I bet Marc & crew will see this AGC again. After all, they are the ONLY aftermarket AGC repair group on the planet!

@johnopalko5223

4 жыл бұрын

"Apollo Tech Support, Marc speaking." 😊

@pmcgee003

4 жыл бұрын

"No, dammit. Apollo, not Apple. Stop calling me."

@kbabioch

3 жыл бұрын

@@pmcgee003 Haha, that made my day!

Good news for the buyer... There is a "how to" repair series for these units on KZread. I hope you guys want to and get to make this AGC work.

@djmips

4 жыл бұрын

😂

I would love to see this one restored to full functionality. maybe the auction winner will ask you to do it.

@SuprSi

4 жыл бұрын

I hope they do, especially since the modules aren't potted it would be easier. I wonder if they could retrofit a test connector so it can be controlled with Mike's genius test port controller/debugger thing.

@markm0000

4 жыл бұрын

Simon T ow yeah they can. Mike is probably thinking of all the possibilities on how to restore it and get all the mismatched parts working together.

@mikestewart8928

4 жыл бұрын

@@SuprSi What's missing from this computer is the grounding test connector cover, not the test connector itself. The test connector is present and functional on all AGCs (and so all are compatible with the debugger). :)

@SuprSi

4 жыл бұрын

@@mikestewart8928 That's awesome, I hope you get to work with this one soon, thanks for the reply :)

@user2C47

4 жыл бұрын

It might take too much time, but I would definitely want to see it restored, as long as it will have less than 8 videos.

They should have to list it like on eBay "Not tested, as-is or parts only! Apollo AGC module. RARE! Includes only what you see here. I do NOT have a working Lunar Excursion Module or cords so I'm not able to test. No returns."

Yesterday there was a "rollover" lottery here in Europe. Actually it was the culmination of quite a few rollovers. £170 million. I didn't have the winning ticket. But if I had won the jackpot you can bet your life who'd have been the new owner of an AGC.... :-D

I love seeing this old gear. My first job in the '60s after university was setting to work similar equipment of this vintage. Happy memories.

Curious Droid and the AGC. The gift that keeps on giving! Mike is such an expert on these! Thanks again guys. Keep ‘em coming!

Seriously this is amazing that a old device like the AGC is traceable through the history. Whoa.

Mike is too adorable! Ha!! I love how excited he always is in these videos! He knows his stuff! 👍👍

... and that beatiful Solari clock reminds me the time when I subscribed just for clock maintenance, you've really come a long way in this channel!

hopefully, whoever buys it will give it to you to make it functional.

@rkan2

4 жыл бұрын

Gofundme? I'd put in a 10$

Catalog item 2102 - Opportunity missed there. Should have been 1202 :)

@user2C47

4 жыл бұрын

1202 must already be taken.

@johndododoe1411

2 жыл бұрын

@@user2C47 1202 should be the radar unit that can overload the AGC if the off function doesn't work.

Thanks guys for this awesome series. I'm totally flashed now by the engineering skills shown by everybody, that is art!

Another fantastic video Marc, I think I speak for many in saying we can't get enough of the AGC! The price seems pretty low given the coverage you and your team has behove it, it will be exciting to watch. I gather this one appears to match the drawings in the MIT handbook PDF Mike uploaded, as it has the extra connector(?) in the front right of Tray B's casting, as well as the cloverleaf pattern on the bottom plate instead of the rectangular indents? (I did a simple Thingiverse model of this version a couple of months ago, I intended to update that to look like Jimmie's one sometime).

Marc and the team you guy are a special group of nerd (the specialist ) for the common nerd look up to.... love the work you guys did to restore the Apollo AGC.👏👏👏👏👏👏👏👏👏👏👏👏👏👏👏

Space Center Houston needs to buy this AGC so it can be reunited on display with LTA-8!

WHAT A PHENOMINAL SERIES ! . thanks guys

Amazing.. simply amazing piece of technology. Fills me full of butterflies when I think about how we got to the moon.

Loved the series. Good job guys.

NOW THAT WAS A RIDE! Amazing save, Great job folks!

Clearly Don went in the LEM one night with a screwdriver and they needed to find another AGC

I think the estimate is low for a sizeable chunk of history. We'll see what it goes for 🙂

@frac

4 жыл бұрын

It's not a baseball card or a gun, so most Americans won't care about it.

@rbmk__1000

4 жыл бұрын

@@frac you forgot comic book

@paulhammond7489

4 жыл бұрын

@@frac Sold for $279,858.75 (includes buyer's premium) link : www.rrauction.com/PastAuctionItem/3418160

sweet to see some more AGC goodness

Wow. Nice one! Time for some crowdfunding maybe? Thanks for the video.

Those will end up selling for more than my house is worth. Basicly for the rich computer collectors & I mean very rich.

@spwicks1980

4 жыл бұрын

Hopefully a museum snaps it up so people can look at a piece of history forever.

Oooooooh.... more hints of analog videos to come!!!

Mark, I am a proud owner of one Apollo DSKY T-Shirt,... I don't know how you can top this saga. Never the less, yes i have seen the RTT restoration... but compared with this.....

The surprise will be total when we hear Marc bid on it and is now the proud owner of an AGC ;-)

This further confirms to me how the success of the original manned missions to the moon were, at all times, balanced on a "Knife-edge" - the fragility of the computing kit and its computing limitations of the AGC just added to this.

Asalamaleikum from Kosoves.Thank you USA

The content was very beautiful and informative

That's good news. I was waiting for one agc to use it in my Apollo clone.

I can never get enough of these :D - Thanks Marc Are you going to bid on it ? :)

@bobl78

4 жыл бұрын

do you think he has 500.000 $ to invest into an AGC ? :)

@hqqns

4 жыл бұрын

@@bobl78 It's just money :)

@fabianfierro

4 жыл бұрын

They deserve to have it though, or at least someone who let them restore it

@hqqns

4 жыл бұрын

@@fabianfierro I can't think of anyone who deserves one more than Mike but I doubt he can afford it.

@fabianfierro

4 жыл бұрын

@@hqqns me too. AGCs are only interesting to nerds and museums, whoever buys it will give Mike access, it's not like rare art or antique that end on private collections, hidden from the word (or I seriously hope it won't end like that)

If I just buy a complete Apollo rocket wouldn't it come with a AGC or is it a good idea to have a spare?

I'd like to see the crew take on building a new one using tge original cct. Using simple 74hc series would work as a suitable replacement

@CuriousMarc

4 жыл бұрын

It's been done, most notably by John Pultorak for the Block I. See here: see here www.ibiblio.org/apollo/Pultorak.html . And of course even more notably by our very own Mike Stewart, who built a gate exact replica Block II in an FPGA. Which led him on a multi-year quest to find the lost schematics and software, and finally to find a real AGC to be able to trace the exact original logic, which we eventually restored to working function. We used Mike's replica extensively during the restoration as a guide to what the AGC should be doing, and it was always pinpoint exact. Annoyingly, the 74xxx series approach falls apart when you have to implement the non-logic IC based modules, such as almost the entirety of the Tray B, for which you'd most probably substitute completely different modern circuitry and memory. It also fails with the analog I/O and alarm circuits, but you would just duplicate the original circuit discrete components. For the main logic part of tray A though, you can pretty much do an exact logic replica with TTL or CMOS and get it to boot, as Mike demonstrated.

@absurdengineering

4 жыл бұрын

CuriousMarc I wonder if some sort of an “homage to analog” design could be done, using a single IC throughout as a challenge, and very few additional transistors. LM118 family released in 1971 would work passably for logic circuits as well as “fast” analog needed in this application. They don’t have much drive capability without getting slow, so one could parallel them or cheat with emitter followers :). Also, the whole thing would be a thermal monster. 5mA/op-amp is, I imagine, a lot compared to average supply current per chip in the AGC?

Прикоснулся к технологии Аполлона, браво !

300k? Uh, I guess I better wait for a flippin' Amazon warehouse deal then for one of those! 😂

Looking at what other Apollo items fetched in auctions. I bet this tops 500K probably close to if not over 1M. Love the DSKY Pics, are there stills of it. the internals are fascinating

@mikestewart8928

4 жыл бұрын

Since I think everything is shown in this video -- sure! Here's what I took. I wasn't expecting to be able to take it apart that day, so the only camera I had with me was my phone: photos.app.goo.gl/V5KYistnWyWFqQCi7

@smgvbest

4 жыл бұрын

@@mikestewart8928 You're my hero. great pics. thank you very much

@rkan2

4 жыл бұрын

@@mikestewart8928 You didn't learn to always come prepared at this stage of the series? :/

@hoofie2002

4 жыл бұрын

Since there is now a pathway to get it working that didn't exist before I expect 500k isn't far wrong.

@hoofie2002

4 жыл бұрын

@@mikestewart8928 fantastic Mike - thanks for sharing. I shudder to think how much was spent on engineering just for the front case shell that fits over the keys and displays. Is is cast or machined?

Another epic video guys. Good to see that at least some of these AGCs escaped the crucible. By the way. LEGENDS. Thank you.

It would be nice to have had a spare $300 000 lying around. 🚀 Thanks so much for sharing. 😎👌🏼

What happened to the AGC's that actually flew? Are they still in the spacecraft? (Meaning that the LM ones were destroyed).

guys go to the moon with your restored nasa old school equipement ...i will give a thumb up for this

I wonder if the V2 guidance computer from "Astronomy & Nature" could be set up to run a simulator like your AGC.

@Trek001

4 жыл бұрын

Their aim would be history The V2's aim would be London

Forget about buying a house... buy an AGC instead! Much better way to spend $300,000 (or whatever it ends up going for).

"everybody has one these days" lmao!!!

Where is the gofundme??? Every subscriber would need to donate 10$. I'm ready for that :=P

Can you do a video on Build your own AGC!

I really don't understand the 10th of all that, but it's strangely amazing...

There's a larger vacuum chamber at the Glenn Research Center in Sandusky, Ohio. It's the largest in the world.

Hmm, another computer to add to your collection Marc? :)

that is an object of desire.....

I really love the text font used on the agc modules. Does anyone know what the font is called or if it is available somewhere on the internet?

@mikestewart8928

4 жыл бұрын

The drawings indicate that the lettering is 0.26"/0.24" high white characters. They reference specification 1002122, which is sadly missing from the National Archives, but we know that the title of it is "Futura Demibold Characters, Process Specification".

@1944GPW

4 жыл бұрын

Good question, and thanks Mike for the answer. There are some folks who really LOVE to identify fonts used in pop culture, for instance this very interesting page on the fonts used in 2001: A Space Odyssey typesetinthefuture.com/2014/01/31/2001-a-space-odyssey/

@MoMadNU

4 жыл бұрын

Based on the vast amount of video Marc took from Jimmy's AGC restoration showing this font, It would be trivial to generate .FNT or .TTF file no?

@user-po6hn9id1t

4 жыл бұрын

@@mikestewart8928 makes sense. The entire Apollo program used Futura even on the plates they left on the moon.

2:57, FINALLY! Good to know it's possible, but I'm sure it's a temporary condition. :)

@mikestewart8928

4 жыл бұрын

Hehehe. Based on a drawing we got this weekend, I'm now 99% sure that the answer to the question resides in revisions of drawing 6014999. We have the latest revision (as shown in the video) which specifies 2003100-071 for G&N 602, but according to this other drawing, there should be some earlier version that will state 2003100-051. We'll hopefully get all of the revisions of 6014999 before the end of the year, and then we'll be able to pin down when the two were swapped, at least to the month.

@gth042

4 жыл бұрын

@@mikestewart8928 I suspect you've reconstructed more knowledge of "what" and "how" than those working with it originally. They couldn't see the whole picture at the time. It's gotta be a *well-earned* thrill to converse with those original participants and blend your model with what they actually experienced at the time. The stories and perspectives you guys have swapped are truly rare experiences in life. I hope you're writing this stuff down for your book -- Feynman-style collection of fun stories perhaps? :)

so this incredible piece of human history sold for less than $300K while a lame Apple 1 goes for over $1.5 million seriously?

Why isn’t it all staying as national treasure from the greatest accomplishment of all time? We should have an entire museum built around all this hardware, and have all this work sponsored…

@Jan_Strzelecki

Жыл бұрын

Um... don't we? In Jonson's NASA Space Center?

I wonder which one they used in Superman 2?

@Steph.98114

4 жыл бұрын

Wait what?

@vyruss000

4 жыл бұрын

@Lassi Kinnunen kzread.info/dash/bejne/aXdqy9ChaNqxfKw.html

I'd love to see someone install it in a full size replica of the Lunar lander with screens and stuff so you can simulate a landing

@CuriousMarc

4 жыл бұрын

That would be so awesome. Someone finds us a LM we can connect it to!

@user-po6hn9id1t

4 жыл бұрын

@@CuriousMarc Snoopy?

Actually, had anybody done "build your own AGC"? For real, from scratch. Not identical, using modern components but no VLSI. You could use TTL instead of RTL, use SRAM or dram, flash for storage. Just build the core unit from components. That sounds fun.

@rkan2

4 жыл бұрын

You'd have to manufacture the semiconductors, which would get pretty expensive I imagine. (if you want authentic ones) The rest of it would be pretty simple, especially if you forgo the original gold contacts, use some random ICs etc...

@kallewirsch2263

4 жыл бұрын

Yes, it has been done. As far as I know, eg. Mike built one before he started the restauration project. But there are others too.

@MostlyPennyCat

4 жыл бұрын

@@rkan2 Ok, not THAT accurately. I just wonder about taking the original diagrams but use modern components. Converting rtl to TTL would be a sod though 😒

@noth606

4 жыл бұрын

James Neave You could always try the way Mike did with FPGA, it's a functionally equivalent system just much smaller, cheaper and easier to debug and do stuff with. I am tempted by it but I don't have the $$ for the FPGA etc to do that. It would be an awesome project to do.

@noth606

4 жыл бұрын

James Neave check this out www.ibiblio.org/apollo/Pultorak.html

Can it be paid for with Palladium cast ingots stripped from "vintage" IBM circuit boards? ;)

@DandyDon1

4 жыл бұрын

...and look at that vintage Dymo labeling....

So, this is the last one? I want season two

@CuriousMarc

4 жыл бұрын

Until we can find another one... They don’t come around that often :-(

WSJ brought me here x

If i sell my house i can barely buy the DSKY.. i am a poor man , after all I live in Italy, what you expect!

@CuriousMarc

4 жыл бұрын

It would be a house priced computer here too. Which is a bargain compared to what it actually cost to make it - must have been in the $ Billions of total R&D investment, and they made just 57. By the way, Italy is also known for making very nice house-priced cars too :-)

Nice!

Magic👍

Are they in someone’s house?

Hmm, now I need the rocket to go with it...

@Trek001

4 жыл бұрын

Well, seeing as how there are still unflown craft in existence, it shouldn't technically be too hard to refurbish one to flight status, bung it on a SpaceX rocket and fling it up

Next: We are making our own Rope Memory 🖒

laser project a video of a flux capacitor in the museum LEM where the AGC should be ;oP

I'd like to buy it, but I think with the same price I'd buy one or two Tesla ... maybe!!

I just love the sound of Marc's voice.

8 to 71,how many agcs did they make?!

@phonotical

4 жыл бұрын

I spoke too soon!

@CuriousMarc

4 жыл бұрын

Yes it says in the video, 57 of the Block II AGC.

core rope memory?

@CuriousMarc

4 жыл бұрын

Yes Sir. Learn more about it in Ken’s article here: www.righto.com/2019/07/software-woven-into-wire-core-rope-and.html

O . . . M . . . G

I think I have about 300 grand in my back pocket is it too late? Ah damn it's too late.

Зачем вы надели синие перчатки?

some want old stuff & keep about for years in show cases or shelfs When you die its left to Family that dont want Junk & toss it out or get sell it 🥴 my mothers side the old farm was left to 1 granson because he had the family name Guess what he did 1 year L8tr Blew the lot on bad investments 1.5ml 1980s farm gone was started late 1890s so if you think keeping it in the name is right way think again share it amounst all family never 1 fool

nice technology for this years mutch better then soviet

13:30 they are called jacking screws

Isn't Jeff Bezos collecting Apollo parts? This thing might go for a LOT of money...

Beautiful. However, this accurate video just put this way out of my price range. I could afford scrape value, but the cost of restoration, let alone possession, is out of my league. I'm also happy not to be in that league .

If it's not Elon Musk who buys it and installs it in his Starship, I'll be disappointed...

@CodeAsm

4 жыл бұрын

I atleast hope Elon will bid, win and contact these guys to rebuild a fully working AGC with DSKY and such. maybe for a Space museum, on mars somewhere in the future :D atleast someone we all know and who might put it up for display :D

I wish I was Bill Gates for a day.

I like this show, but if you were to make a new one with the Alliterative name of Curious Mark & Cutie Mike I'd immediately stop watching this one.