ПЗ - means "приемка заказчика" or "customer acceptance". It means that someone from the customer side was physically present when the unit was released from the manufacturer.
5:32: I think I can explain the "interesting oddity" of the dot after the 1. I believe that's to more unambiguously distinguish a 10 from 01. Keep in mind that a cosmonaut may be looking at the display upside down, and there it might otherwise be easy to get confused. The hour display does not have a separate segment for two-digit numbers, and the dot is only really needed on the right-hand side, next to the one. Or at least that's my theory. I have no inside knowledge.
But why near 1, when 6 and 9 really needs it? :D ("Lotto" - russian bingo - has these dots near ambigous nubers like 6/9, 68/86/89 previews.123rf.com/images/artex131071/artex1310711604/artex131071160400010/55386196-game-russian-lotto-bingo-play-on-a-white-background.jpg )
@@КусаниеКрасногоКоня there is 00 not 60? It wraps at 60 so things like 61,62, 93 etc. Are not valid numbers? There would be ambiguity with 60, 06 only, but seems like there is no 60 either, only 00
@@AngDavies Interestingly, they also designed their "5" to be highly asymmetrical, which probably helps ensure 05 cannot be confused with an upside down 50. See shortly after 2:29. Between this and making dangerous input difficult, I think a lot of very smart thought went into the ergonomics of this clock.
I personally think its a hole. look at how clearly defined its edges are compared tot he printed one. I have no idea why it would need a hole there, but 99% certain its a hole and not a printed mark.
ОТК is quality assurance by the manufacturer. ПЗ is acceptance by the customer. Only the cool gadgets are marked "ПЗ", such as airspace/military/atomic/government/special stuff. The rest is ОТК only. Basically, ПЗ is a quality control officer employed by the customer and on permanent assignment at the manufacturing plant. Their job is to ensure the processes, raw materials, workmanship, alignment and resulting products are up to spec, partly independently of the manufacturer.
Не факт, что тут "ПЗ" - смущает разная высота символов. It couldn't be for sure that it's "ПЗ" - the different height of characters is a bit confusing.
@@r2daw158 По виду у них просто не было штампа и они посимвольно проштамповали универсальной приспособой. It looks like they didn't have a special stamp ready and they used a universal one (probably a wheel one) to stamp everything. I recall in the nineties when some papers were still done on manual typewriters they would sometimes use numbers for letters too.
@@artej11 numbers on letters - this is twofold. On regular typewriters there were often no digits 3 and 0, those were to be typed as capital letters 3 and О respectively. On the other hand, teletypes had a full digit series 1234567890, but lacked the literal Ч, so 4 had to be used instead. This is can be seen even today in РЖД (railway) telegrams.
Не просто засветился а помог товарищу из США с тонкостями перевода с русского языка. Американцам тяжелее пользоваться русским, чем нам английским. Мир! Труд! Май!
Let's all give a big hand for CuriousMarc for this fabulous series of videos honouring this fantastic piece of engineering and demonstrating it in his own Curious way bringing two rivalling worlds together. Thank you Marc 👏🏻👏🏻👏🏻
You forget to add the link in the description :P I miss the mechanism which reset chronometer counters.. How does it happen? A spring-loaded system? I really love the interior of soviet clock mechanisms.. I disassembled many old clocks in my childhood.. :)
And yes, I really wanted to know what was under the bezel, but that involved taking off sealed green screws. And maybe even the hands, which I am not equipped for.
@@CuriousMarc I tried in my childhood to unscrew some of that sealed screws on some decommissioned soviet kind-of-military equipment. Chance to do it was 40% - most screws were made from soft metal, and it's much more easy to break screw head, than to unscrew it.
You missed the chance of a lifetime! You could have shamelessly rickrolled each and every single one of us with that custom alarm sound.... That would have been an epic twist and would in my humble opinion have been much, much funnier than the cuckoo clock sound effect. Nevertheless thanks you for the great video! The engineering prowess displayed by the designer and fabricator is simply incredible, such craftsmanship! These military quality spacefaring electronical/electromechanical timing contraptions are always a treat and incredible to watch!
Big Clive: Let's hook this up to the Hopi meter. Mr. Carlson: Let's hook this up to the current-limited variac. Curious Marc: Let's hook this up to the ATOMIC CLOCK. Me: ...why do I subscribe to so many electronics channels? :D
Somehow doubt the mechanical clock noise would be a worry on a Soyuz, as if all you can hear is that clock, and not the dozens of screaming fans, running pumps and inverters providing all the AC buses, you are either on the ground attached to a broken test set, or if you are flying, you are about to have a really bad rest of your life, short as it is.
The star on seal means Military acceptance. There were goods for military usage and general usage in USSR. Military type components were similar to industrial/space type in USA or Europe. Military requirements were much striker than general. If a general type product slightly doesn't match to the requirements it usually go to shops. But it was unacceptable for military type products. Key visual difference of military type is star or rhombus on them. You saw rhombus on many components into electronic Soyuz clock. Original name of this requirements is "Военная приемка" (Military acceptance).
A common question for implementing watch/clock mechanical complications, and/or basic timing functions, is how to maintain position of the gear train (hand position) between timing events (escapement, ratchet, etc.) in the presence of expected dynamic forces. On earth we are only dealing with gravity, but a wrist watch is moved and tilted, which is addressed by the watch constant force drive train from the spring to the escapement. This arrangement reduces gear backlash effects (hands bouncing) and also resists gravity errors regardless of orientation (although timing error is orientation specific). For a mechanical clock to go into space in the presence of high G forces the 1/2 second ratchet wheel must locked in position after being advanced. This mechanism must produce a great deal of force (as compared to earthly clocks) to unlock, move and relock the ratchet wheel. This is why the solenoids are so huge.
Great video! Loved it. There is a reason the clock is loud though.. It is not a flaw, but more seen as a feature. It's so during any manual maneuvers that are counted in seconds, they don't miss one! Humans do much better with more than one form of feedback. Visual and audio feedback combined are the best delivery methods for a majority of us. Combined, those effects are compounded, and highly efficient compared with responses to the effects individually. When you are moving at 14,000kph, 5 seconds VS 7 seconds is pretty important. That's all speculation though. I have absolutely no idea if that was in mind, or if the clock was even in the control cabin lol.
Amazing video, thank you! On a side note - the time stopping function is not a Chronometer, it is a Chronograph. Chronometer is something like a precision standard.
the wires are wrapped in a PTFE (teflon) sheet, also the wire isolation material is the same; sausage made of wires is called "жгут". those are the best oxygen-free copper wires for signal paths, still in use for a modern military equipment.
3:25: Interesting to note: There is a little ridge (or tongue or nub, or whatever the correct technical term is) inside the otherwise round 19-pin male connector. If there weren't, then it would be possible to plug in the cable connector rotated by any multiple of 60 degrees. And of course, only one of the then possible six positions would be correct. The keying of the connector takes care of that. So much attention to detail on this thing. It's very impressive. PS: Does the riveted grey cup hide another connector, and does that mean that several of these secondary clocks could have been daisy-chained? PPS: Oh, no, I'm stupid, 10:24 shows that that's not the case. That cup covers the protruding part of the BFS (Big Forceful Solenoid). See 12:23.
the sequence of the buttons remind me the GRAFCET state and transitions scheme, wildly used on PLC's programming. To have a transition to the next state you have to complete the current state, once the conditions are done the program go to the next state. Nice job as always Marc!.
small point - the stopwatch function is called a Chronograph, not a Chronometer. A chronometer is a watch which meets a high standard of timekeeping, as in marine chronometer. A chronograph is a complication / function of a timepiece which records elapsed time. Technically chronographs should be called chronoscopes, but they are referred to as chronographs for historical reasons.
I'm just tickled seeing that System Start button. 20 some years ago I saw it at Halted Electronics but at that time I didn't know I was getting it for you. You've done what I hoped I could have done with it. OK, that's it. I'm not going to comment about it anymore...Cool! Or should I say прохладно!
A lot of design and good taste in these two devices, very subtle within the practicality itself. I love the sound of the actuator from minutes to hours, and the actuator itself, the label itself. The combination and the end result are fucking perfect for my taste :p Thanks to the channel for these luxurious explanations and their details.
EI dit not know zhat zhe siberian cuckoo vos zhe orrritshin of zhe Kuckuck-clock sount! Zhanks for zet inside! …you had me roaring with laughter, Marc! Effing great video about a really beautiful piece of engineering!
I wager it was size concerns that led to this thing being taken out of mothballs to be used in the Buran shuttle. I bet that loud ticking was also a feature: It would be helpful in hearing it over background noise/comm traffic.
For sure the sound wasn't just a byproduct. I have seen electromagnetic clocks made in USSR (mostly industrial applications like belt timings and sorting stuff) that are whisper quiet. You would never know they're working were it not for a rotating red knob. Russians are extremely purpose oriented designers, doubly so in the aerospace area. If it's there, on the front end, it has a reason.
8:14 - Thanks, man!=) I was sure it was going to jump, that's why I was disappointed. But, now I know that it's smooth, just like it works on the main clock face. Thanks again for pointing it out for me.
Interesting. I think I actually get how you'd use it now: the mission time is not reset during flight of course, but the chronometer is presumably for crew use for things like "fire thrusters for 4 minutes 32 seconds", right? And alarm for normal things like wake-up and prep for burns and such. This is a great advancement for me, I couldn't figure out why there would be all the various displays and functions in the digital one. Presumably the omission of hours on the digital chronometer is no great loss if the things being timed are less than 100 minutes, and perhaps even easier for durations longer than 59 minutes
So, since it's incapable of regulating itself, is it really a clock? The timing pulses are being driven in by something else. So isn't it more like a complex mechanical counter?
In the terms of clock types, it's a secondary clock, which gets the count pulses from the primary clock. You need one primary clock, which will drive some number of secondary clocks - this system was widely-spread on soviet manufactures when you need to broadcast the same time through all buildings. As a result, the secondary clock is just a simple stepper motor and some gears for it, all-time precision comes from the primary clock mechanism. which might be sourced from a balance wheel or a cesium clock.
I think a lot of older bedside clocks were regulated by the AC oscillating frequency from the power source. They would run faster or slower if the frequency was not in spec (60hz US, 50hz Europe). I suspect this Soyuz clock is much the same way.
@@ironhead2008 As we are talking about Soyuz clock's external time source - it must not be AC line - the AC frequency in the autonomous power system (e.g. aero and space) is never stable.
You could consider it a "Slave Clock" like the ones used in schools. They are driven by a master clock. In fact, Marc's flip clock is one of those "Slave" clocks for a factory where they had a master clock feeding it pulses.
Also, on some ICs and other components you will see a rhombus symbol. This means the part passed military acceptance criteria. Those parts could be released for public use, but parts without that sign could not be used in military gear.
Fun fact: 0:23 is not an actual orbiter, but "equivalent airplane", similar airframe equipped with four turbojets and capable of runway takeoff for testing and crew training. You can see four turbojet instruments in the top center of picture and also throttle controls :)
Yes, but the clock remained in the actual flown model ; see (terrible) pictures at the bottom of this page : www.buran.fr/bourane-buran/bourane-consti-reacteur.php Notice the space orbiter had provision for fitting two jet engines, one on each side of the vertical stabiliser although it never flew such equipped, hence the two throttles seen on the picture (instead of four throttles on the equivalent airplane).
That is so fantastic - I want that clock in my studio/workshop/spare bedroom!!!!!! Guess I'll just have to make do with watching your video, cheers Marc :-)
Synchronicity: I have been Dust videos on TH-cam. Tonight I watched Voskhod. A doomed cosmonaut communicates with an isolated man in the wilderness in the 60s. Radio communication. Communication. It's what we are about. Thank you #CuriousMarc for making me aware of and valuing the Soviet efforts in space.
Can you imagine trying to sleep inside the Soyuz with something that loud? Something that looks like it was designed by Don Marin? "TICK-KABOINKLED-TICK-KABOINKLED-TICK-KABOINKLED-TICK-KABOINKLED..."
I wonder if the reason they used it in the buran was because it was a prototype? They might have snuck in some surplus parts until they finalised the design. The state of the digital clock suggests to me that they probably salvaged and refurbished some components for reuse in later flights which makes sense since the Soyuz is single use. Avionics are expensive.
The alarm indicator appeared to turn on about 1.5 seconds before the set alarm time and was on about 1.5 seconds past the 30 second mark on the clock face for a total on time of about 33 seconds.
The Russians (and other Eastern block folk) who built the space program were extremely purpose oriented folk. If something exists, then, it exists with a certain reason behind. So the noisy nature is not a bug, it's a feature. I've seen plenty of electromagnetic/electromechanical same era industrial applications where the mechanism was whisper quiet, and the only tell, was a red (or green) knob, rotating with the main assembly. I'm confident that the loud mechanism had a reason, either for logistic aspects or for psychological ones, but it certainly wasn't a fault. P.S. shame what happened to the shuttle. :\
Another amazing video, you sir are doing great deeds to science by documenting these amazing engineering marvels. Many of these devices and processes would be lost history. PS, I told my wife that it would be a ckoo-ckoo clock noise lol.
So I do understand that this mechanical time indicator is doing its job just fine. I do also know that the sovjets were very reluctant to change working things. So why do they went to the effort and replace a proven and perfectly working mechanical time indicator by a vastly more complicated digital one? The only thing that comes to mind is that the ticking of the mechanical indicator must have driven the crews nuts!
I think machining all these gears, shafts and rockers, veryifying its geometrical tolerances is more expensive and time-consuming, that soldering in dozens of identical standard logic chips.
Could be the optics. The Space Race wasn’t just about true achievements but also about keeping up appearances against each other. Between an “old fashioned” mechanical unit or a cutting-edge digital one, just having the latter in publicity could have been a priority for the Ministries involved.
"ПЗ 7" ПЗ (PZ) is abbreviation of Представитель Заказчика -- Customer Representative. Where Customer is Ministry of Defence. All devices should be checked by both OTK -- factory internal control and PZ -- external military control.
9:40 OTK is not "output control department", Artem got his language wires crossed. Otdel is department, the other two word are "technical control". I can understand why Artem misspoke and said "output" but I don't think I can explain... as a Russian speaker it feels like a natural mistake. Anyway here's the wikipedia entry: en.wikipedia.org/wiki/Technical_Control_Department
I bet those marks on the totalizer wheels have something to do with setting time on it, something related to bypassing the lower digits so you can set the higher ones more quickly. Otherwise, turning that knob to advance 1 minute at a time for days worth of mission time would get very old very fast. Since someone said it's a hole, could it be that you would stick a pin through it to stop it turning and there's a mechanism to in this case translate the motion over to the next wheel over? Could also be a some sort of actuator inside the wheel that the pin would push on and move it so that the gearing bypasses the normal wheel. I'm not sure why it would be on the 1 and not the 0 in this case, however.
I don't know if it's apocryphal, but I've heard that Russian ejection seats are the envy of others due to their reliability. They, too, are clockwork rather than electronic so still work when nothing else does.
Could the dot on the "1" be to differentiate easily between 1 and 7? I'm assuming conditions would likely be less than optimal at times making reading the counters difficult in low oxygen/frosted environments?
Marc, I think the dot near the 1 is actually a hole. Look at how clearly defined the edge of the "dot" is compared to the printed 1 next to it. Why print such a clean edge on a dot but not the numbers? You would need to get a flashlight up close to know for sure but I think that's what it is, a hole. Maybe its an alignment hole for the milling process? Maybe the other numbered rotors used a different method for alignment and thus no holes? in the footage you inserted of the day counter you can clearly see the "dot" is darker than the printed 1, that would seem to me to mean that its not reflecting light because its a hole. Again you would need to get a closer look with a light, but it really seems like a hole.
It **IS** a hole. Looking at it with the bino, you can look right through it and into the plate a far bit behind it. It does not appear to register to anything, at least when into view. Maybe used by the reset mechanism? But then why don't we see it in the hours wheel? Mystery remains!
@@CuriousMarc You know I had a feeling. Glad to hear it's confirmed. As for why its not present on the hour, I can't say for sure, but I still think its for alignment at some stage of the manufacturing.
You could wire the lights on the chronometer buttons so that only the function that you can activate is lit. So for example the “reset” light would light the start button, the “start” light would light the stop button etc. If you reduce the solenoid driving voltage could you soften the slamming of the solenoids?
Agree on the buttons! I considered that for a while but it would have required changing a lot more of the wiring inside the prop and I was already behind. Makes explaining more difficult too. But it’s the better user interface for sure. On the solenoids, if you reduce the voltage it just stops all of a sudden. Or see the reverse in the previous video when it starts, I am just raising the voltage slowly. And it goes straight from not working to quite noisy.
What am I missing - all the efforts to hinder resetting or changing critical settings, and the whole thing can be turned off with a front mounted toggle switch?
"Who needs electronics when you have gears...?" When you have gears indeed! These kinds of machines were remarkable for their time and consisted of cogs and gears. On with the video! www.fi.edu/history-resources/automaton
9:42 closer equivalent for "ОТК" (Отдел Технического Контроля) is "quality control department". "ОТК" it's basically "QC passed" mark.
And "ОТК" mark is manufacturer QC, but "ПЗ" (Приемка Заказчика) is customer QC mark
Great stuff Marc! Time seems to pass faster while watching your video's.... I think that Cesium standard is to blame :^)
Cool its Mr Carlson btw this is great content isn't it
2 of my favorite electronic masters of everything in the same place. You both are Ubers.
Mr. Carlson vs. Curious Marc: the crossover that nobody asked for but everyone wanted
@@davidgildegomezperez4364 This needs to happen.
ПЗ - means "приемка заказчика" or "customer acceptance". It means that someone from the customer side was physically present when the unit was released from the manufacturer.
Не приёмка, а представитель
@@lasvisiпричем тут представитель?
5:32: I think I can explain the "interesting oddity" of the dot after the 1. I believe that's to more unambiguously distinguish a 10 from 01. Keep in mind that a cosmonaut may be looking at the display upside down, and there it might otherwise be easy to get confused. The hour display does not have a separate segment for two-digit numbers, and the dot is only really needed on the right-hand side, next to the one. Or at least that's my theory. I have no inside knowledge.
But why near 1, when 6 and 9 really needs it? :D
("Lotto" - russian bingo - has these dots near ambigous nubers like 6/9, 68/86/89 previews.123rf.com/images/artex131071/artex1310711604/artex131071160400010/55386196-game-russian-lotto-bingo-play-on-a-white-background.jpg )
Insightful observation.
@@КусаниеКрасногоКоня there is 00 not 60? It wraps at 60 so things like 61,62, 93 etc. Are not valid numbers? There would be ambiguity with 60, 06 only, but seems like there is no 60 either, only 00
@@AngDavies Interestingly, they also designed their "5" to be highly asymmetrical, which probably helps ensure 05 cannot be confused with an upside down 50. See shortly after 2:29. Between this and making dangerous input difficult, I think a lot of very smart thought went into the ergonomics of this clock.
I personally think its a hole. look at how clearly defined its edges are compared tot he printed one. I have no idea why it would need a hole there, but 99% certain its a hole and not a printed mark.
ОТК is quality assurance by the manufacturer.
ПЗ is acceptance by the customer.
Only the cool gadgets are marked "ПЗ", such as airspace/military/atomic/government/special stuff. The rest is ОТК only.
Basically, ПЗ is a quality control officer employed by the customer and on permanent assignment at the manufacturing plant. Their job is to ensure the processes, raw materials, workmanship, alignment and resulting products are up to spec, partly independently of the manufacturer.
Приёмка заказчика?
This comment needs to be bumped.
@@artej11 exactly :)
Не факт, что тут "ПЗ" - смущает разная высота символов.
It couldn't be for sure that it's "ПЗ" - the different height of characters is a bit confusing.
@@r2daw158 По виду у них просто не было штампа и они посимвольно проштамповали универсальной приспособой.
It looks like they didn't have a special stamp ready and they used a universal one (probably a wheel one) to stamp everything. I recall in the nineties when some papers were still done on manual typewriters they would sometimes use numbers for letters too.
@@artej11 numbers on letters - this is twofold. On regular typewriters there were often no digits 3 and 0, those were to be typed as capital letters 3 and О respectively. On the other hand, teletypes had a full digit series 1234567890, but lacked the literal Ч, so 4 had to be used instead. This is can be seen even today in РЖД (railway) telegrams.
Thank you so much for introducing me to Artem! What a great channel!
The beauty of this mechanism is just fascinating.
Всё, круг замкнулся, теперь тут и Кашканов засветился)
Не просто засветился а помог товарищу из США с тонкостями перевода с русского языка.
Американцам тяжелее пользоваться русским, чем нам английским.
Мир! Труд! Май!
Let's all give a big hand for CuriousMarc for this fabulous series of videos honouring this fantastic piece of engineering and demonstrating it in his own Curious way bringing two rivalling worlds together. Thank you Marc 👏🏻👏🏻👏🏻
My pleasure! Thanks for the encouragement!
Fascinating! I could not sleep with that loud ticking, but the sound itself is cool, something honest about it. Honest ticks :).
Nice video! I knew Artem's channel before and very happy that you collaborated :)
Thanks! 😃
Absolutely exciting to see Artem featured on your channel! Excellent content, Marc!
You forget to add the link in the description :P
I miss the mechanism which reset chronometer counters.. How does it happen? A spring-loaded system?
I really love the interior of soviet clock mechanisms.. I disassembled many old clocks in my childhood.. :)
Very sorry, it’s fixed now! I had to upload in a hurry before I got to my next appointment, had not added the end screen, links and cards yet.
Ахахах! Ю'в гат стронг Рашен акцент!
(у меня уровень английского - Мутко! Молодец, запили когда-нить видео на английском!)
And yes, I really wanted to know what was under the bezel, but that involved taking off sealed green screws. And maybe even the hands, which I am not equipped for.
A video with both Artem and Marc : this HAD to happen sooner or later ! Yet I was surprised to see it :-D
@@CuriousMarc I tried in my childhood to unscrew some of that sealed screws on some decommissioned soviet kind-of-military equipment. Chance to do it was 40% - most screws were made from soft metal, and it's much more easy to break screw head, than to unscrew it.
You missed the chance of a lifetime! You could have shamelessly rickrolled each and every single one of us with that custom alarm sound.... That would have been an epic twist and would in my humble opinion have been much, much funnier than the cuckoo clock sound effect. Nevertheless thanks you for the great video! The engineering prowess displayed by the designer and fabricator is simply incredible, such craftsmanship! These military quality spacefaring electronical/electromechanical timing contraptions are always a treat and incredible to watch!
Big Clive: Let's hook this up to the Hopi meter.
Mr. Carlson: Let's hook this up to the current-limited variac.
Curious Marc: Let's hook this up to the ATOMIC CLOCK.
Me: ...why do I subscribe to so many electronics channels? :D
Somehow doubt the mechanical clock noise would be a worry on a Soyuz, as if all you can hear is that clock, and not the dozens of screaming fans, running pumps and inverters providing all the AC buses, you are either on the ground attached to a broken test set, or if you are flying, you are about to have a really bad rest of your life, short as it is.
WIIRRRRRrrrrrrrr....tick, tick, tick...tick....tick.............tick oh pizdec
I imagine the tick-tocks would become the beating heart of the ship. You notice them when they're not there.
The star on seal means Military acceptance.
There were goods for military usage and general usage in USSR. Military type components were similar to industrial/space type in USA or Europe. Military requirements were much striker than general. If a general type product slightly doesn't match to the requirements it usually go to shops. But it was unacceptable for military type products. Key visual difference of military type is star or rhombus on them. You saw rhombus on many components into electronic Soyuz clock.
Original name of this requirements is "Военная приемка" (Military acceptance).
"отк" means the manufacturer's technical control department; "пз" means customer acceptance control.
A common question for implementing watch/clock mechanical complications, and/or basic timing functions, is how to maintain position of the gear train (hand position) between timing events (escapement, ratchet, etc.) in the presence of expected dynamic forces. On earth we are only dealing with gravity, but a wrist watch is moved and tilted, which is addressed by the watch constant force drive train from the spring to the escapement. This arrangement reduces gear backlash effects (hands bouncing) and also resists gravity errors regardless of orientation (although timing error is orientation specific). For a mechanical clock to go into space in the presence of high G forces the 1/2 second ratchet wheel must locked in position after being advanced. This mechanism must produce a great deal of force (as compared to earthly clocks) to unlock, move and relock the ratchet wheel. This is why the solenoids are so huge.
I love the sounds this thing makes. Thank you for not playing music over this.
WOW Thanks for Artem's channel recommendation! I have 4 of those plasma displays and had no idea how to get them going.
You are really get into a trouble if you want to powered them up 😂
@@ArtemKashkanov oh boy...time to start learning Russian I suppose...
@@ArtemKashkanov I am lucky I clicked on this comment the link and searching for you don't seem to work.
Great video! Loved it. There is a reason the clock is loud though.. It is not a flaw, but more seen as a feature. It's so during any manual maneuvers that are counted in seconds, they don't miss one! Humans do much better with more than one form of feedback. Visual and audio feedback combined are the best delivery methods for a majority of us. Combined, those effects are compounded, and highly efficient compared with responses to the effects individually. When you are moving at 14,000kph, 5 seconds VS 7 seconds is pretty important. That's all speculation though. I have absolutely no idea if that was in mind, or if the clock was even in the control cabin lol.
That clock is beautiful inside, like a work of art.
I watched your fabulous video all the way through..... But now I can still hear that ticking in my head....it won't stop...... 😵
Amazing video, thank you! On a side note - the time stopping function is not a Chronometer, it is a Chronograph. Chronometer is something like a precision standard.
the wires are wrapped in a PTFE (teflon) sheet, also the wire isolation material is the same;
sausage made of wires is called "жгут".
those are the best oxygen-free copper wires for signal paths, still in use for a modern military equipment.
That is a beautiful piece. Elegant design and function.
3:25: Interesting to note: There is a little ridge (or tongue or nub, or whatever the correct technical term is) inside the otherwise round 19-pin male connector. If there weren't, then it would be possible to plug in the cable connector rotated by any multiple of 60 degrees. And of course, only one of the then possible six positions would be correct. The keying of the connector takes care of that. So much attention to detail on this thing. It's very impressive.
PS: Does the riveted grey cup hide another connector, and does that mean that several of these secondary clocks could have been daisy-chained?
PPS: Oh, no, I'm stupid, 10:24 shows that that's not the case. That cup covers the protruding part of the BFS (Big Forceful Solenoid). See 12:23.
These Mechanical Marvel's are a work of art, I'd love to have that in my collection. Excellent job getting it going in it's full capacity to show us.
the sequence of the buttons remind me the GRAFCET state and transitions scheme, wildly used on PLC's programming. To have a transition to the next state you have to complete the current state, once the conditions are done the program go to the next state. Nice job as always Marc!.
small point - the stopwatch function is called a Chronograph, not a Chronometer. A chronometer is a watch which meets a high standard of timekeeping, as in marine chronometer. A chronograph is a complication / function of a timepiece which records elapsed time. Technically chronographs should be called chronoscopes, but they are referred to as chronographs for historical reasons.
This clock is gorgeous... I'd love to model it for 3D printing!
I'm just tickled seeing that System Start button. 20 some years ago I saw it at Halted Electronics but at that time I didn't know I was getting it for you. You've done what I hoped I could have done with it. OK, that's it. I'm not going to comment about it anymore...Cool! Or should I say прохладно!
Thanks so much for the switch!
A lot of design and good taste in these two devices, very subtle within the practicality itself. I love the sound of the actuator from minutes to hours, and the actuator itself, the label itself. The combination and the end result are fucking perfect for my taste :p
Thanks to the channel for these luxurious explanations and their details.
Very very nice. Thanks for sharing. I wonder how many examples of this timepiece exist in the world?
Thank you, Marc. Hello from Russia.
EI dit not know zhat zhe siberian cuckoo vos zhe orrritshin of zhe Kuckuck-clock sount! Zhanks for zet inside!
…you had me roaring with laughter, Marc! Effing great video about a really beautiful piece of engineering!
I wager it was size concerns that led to this thing being taken out of mothballs to be used in the Buran shuttle. I bet that loud ticking was also a feature: It would be helpful in hearing it over background noise/comm traffic.
For sure the sound wasn't just a byproduct. I have seen electromagnetic clocks made in USSR (mostly industrial applications like belt timings and sorting stuff) that are whisper quiet. You would never know they're working were it not for a rotating red knob.
Russians are extremely purpose oriented designers, doubly so in the aerospace area. If it's there, on the front end, it has a reason.
What a GREAT series and many thanks to Artem !!!
22:04 might be called the Apollo-Союз Честь Project.
8:14 - Thanks, man!=) I was sure it was going to jump, that's why I was disappointed. But, now I know that it's smooth, just like it works on the main clock face. Thanks again for pointing it out for me.
Interesting. I think I actually get how you'd use it now: the mission time is not reset during flight of course, but the chronometer is presumably for crew use for things like "fire thrusters for 4 minutes 32 seconds", right? And alarm for normal things like wake-up and prep for burns and such.
This is a great advancement for me, I couldn't figure out why there would be all the various displays and functions in the digital one. Presumably the omission of hours on the digital chronometer is no great loss if the things being timed are less than 100 minutes, and perhaps even easier for durations longer than 59 minutes
So, since it's incapable of regulating itself, is it really a clock? The timing pulses are being driven in by something else. So isn't it more like a complex mechanical counter?
In the terms of clock types, it's a secondary clock, which gets the count pulses from the primary clock.
You need one primary clock, which will drive some number of secondary clocks - this system was widely-spread on soviet manufactures when you need to broadcast the same time through all buildings.
As a result, the secondary clock is just a simple stepper motor and some gears for it, all-time precision comes from the primary clock mechanism. which might be sourced from a balance wheel or a cesium clock.
I think a lot of older bedside clocks were regulated by the AC oscillating frequency from the power source. They would run faster or slower if the frequency was not in spec (60hz US, 50hz Europe). I suspect this Soyuz clock is much the same way.
@@ironhead2008 As we are talking about Soyuz clock's external time source - it must not be AC line - the AC frequency in the autonomous power system (e.g. aero and space) is never stable.
You could consider it a "Slave Clock" like the ones used in schools. They are driven by a master clock. In fact, Marc's flip clock is one of those "Slave" clocks for a factory where they had a master clock feeding it pulses.
Depends on how you look at it. There's clocks that used the frequency of the input currents, there's clocks that used a removable source...
Also, on some ICs and other components you will see a rhombus symbol. This means the part passed military acceptance criteria. Those parts could be released for public use, but parts without that sign could not be used in military gear.
You could see one of them at 12:03 on the toggle switch.
Fun fact: 0:23 is not an actual orbiter, but "equivalent airplane", similar airframe equipped with four turbojets and capable of runway takeoff for testing and crew training. You can see four turbojet instruments in the top center of picture and also throttle controls :)
Yes, but the clock remained in the actual flown model ; see (terrible) pictures at the bottom of this page : www.buran.fr/bourane-buran/bourane-consti-reacteur.php
Notice the space orbiter had provision for fitting two jet engines, one on each side of the vertical stabiliser although it never flew such equipped, hence the two throttles seen on the picture (instead of four throttles on the equivalent airplane).
Yes, you are absolutely right. This is a picture of the Buran trainer.
That is so fantastic - I want that clock in my studio/workshop/spare bedroom!!!!!! Guess I'll just have to make do with watching your video, cheers Marc :-)
10:27 Marc has been watching EEVBlog lol
Yes. Plus there is no AvE-ism for this...
Thanks, I am not too much into remakes, but I have to say that this one of Soyouz-Appolo 1975 isa good one!!!
Synchronicity: I have been Dust videos on TH-cam. Tonight I watched Voskhod. A doomed cosmonaut communicates with an isolated man in the wilderness in the 60s. Radio communication. Communication. It's what we are about. Thank you #CuriousMarc for making me aware of and valuing the Soviet efforts in space.
Can you PWM the pulses and play tunes? While still keeping the clock ticking accurately.
Marc, stamp «ПЗ 7» is military acceptance stamp
Thanks!
Can you imagine trying to sleep inside the Soyuz with something that loud? Something that looks like it was designed by Don Marin? "TICK-KABOINKLED-TICK-KABOINKLED-TICK-KABOINKLED-TICK-KABOINKLED..."
I wonder if the reason they used it in the buran was because it was a prototype? They might have snuck in some surplus parts until they finalised the design. The state of the digital clock suggests to me that they probably salvaged and refurbished some components for reuse in later flights which makes sense since the Soyuz is single use. Avionics are expensive.
That is EXACTLY the amount of fanciness I would want a French space clock to be!!
You missed an opportunity to play "Midnight In Moscow" for the midnight alarm you set!
9:03 I have the same tamper on my reel to reel recorder MPK-005C
Hope to see your collaboration with Artem in the future. I guess together you can create outstanding nerdish content with retro electronics☻
26:40 Now I saw firsthand what the "union - apollo" project looked like.🤩👍🌟🚀
Underrated comment. A genuine Apollo-Soyuz revival! One of my favorite things in space flight history
LOL @ the french space clock. Needs to be gold with Fleur-de-lis
what a adorable little dog clutch! 12:00
This clock will be very useful for the time machine that you are building. 👍
The alarm indicator appeared to turn on about 1.5 seconds before the set alarm time and was on about 1.5 seconds past the 30 second mark on the clock face for a total on time of about 33 seconds.
Вот уж не ожидал Артема увидеть тут! Приятно удивлён)
The Russians (and other Eastern block folk) who built the space program were extremely purpose oriented folk. If something exists, then, it exists with a certain reason behind. So the noisy nature is not a bug, it's a feature. I've seen plenty of electromagnetic/electromechanical same era industrial applications where the mechanism was whisper quiet, and the only tell, was a red (or green) knob, rotating with the main assembly.
I'm confident that the loud mechanism had a reason, either for logistic aspects or for psychological ones, but it certainly wasn't a fault.
P.S. shame what happened to the shuttle. :\
Are you going to try and find the Patek Philippe clock which goes with that cesium frequency standard?
Another amazing video, you sir are doing great deeds to science by documenting these amazing engineering marvels. Many of these devices and processes would be lost history. PS, I told my wife that it would be a ckoo-ckoo clock noise lol.
So I do understand that this mechanical time indicator is doing its job just fine. I do also know that the sovjets were very reluctant to change working things. So why do they went to the effort and replace a proven and perfectly working mechanical time indicator by a vastly more complicated digital one? The only thing that comes to mind is that the ticking of the mechanical indicator must have driven the crews nuts!
I think machining all these gears, shafts and rockers, veryifying its geometrical tolerances is more expensive and time-consuming, that soldering in dozens of identical standard logic chips.
Could be the optics. The Space Race wasn’t just about true achievements but also about keeping up appearances against each other. Between an “old fashioned” mechanical unit or a cutting-edge digital one, just having the latter in publicity could have been a priority for the Ministries involved.
"ПЗ 7" ПЗ (PZ) is abbreviation of Представитель Заказчика -- Customer Representative. Where Customer is Ministry of Defence. All devices should be checked by both OTK -- factory internal control and PZ -- external military control.
Brilliant again, thanks Marc and team.
9:40
OTK is not "output control department", Artem got his language wires crossed.
Otdel is department, the other two word are "technical control". I can understand why Artem misspoke and said "output" but I don't think I can explain... as a Russian speaker it feels like a natural mistake.
Anyway here's the wikipedia entry:
en.wikipedia.org/wiki/Technical_Control_Department
It's not a mistake. Both options are correct. Отдел технического контроля, он же отдел выходного контроля, названия разные, суть одна.
I just ordered one of those rocket lamps from Russia, saw it here months ago and didnt think I would find one but there are quite a few on ebay.
12:35 By the way, the rhombus is a sign of the component's suitability for military use.
Wow!
So what is your pick on the reason to change over? It's not weight, is't not precision, it's not even function.
?Is it solely readability then?
Awesome. Thanks for the video!
I wonder if it was possible to hear the clock on old radiotransmissions from the spacecraft.
I bet those marks on the totalizer wheels have something to do with setting time on it, something related to bypassing the lower digits so you can set the higher ones more quickly. Otherwise, turning that knob to advance 1 minute at a time for days worth of mission time would get very old very fast.
Since someone said it's a hole, could it be that you would stick a pin through it to stop it turning and there's a mechanism to in this case translate the motion over to the next wheel over? Could also be a some sort of actuator inside the wheel that the pin would push on and move it so that the gearing bypasses the normal wheel.
I'm not sure why it would be on the 1 and not the 0 in this case, however.
Interesting idea. It is a hole indeed, I checked for that in the binocular. Could be used to by the reset mechanism also.
У Марка золотые руки.
I don't know if it's apocryphal, but I've heard that Russian ejection seats are the envy of others due to their reliability. They, too, are clockwork rather than electronic so still work when nothing else does.
what an awesome clock this is! It would be terrible in the bedroom though.
Pleased to see you didn’t go to any effort! 😀 Fantastic job Marc! 👍
Охохо))) Даже Артём Кашканов наш тут появился)
At 03:16 isn't that the clock that flew 1902 with Georges Méliès to the moon, made immortal in his documentary "Le Voyage dans la Lune"?
This is really cool! Thanks Marc!
I can assume that such a loud sound is needed so that the ticking of the clock is audible in a spacesuit or when headphones are on the head
“French space clock”. My wife is no awake from my giggles.
Could the dot on the "1" be to differentiate easily between 1 and 7? I'm assuming conditions would likely be less than optimal at times making reading the counters difficult in low oxygen/frosted environments?
Marc, I think the dot near the 1 is actually a hole. Look at how clearly defined the edge of the "dot" is compared to the printed 1 next to it. Why print such a clean edge on a dot but not the numbers? You would need to get a flashlight up close to know for sure but I think that's what it is, a hole. Maybe its an alignment hole for the milling process? Maybe the other numbered rotors used a different method for alignment and thus no holes? in the footage you inserted of the day counter you can clearly see the "dot" is darker than the printed 1, that would seem to me to mean that its not reflecting light because its a hole. Again you would need to get a closer look with a light, but it really seems like a hole.
It **IS** a hole. Looking at it with the bino, you can look right through it and into the plate a far bit behind it. It does not appear to register to anything, at least when into view. Maybe used by the reset mechanism? But then why don't we see it in the hours wheel? Mystery remains!
@@CuriousMarc You know I had a feeling. Glad to hear it's confirmed. As for why its not present on the hour, I can't say for sure, but I still think its for alignment at some stage of the manufacturing.
красиво делали) фторопластовые провода в такие косички заплели мммм :)
The clockwork clock is superior with more functionality. Nice alarm sound. Thanks.
Muchas gracias por su informacio me gusto micho y aclare michas dudas felicitaciones
That alarm clock joke is the kind of joke that cracks me up, but no other people around me gets it.
Great video. And hello from Russia, dear "tovarisch". )))
You could wire the lights on the chronometer buttons so that only the function that you can activate is lit. So for example the “reset” light would light the start button, the “start” light would light the stop button etc. If you reduce the solenoid driving voltage could you soften the slamming of the solenoids?
Agree on the buttons! I considered that for a while but it would have required changing a lot more of the wiring inside the prop and I was already behind. Makes explaining more difficult too. But it’s the better user interface for sure.
On the solenoids, if you reduce the voltage it just stops all of a sudden. Or see the reverse in the previous video when it starts, I am just raising the voltage slowly. And it goes straight from not working to quite noisy.
ПЗ - представитель заказчика)
What am I missing - all the efforts to hinder resetting or changing critical settings, and the whole thing can be turned off with a front mounted toggle switch?
3:15 thats like a clock on a spaceship from the Dune story.
Just a guess and others might have already guessed it... the 1. dot keeps one from visually confusing it with a 7.
"Who needs electronics when you have gears...?"
When you have gears indeed! These kinds of machines were remarkable for their time and consisted of cogs and gears. On with the video!
www.fi.edu/history-resources/automaton
Oh my, that’s a super awesome mechanical automat. I think Fran Blanche worked on it.
well made, emp proof.