Soyuz Clock 444H
Flown Soyuz Clock Model 444H
I bought this clock at an auction (RRauction.com). It is authenticated to have been flown in a Soyux TM spacecraft, but unlike the Apollo hardware, there is no way to track a particular item number to a specific flight. There are quite a few versions of this clock. This digital clock replaces an earlier, spectacularly beautiful mechnical version.
Part 1: Discovering the inside
Part 2: Reverse engineering
Part 3: First power up
Part 4: How precise is it?
Part 5: External functions
Part 6: International Atomic Space Clock
Ken Shirriff's Reverse Engineering of the Clock Innards
Ken Shirriff reverse engineered the clock, and talked about in episode 2.
Ken Shirriff's Soyuz Clock Reverse Engineering Notes
Ken Shirriff Article about the Soyuz Clock
Soundtracks from the episodes
These are the often requested odd Russian folk sound tracks appearing in the episodes.
The original Tetris game soundtrack, as performed by my Mac SE/30 on a subtle background of disk drive rumble:
The Soviet national anthem:
Several viewers have expressed the desire to make a model and/or a 3D printed version of the clock. It's not quite fully together yet, but enough that I could get outside dimensions and a few pictures which are close to orthoscopic and should enable you to get the rest once you refer to the sketched dimensions. If you ever make a 3D model, please contact me so I can post it here.