thanks Ken for the look into this amazing soyuz russian digital clock. Are there any schematics of this clock available or did you made your own during your investigations? 2b1af7f3a8