If you believe Wikipedia you’d be right! I had wrongly assumed it would be European because of the metric dimensions and the name. That makes more sense that they used it in Apollo now.
@@CuriousMarc The standard measures in the US have been metric for many years they then convert to US imperial I have a 1998 GM Suburban all the nuts bolts are metric.
We used similar Deutsch connectors in Learjets. They were quite robust and pretty expensive. The crimpers for the contacts were very precise compared to all the other crimpers for various connectors.
A thousand years from now, collectors will collect our current computers and computer systems -- with a premium for equipment that still functions -- just like what is done currently with yesteryear´s cool stuff. You are “ahead of the curve“, as one may say.
@superbmediacontentcreator The "old analog stuff" had plenty that failed, it simply has available replacements for many components. Capacitors are one obvious category. Some types have entirely failed, while most types have so likely degraded that they should alway be replaced. Usable substitutes can be readily found, but there is little hope of finding ones that look original. That's especially especially true when multiple capacitors were wound in a single case. More modern equipment does have far more unique components with no substitutes, but many reliability and aging problems were solved.
Except that none of it will be repairable because nobody has diagrams / schematics & by the time companies are old enough to be public domain they're out of business & never released their stuff. Or they're intentionally made impossible to service. Not trying to be pessimistic, just frustrated by the lack of any ability to fix things these days.
@@danl6634 Anything newer than DOS era is basically a write off. It's true for everything, the chance of custom IC's and microchips that have programming are too high. 9x era graphics cards are a big problem, they are just new enough and complicated enough that it takes a long time to write an emulator for. But old enough that the current generation doesn't support those API's. We are well within a computing dark age between archives being removed, generative AI, and hardware being unobtainable.
@@danl6634 You are certainly not incorrect, but if I may contribute what I hope is not a too optimistic forecast of the future of "ancient" computer collecting: My sense is that there will be many, _many_ computers which will be made, between now and a millennium from now, to have a more than sufficient "supply" of collectable computers; indeed, as these things always work, the paucity of those few computers that will nevertheless survive into the future, will be conserved into intermediary collections, including museums, with adequate time and effort then put into conserving _with them_ documentation, both of software and hardware, as you address here. _Survival of the fittest!_
@@RikkiCattermole the information disappearing has been tough from all sides. Even at work, there way too much of the "we don't need to keep those old vendor binders, everything is online" mentality, when the reality is that stuff is disappearing at an ever increasing pace because if it doesn't make somebody money then it doesn't belong.
It is mind-boggling that the incredible technology from the sixties you show us in your videos is only part of what made up the entire Saturn 5 and Apollo spaceship. Neil Armstrong was so right about the “Giant leap for mankind” Thank you for sharing your knowledge Marc and team!
I really love these videos, and the work that goes behind them - thanks to everyone involved. When I was growing up I was captivated by the space programs. I had a very basic understanding of electronics, my father was an electronics engineer so I was exposed to some of the basics concepts, I knew a little Boolean logic, gates, flip-flops etc. However, I never really understood how incredibly advanced the technology was for the Apollo programme. I kind of assumed a lot of that technology came much later. Mercury, Gemini and Apollo was at the very early days of micro-electronics, but all the basics of computer hardware/software design, A/D and D/A conversion, RF engineering and much more were already in place. I spent my working life in electronics and computing, and I do enjoy (sometimes!) how technology has advanced, but I do look back to the 1960’s as a golden era. It is so important to preserve the legacy.
I was happy with the bits being decoded, despite them being incorrect, it's a major hurdle that the team has jumped. Can't wait to see the next episode. 😊
love that this restoration effort continues to roll along after several years! it's super informative today, and with a little luck in a few decades/centuries the story will be "here's exactly how we got to the moon" instead of "we know humans first made the journey in the 1960s, unfortunately only scattered details could be recovered from private collections. here's some, uh, rusty metal boxes"
It still wouldn't convince any of the moon landing conspiracy theory proponents though, I don't think even being there in person and seeing the actual boot prints with their own eyeballs would convince , it'd be 'oh, It must be aliens then', or a 'rover thingy that could leave boot prints'.
You know that, I was a High School Student when we were in the Apollo Missions' and I haven't really been able to think about, carrier, information, reception and computer handling the transmission,... but this would have to be a special, special transmitter and receiver. The information is so complicated!! Wow 😲! I'm so interested.
The solvent for conformal coating is Toluene. Use in a well ventilated place, vapors are pungent. If you want to see the coating use a powerful UV flashlight (mine has 100 LED's). Toluene is often available in the paint department of your local hardware store.
@@marcusdambergeryep toluene or where i work we use humiseal so we use there thinners and stripper. Ill get the part numbers next week but the smell is strong
i am really enjoying this series. you made me learn so much more than i ever knew about the apollo missions. some time ago you linked to a website that put together the raw apollo 13 communications... i listened to it for hours, i felt like i was watching a movie. thank you!
Are you still in need of the connectors? The company I work for used to used to use them quite extensively, and when old equipment was decomissioned we always cut off the connectors. Might be a few crates of them laying around here of various types
Just remember that the xyro up transceiver is used in the Doppler heterodyne phase locked loop transmogrifier to achieve complete sublinkage of the over assemblies. Just repeat that in mantra 50 million times and you will be able to follow along 😅😊😊
It's about the data uplink to the Apollo Guidance Computer. Mission control can remotely access the flight computer of the Apollo spacecraft with the gray box they have opened (and closed because it's completely sealed inside). The whole apollo spacecraft can be remote controlled with a digital communication. Nothing fancy, most space probe launched before the Apollo program had digital upload and download path. The interesting thing is that the digital data was all mixed with voice and analog TV signal. A bit like Teletext! (wich, for the record, was launched only two years after the last Apollo mission)
For me it’s amazing to Eric and Ken reading and analyzing the data so quickly from the scope screen. You are an amazing team! Can’t wait for the next episode!
3:45 "Neither metric nor Imperial". OMG! It's BSW!! Quick! Bring me my Whitworth Spanners!!!🤣 6:40 "Beautiful lacing. All with white wire". At least you wouldn't need to be tested for colourblindness before getting a job wiring these things!😁 Admit it. You guys just like solving impossible puzzles. It's always a good day when CuriousMarc uploads an Apollo Comms video (or any other video, actually).
1960s NASA: Invests millions of dollars into advanced hardware production techniques. CuriousMarc: Opens said hardware with a chisel and a $2 cut-out metal plate. 👍
No, in this case it's a really good sign. It means moisture has been kept out for 50 years plus. Much higher probability that it'll work right out of the box.
Great addition to the Apollo coms, I've never seen much info about how the ground communicate with the AGC. I had assume the unmanned flights had specially designed remote control gear but it looks like that capability was built into all the Command Modules. This begs the question did the LEM have the same capability or was this limited to the Command Module?
The music score was very apt. I was half-and-half expecting at the same time blinding-bright light to emanate from the enclosure upon opening it... this is Raiders of the Lost Spark type of stuff.
Looking at the schematics from CSM 114, which is the one we show in the video and is linked in the description, the five non resettable relays are: Abort A, Crew Alarm, ACE CMC zero enable/disable, ACE CMC one enable/disable, and TRDC normal/bypass. Abort A light and Crew Alarm were ground commands only (Abort B is resettable though). I think the ACE is to load the AGC with data on the ground through the umbilical, so also a ground function. TRDC is Tape Recorder/Data Conditioner. The ground was commanding the data recorder during the flight. So it all makes sense.
@@CuriousMarc I get why you'd want TRDC not to switch back to normal (if broken UDL switched it to bypass, it's presumably not very terrible, and if it should be in bypass, we don't want to switch it over accidentally or as part of debugging UDL). For crew alert (if it gets stuck on, it'll trigger master alarm exactly once and apart from that will just illuminate an indicator) and abort light I don't see any reason to go one way or another, so I guess it could have been more convenient for a reason I'm not seeing. What I'm confused about is the ACE stuff: it's clearly intended to be in the reset position at all times after launch, so why would we want a haywire UDL setting these relays to not be overridable?
@@robertobryk4989 The power connector has 4 reset pins, each of which resets 8 relays. The typical configuration left the first pin unwired, and connected the other three to the reset position of the switch. To your point, because there is not a lot of granularity, if you want to have a single relay be not resettable by the crew, there need to be at least 7 others. Those could be things you actually want them to not be able to reset, or things where it doesn't matter. I think the ACE one and zero relays fit into the "it doesn't matter if the crew can't reset this" category. The AGC only has one pair of transformer-coupled "one" and "zero" input pins for uplink. By closing the ACE relays, the "one" and "zero" wires from the umbilical get added to those nets. But since the umbilical is gone, there's an open circuit at that interface, so all that really happens is some wires with nothing at the other end get attached to the UDL-AGC connections. This will introduce a bit of extra capacitance, which won't affect the signal much. And any noise picked up by these wires is likely to be common-mode, which will be rejected by the transformer inputs in the AGC.
They had parts of it tested with the latest KeySight equipment and I believe two small stacks would have replaced pretty much everything on the table using software defined modulators and such.
Those boards do come apart if you use a large ultrasonic cleaner and 30 seconds of soaking, with boiling hot trichlorethane, which softens that conformal coating. You will lose a lot of component markings though.
@@zebo-the-fat Absolutely. But the thinking is to have thought through a few options ahead of time for a repair plan, if the UDL does not work. Viewers suggestions are quite helpful, sometimes we overlook something in the heat of the action!
You might be able to separate the two boards using a piece of stainless steel wire 24 AWG or smaller, or a piece of titanium wire for the same, just like you'd use dental floss to remove a dealership logo from the back of the car.
Fascinating stuff. I have a question.. does firing up any of this ancient gear run afoul of any modern day FCC rules, even from your basement without an antenna?
As always, fascinating watch. Ersatz-Deutschstecker, natürlich... TE Connectivity asking $100k for a bunch of plugs blew my mind. That money will buy you a good haul of fabrication equipment to make them yourselves. I'm not sure where these corporations are coming from when it comes to pricing - obviously it's high end stuff, but you're about making it work in the lab and not in space. Radiation, outgassing etc. is not a concern here, so no need to go for a perfect recreation. Compatible dimensions is enough. 18:47 clearly he doesn't get on very well with the CAPCOM!
![[LIVE] : ONE ลุมพินี 88 | คู่เอก "ป้อมเพชร vs อัสลามจอน"](http://i.ytimg.com/vi/1ZqTVVbMgbo/mqdefault.jpg)
Marc: *cracks the seal* "OK good, there we go."
Me: "Nice hiss."
Let's put that out on a tray...... Nice!
On set, we contract out all the jokes to TubeTime ;-)
That wire lacing is amazing!
Indeed. I always loved cord-laced wire looms. Check out s3vi.ndc.nasa.gov/ssri-kb/static/resources/nasa-std-8739.4a.pdf for how to do it.
Lumafield is an awesome company. They scanned some things for me too. It's almost magic how they can see into things. Thanks for sharing the video.
They scanned all sorts of stuff for us: th-cam.com/video/9fGurEa3EVk/w-d-xo.html
Deutsch connectors are not German, they are American. Alex Deutsch started the company in 1938 in California.
If you believe Wikipedia you’d be right! I had wrongly assumed it would be European because of the metric dimensions and the name. That makes more sense that they used it in Apollo now.
@@CuriousMarc The standard measures in the US have been metric for many years they then convert to US imperial I have a 1998 GM Suburban all the nuts bolts are metric.
@@CuriousMarc Looks to be true, you can find company registration and patent (US2892991A) from 1955.
Not much on the 17 years prior to that though.
We used similar Deutsch connectors in Learjets. They were quite robust and pretty expensive. The crimpers for the contacts were very precise compared to all the other crimpers for various connectors.
Interesting. I thought they were German too, haha.
Amazing it held vacuum for many decades.
Dry Nitrogen actually. Pressurized for convective cooling and to keep out moisture.
Something the Boeing Starliner couldn't do for 2 weeks ... smh
Or pressure more exactly
@@stevenflogerzi1955 All helium storage systems leak. Most companies don't report it because it's not a big deal.
@@stevenflogerzi1955helium, not nitrogen on star liner is the problem
I love the connector wrench - 2" piece of hot-rolled with a nut-shaped notch. Keep up the great work!👍
Machined in this episode, when we had trouble opening the PMP: th-cam.com/video/v1SGDbpeFFg/w-d-xo.html
And the wood chisel to break open the seal 🤣
@@nickm8134 The duality of man: More electronic diagnostic equipment than a small space program and then 'those'.
A thousand years from now, collectors will collect our current computers and computer systems -- with a premium for equipment that still functions -- just like what is done currently with yesteryear´s cool stuff.
You are “ahead of the curve“, as one may say.
@superbmediacontentcreator The "old analog stuff" had plenty that failed, it simply has available replacements for many components. Capacitors are one obvious category. Some types have entirely failed, while most types have so likely degraded that they should alway be replaced.
Usable substitutes can be readily found, but there is little hope of finding ones that look original. That's especially especially true when multiple capacitors were wound in a single case.
More modern equipment does have far more unique components with no substitutes, but many reliability and aging problems were solved.
Except that none of it will be repairable because nobody has diagrams / schematics & by the time companies are old enough to be public domain they're out of business & never released their stuff. Or they're intentionally made impossible to service.
Not trying to be pessimistic, just frustrated by the lack of any ability to fix things these days.
@@danl6634 Anything newer than DOS era is basically a write off. It's true for everything, the chance of custom IC's and microchips that have programming are too high.
9x era graphics cards are a big problem, they are just new enough and complicated enough that it takes a long time to write an emulator for. But old enough that the current generation doesn't support those API's.
We are well within a computing dark age between archives being removed, generative AI, and hardware being unobtainable.
@@danl6634 You are certainly not incorrect, but if I may contribute what I hope is not a too optimistic forecast of the future of "ancient" computer collecting:
My sense is that there will be many, _many_ computers which will be made, between now and a millennium from now, to have a more than sufficient "supply" of collectable computers; indeed, as these things always work, the paucity of those few computers that will nevertheless survive into the future, will be conserved into intermediary collections, including museums, with adequate time and effort then put into conserving _with them_ documentation, both of software and hardware, as you address here.
_Survival of the fittest!_
@@RikkiCattermole the information disappearing has been tough from all sides. Even at work, there way too much of the "we don't need to keep those old vendor binders, everything is online" mentality, when the reality is that stuff is disappearing at an ever increasing pace because if it doesn't make somebody money then it doesn't belong.
A new CuriousMarc video! What a wonderful and pleasant surprise!
Nice Hiss!
Marc really needs to collab with Steve1989 for these module openings lol
i'm glad someone heard me saying it! Marc was talking and you can't really hear it clearly.
👏It's neither Metric (SA) nor Imperial. It's ALIEN! 👽 And good luck decoding the bits, hope all goes well. 👍
17/64ths sounds a weird bastard sort of size to me :)
@@zebo-the-fat 6.746875mm. OK, I agree.
Buzz aldrin is still alive.. !! He might know!!
It is mind-boggling that the incredible technology from the sixties you show us in your videos is only part of what made up the entire Saturn 5 and Apollo spaceship. Neil Armstrong was so right about the “Giant leap for mankind” Thank you for sharing your knowledge Marc and team!
I really love these videos, and the work that goes behind them - thanks to everyone involved.
When I was growing up I was captivated by the space programs. I had a very basic understanding of electronics, my father was an electronics engineer so I was exposed to some of the basics concepts, I knew a little Boolean logic, gates, flip-flops etc.
However, I never really understood how incredibly advanced the technology was for the Apollo programme. I kind of assumed a lot of that technology came much later. Mercury, Gemini and Apollo was at the very early days of micro-electronics, but all the basics of computer hardware/software design, A/D and D/A conversion, RF engineering and much more were already in place.
I spent my working life in electronics and computing, and I do enjoy (sometimes!) how technology has advanced, but I do look back to the 1960’s as a golden era. It is so important to preserve the legacy.
I was happy with the bits being decoded, despite them being incorrect, it's a major hurdle that the team has jumped. Can't wait to see the next episode. 😊
18:07 that bench is looking pretty amazing with all that equipment :)
I can't lie, I was waiting for the brownout with everything switched on
love that this restoration effort continues to roll along after several years!
it's super informative today, and with a little luck in a few decades/centuries the story will be "here's exactly how we got to the moon" instead of "we know humans first made the journey in the 1960s, unfortunately only scattered details could be recovered from private collections. here's some, uh, rusty metal boxes"
It still wouldn't convince any of the moon landing conspiracy theory proponents though, I don't think even being there in person and seeing the actual boot prints with their own eyeballs would convince , it'd be 'oh, It must be aliens then', or a 'rover thingy that could leave boot prints'.
I love this channel. I love even more the elevator music segments, perfectly timed and fill in very relevant information. thankyou.
I loooooove these Apollo restoration episodes!!!
Good to see Mike again.
You know that, I was a High School Student when we were in the Apollo Missions' and I haven't really been able to think about, carrier, information, reception and computer handling the transmission,... but this would have to be a special, special transmitter and receiver. The information is so complicated!! Wow 😲! I'm so interested.
The solvent for conformal coating is Toluene. Use in a well ventilated place, vapors are pungent. If you want to see the coating use a powerful UV flashlight (mine has 100 LED's). Toluene is often available in the paint department of your local hardware store.
Just don't get the tri-nitro kind!! 😁
Toluene is nasty stuff, best use it outside or in a fume hood and far away from ignition sources.
Is there a way to dissolve it? i.e. get the pancake of boards separated but hopefully not destructive in any way to the parts.
@@marcusdambergeryep toluene or where i work we use humiseal so we use there thinners and stripper. Ill get the part numbers next week but the smell is strong
The HiRox part was the coolest part! It all was awesome. Your videos are so good!
Best part. Not coldest.
i am really enjoying this series. you made me learn so much more than i ever knew about the apollo missions. some time ago you linked to a website that put together the raw apollo 13 communications... i listened to it for hours, i felt like i was watching a movie. thank you!
Love your energy and expertise, in the pursuit of understanding and recreating the functionality of this historic technology.
my big thumbs up! I would pay for a 3 hour movie with all this brilliant resurrection of retro techno.
How about making a YT playlist starting with the first AGC restoration video?
I love the snap of socket head cap screws!
Definitly too short :) Once again an amazing video... Thanks to all of you...
I love watching you guys perform your genius wizardry!
Best content on TH-cam
GOAT!
I could watch these videos for hours!
Thank you so much.
Impressive fit and finesh… everything is like a work of art…
Are you still in need of the connectors? The company I work for used to used to use them quite extensively, and when old equipment was decomissioned we always cut off the connectors. Might be a few crates of them laying around here of various types
A M A Z I N G !!!!
Congratulations.
What a wonderful half-hour of joy!
Great relaxing video after work
I love these episodes thanks so much for sharing, I hope if anyone sees a spare capsule to put it all in they let you know
damn, that zoomed shot around 19:20 with the Mr. Fancypants shirt. Peak advertisement
That finished way too quickly or at least it seems that way. Now I want it all. Fascinating stuff thanks team!!
I want someone to capture the Snoopy LEM, restore it and upgrade it with a nuclear battery, put it into lunar orbit and communicate with it.
I have NO idea what they are talking about but I sure like watching these videos Thanks Guys
Just remember that the xyro up transceiver is used in the Doppler heterodyne phase locked loop transmogrifier to achieve complete sublinkage of the over assemblies. Just repeat that in mantra 50 million times and you will be able to follow along 😅😊😊
It's about the data uplink to the Apollo Guidance Computer. Mission control can remotely access the flight computer of the Apollo spacecraft with the gray box they have opened (and closed because it's completely sealed inside).
The whole apollo spacecraft can be remote controlled with a digital communication. Nothing fancy, most space probe launched before the Apollo program had digital upload and download path. The interesting thing is that the digital data was all mixed with voice and analog TV signal. A bit like Teletext! (wich, for the record, was launched only two years after the last Apollo mission)
I'm following your channel from Russia...!
Can you imagine the rush that must have come from working with the original NASA design teams?
Thanks Guys for the great video
For me it’s amazing to Eric and Ken reading and analyzing the data so quickly from the scope screen. You are an amazing team! Can’t wait for the next episode!
OK take as many episodes as you need!
Thanks!
Thank YOU!
I would give you guys another 2 years, then you should be ready to launch!
Been following along since the beginning. Is this on the path to becoming the only working apollo space flight system? Are there any others?
3:45 "Neither metric nor Imperial". OMG! It's BSW!! Quick! Bring me my Whitworth Spanners!!!🤣
6:40 "Beautiful lacing. All with white wire". At least you wouldn't need to be tested for colourblindness before getting a job wiring these things!😁
Admit it. You guys just like solving impossible puzzles.
It's always a good day when CuriousMarc uploads an Apollo Comms video (or any other video, actually).
I love this channel
Love your German :D Greetings from there!
Some of the avionics I’ve done teardown videos with have similar potted logic modules designed by Collins
Love this stuff; Keep it up mark!
VERY GOOD
1960s NASA: Invests millions of dollars into advanced hardware production techniques.
CuriousMarc: Opens said hardware with a chisel and a $2 cut-out metal plate. 👍
Awesome!
All that is in the box except connectors and controls now fits on a single IC. Technology has come some way since the 50s and 60s.
Radiation and power transients hardening of modern super high density ICs is a whole other can of worms.
Awesome video! Hopefully you are catching up on editing you backlog of videos ;)
3:03 The last thing I would ever want it is to “hear something escaping” disassembling something… 😂
No, in this case it's a really good sign. It means moisture has been kept out for 50 years plus. Much higher probability that it'll work right out of the box.
is that gold i see in dem hills? great vid
Great addition to the Apollo coms, I've never seen much info about how the ground communicate with the AGC. I had assume the unmanned flights had specially designed remote control gear but it looks like that capability was built into all the Command Modules. This begs the question did the LEM have the same capability or was this limited to the Command Module?
LM had the same capability.
🚀
Wuhu, just went to bed and a new vid ❤
Wow still holds pressure? That thing is so big for a few remote control functions, and still enough for a moon mission - I am again and again shocked
The music score was very apt. I was half-and-half expecting at the same time blinding-bright light to emanate from the enclosure upon opening it... this is Raiders of the Lost Spark type of stuff.
I wish my rocker-cover would seal for a year like that module did after 50 years - lol -.
3:01 "Blue!..."
You could do something similar with the shuttle's equipment and avionics. It doesn't have the same glamour, but it would be really cool
Motorola: you can buy better but you can't pay more. Heard from someone in our city management.
"You can make it better, but you can't make it more expensive" is how our 911 peeps talk about Motorola
21:15 may I recommend taking a picture with your phone, so that way you can zoom in and read the sub bits easier
Nice hiss.
What kind of CNC machine?
It is a 3 axis knee mill with an Acu-rite G2 CNC control and servos. Search "KTM-3VKF CNC w/ MillPwr"
3:12 nice hiss!
I’m curious whether that was positive or negative (vacuum) pressure.
@@kellyfrench according to other comments, it's dry nitrogen under positive pressure. makes sense, vacuum is as bad of a heat conductor as it gets :)
Which UDL-controlled relays wouldn't be reset by the reset switch?
Looking at the schematics from CSM 114, which is the one we show in the video and is linked in the description, the five non resettable relays are: Abort A, Crew Alarm, ACE CMC zero enable/disable, ACE CMC one enable/disable, and TRDC normal/bypass. Abort A light and Crew Alarm were ground commands only (Abort B is resettable though). I think the ACE is to load the AGC with data on the ground through the umbilical, so also a ground function. TRDC is Tape Recorder/Data Conditioner. The ground was commanding the data recorder during the flight. So it all makes sense.
@@CuriousMarc
I get why you'd want TRDC not to switch back to normal (if broken UDL switched it to bypass, it's presumably not very terrible, and if it should be in bypass, we don't want to switch it over accidentally or as part of debugging UDL).
For crew alert (if it gets stuck on, it'll trigger master alarm exactly once and apart from that will just illuminate an indicator) and abort light I don't see any reason to go one way or another, so I guess it could have been more convenient for a reason I'm not seeing.
What I'm confused about is the ACE stuff: it's clearly intended to be in the reset position at all times after launch, so why would we want a haywire UDL setting these relays to not be overridable?
@@robertobryk4989 The power connector has 4 reset pins, each of which resets 8 relays. The typical configuration left the first pin unwired, and connected the other three to the reset position of the switch. To your point, because there is not a lot of granularity, if you want to have a single relay be not resettable by the crew, there need to be at least 7 others. Those could be things you actually want them to not be able to reset, or things where it doesn't matter. I think the ACE one and zero relays fit into the "it doesn't matter if the crew can't reset this" category. The AGC only has one pair of transformer-coupled "one" and "zero" input pins for uplink. By closing the ACE relays, the "one" and "zero" wires from the umbilical get added to those nets. But since the umbilical is gone, there's an open circuit at that interface, so all that really happens is some wires with nothing at the other end get attached to the UDL-AGC connections. This will introduce a bit of extra capacitance, which won't affect the signal much. And any noise picked up by these wires is likely to be common-mode, which will be rejected by the transformer inputs in the AGC.
Stuck-together boards shouldn't be a problem for Master Ken, he'll reverse-engineer it using his ESP.
Check the PCM type. Might not be the intuitive NRZ-L that we're used to reading off an o'scope.
I skip all You tube intros on all channels except for this series and Mr fancy pants.
I'd love to see how small it would all be with current components.
They had parts of it tested with the latest KeySight equipment and I believe two small stacks would have replaced pretty much everything on the table using software defined modulators and such.
Under 1000 transistors on a chip. You could easily inhale 1000 such chips with no ill effect.
Those boards do come apart if you use a large ultrasonic cleaner and 30 seconds of soaking, with boiling hot trichlorethane, which softens that conformal coating. You will lose a lot of component markings though.
I wonder if you could separate the boards with a length of dental floss, or maybe monofilament fishing line
That’s what occurred to me too
That’s a good idea! I had not thought about it.
Yes but... if it isn't broke.. leave it alone!
@@zebo-the-fat Absolutely. But the thinking is to have thought through a few options ahead of time for a repair plan, if the UDL does not work. Viewers suggestions are quite helpful, sometimes we overlook something in the heat of the action!
03:50 obviously have to use an alien wrench there
Nasa nixie tubes. Love it.
You may be thinking of the quaint edge lit displays. There is a tear-down on the FranLab channel.
60s NASA tech is more reliable than my modern cell phone lol
your phone does do slightly more and may be a little smaller tbf
@@zyebormand my cell phone does all these things very reliable tbh
nice hiss at 3:19
Now that you have updata, I guess the only thing left is updog :D
So cool :)
Delicious. 👍
That sound sounds like old trunk radio control channel encoding
Alien reached us, there should be no crew overwrite for the „vent to space“ switch
Marc i hope to meet you one day...
You might be able to separate the two boards using a piece of stainless steel wire 24 AWG or smaller, or a piece of titanium wire for the same, just like you'd use dental floss to remove a dealership logo from the back of the car.
Use hot air to loosen the coating a bit… not too hot!
No intro music in Ab? I am devastated as its always pleasing to my ego to predict the pitch before it starts. Ah well maybe next time =)
Those connectors does seem to be easily within the capabilities of consumer grade resign printers
they are! Mike recently printed the housing matching the connector on the -- oh, you'll have to wait for the video. you'll love it!
Wonder if Elon has ever watched this series? Seems like something that would be right up his alley
Fascinating stuff. I have a question.. does firing up any of this ancient gear run afoul of any modern day FCC rules, even from your basement without an antenna?
No, we run it well below license power just to get from one end of the table to the other.
As always, fascinating watch. Ersatz-Deutschstecker, natürlich... TE Connectivity asking $100k for a bunch of plugs blew my mind. That money will buy you a good haul of fabrication equipment to make them yourselves. I'm not sure where these corporations are coming from when it comes to pricing - obviously it's high end stuff, but you're about making it work in the lab and not in space. Radiation, outgassing etc. is not a concern here, so no need to go for a perfect recreation. Compatible dimensions is enough.
18:47 clearly he doesn't get on very well with the CAPCOM!
Was this used for all Apollo missions? Here from Cape Canaveral!
Marc on moon when?
What's the insulating material separating the sandwiches made of?
Not asbestos is it?
Now you jinxed it.. One or two more episodes.. I think Murphy will have a thing or two to say about that.
Question how big would be the rig of modern equipment that replicates all boxes on your table ?