Apollo AGC Part 23: Flying realistic Apollo 11 moon landings with the Apollo Guidance Computer

Apollo AGC Part 23: Flying realistic Apollo 11 moon landings with the Apollo Guidance Computer

We've built a LM! Almost: Mike has hooked the AGC to a LM simulation from the Orbiter/NASSP program. Which is a very good simulation. So good, we can re-enact Apollo 11 landings to a high degree of fidelity, with the LM piloted by a real AGC running the original Apollo 11 rope. Just as back then, it still requires quite a bit of piloting skill and nerves of steel. Two landings in this long video: the first one is a "nominal" Apollo landing to explain things. The second one is a hair raising Apollo 11 re-enactment landing with 1202 errors and the actual Apollo astronauts calls from the radio recordings weaved in. Seat back a enjoy the show.

Apollo AGC Part 20: Electroluminescent DSKY display and PIPA accelerometers

Apollo AGC Part 20: Electroluminescent DSKY display and PIPA accelerometers

Now that our AGC works, we rush to integrate the splendid electro-luminescent DSKY display that Ben Krasnow made for us. I also build a rudimentary PIPA accelerometer device so we can try to demonstrate the entire landing programs sequence on our AGC before the Apollo 11 landing 50th anniversary festivities. Some relevant links: Playlist of the restoration series: https://www.youtube.com/playlist?list=PL-_93BVApb59FWrLZfdlisi_x7-Ut_-w7 Block I AGC period documentary: https://youtu.be/ndvmFlg1WmE Inertial navigation system documentary: https://youtu.be/wD97RSpiZe0 Schematics: https://www.ibiblio.org/apollo/links.html#AGC_electrical_schematics and: https://archive.org/details/agc_handbook_jp2 Mike's AGC backplane viewer: http://apolloguidance.computer/2003100_071/pins AGC software repo: https://github.com/virtualagc/virtualagc The Ultimate Apollo Guidance Computer Talk: https://youtu.be/xx7Lfh5SKUQ

Apollo AGC Part 19: Restoration complete!

Apollo AGC Part 19: Restoration complete!

We were are able to make the original erasable core memory work, under the watchful eye of guests more famous than us. This completes the restoration of the AGC. In the process we dump the historical content that was still present in the memory module and find all kinds of interesting things. Frequent comment answers: Yes we know about Francois Rautenbach and the Block I core ropes (https://youtu.be/WquhaobDqLU). These ropes are also from Jimmie but are not compatible with our Block II computer. Yes we are in contact with Fran https://youtu.be/UjcfepTdvZI (and several others) about their superb DSKYs replicas. Some relevant links: Playlist of the restoration series: https://www.youtube.com/playlist?list=PL-_93BVApb59FWrLZfdlisi_x7-Ut_-w7 Block I AGC period documentary: https://youtu.be/ndvmFlg1WmE Inertial navigation system documentary: https://youtu.be/wD97RSpiZe0 Schematics: https://www.ibiblio.org/apollo/links.html#AGC_electrical_schematics and: https://archive.org/details/agc_handbook_jp2 Mike's AGC backplane viewer: http://apolloguidance.computer/2003100_071/pins AGC software repo: https://github.com/virtualagc/virtualagc The Ultimate Apollo Guidance Computer Talk: https://youtu.be/xx7Lfh5SKUQ

Apollo AGC Part 21: Playing moon landing on our restored Apollo Guidance Computer!

Apollo AGC Part 21: Playing moon landing on our restored Apollo Guidance Computer!

The repaired AGC should provide us with 1960's best real life video game ever. Thanks to our improvised PIPA accelerometer, we can now trick the AGC into thinking it's flying a LM. We fly through the whole landing sequence: program P63, braking, P64 approach, and P65 landing. We don't quite fly it in a closed loop as intended, and the landing is soft only in one direction, but that is the hell of a video game. Some relevant links: Playlist of the restoration series: https://www.youtube.com/playlist?list=PL-_93BVApb59FWrLZfdlisi_x7-Ut_-w7 Block I AGC period documentary: https://youtu.be/ndvmFlg1WmE Inertial navigation system documentary: https://youtu.be/wD97RSpiZe0 Schematics: https://www.ibiblio.org/apollo/links.html#AGC_electrical_schematics and: https://archive.org/details/agc_handbook_jp2 Mike's AGC backplane viewer: http://apolloguidance.computer/2003100_071/pins AGC software repo: https://github.com/virtualagc/virtualagc The Ultimate Apollo Guidance Computer Talk: https://youtu.be/xx7Lfh5SKUQ

Apollo AGC Part 18: Module B11 rescue, Apollo 13 style

Apollo AGC Part 18: Module B11 rescue, Apollo 13 style

After having repaired two diode faults in our potted current switch module B11, we discovered a third fault. This time it's a short, and at the worst possible place. We'll need a good dose of ingenuity to save the day. Some relevant links: Playlist of the restoration series: https://www.youtube.com/playlist?list=PL-_93BVApb59FWrLZfdlisi_x7-Ut_-w7 Block I AGC period documentary: https://youtu.be/ndvmFlg1WmE Inertial navigation system documentary: https://youtu.be/wD97RSpiZe0 Schematics: https://www.ibiblio.org/apollo/links.html#AGC_electrical_schematics and: https://archive.org/details/agc_handbook_jp2 Mike's AGC backplane viewer: http://apolloguidance.computer/2003100_071/pins AGC software repo: https://github.com/virtualagc/virtualagc The Ultimate Apollo Guidance Computer Talk: https://youtu.be/xx7Lfh5SKUQ

Apollo AGC Part 22: Module B11 fails again!

Apollo AGC Part 22: Module B11 fails again!

Shortly after being fully repaired, the AGC suddenly fails on us. It's our famed potted module B11 again. In another schematics deep dive, Mike finds the likely failing component. And we catch one of its diodes right when it dies. More module digging in perspective. Some relevant links: Playlist of the restoration series: https://www.youtube.com/playlist?list=PL-_93BVApb59FWrLZfdlisi_x7-Ut_-w7 Block I AGC period documentary: https://youtu.be/ndvmFlg1WmE Inertial navigation system documentary: https://youtu.be/wD97RSpiZe0 Schematics: https://www.ibiblio.org/apollo/links.html#AGC_electrical_schematics and: https://archive.org/details/agc_handbook_jp2 Mike's AGC backplane viewer: http://apolloguidance.computer/2003100_071/pins AGC software repo: https://github.com/virtualagc/virtualagc The Ultimate Apollo Guidance Computer Talk: https://youtu.be/xx7Lfh5SKUQ

Apollo AGC Part 14: Bringing up fixed rope memory

Apollo AGC Part 14: Bringing up fixed rope memory

We bring up the first memory section, fixed core rope memory. This is the "ROM" that holds the programs. Although based on ferrite cores, this is read-only and very different from the erasable core memory. Our AGC actually did not come with flight rope modules, but instead with a pair of Raytheon boxes used during development for simulating the final ropes. Unfortunately these boxes are undocumented and of much lesser build quality than the flight hardware, which should keep us on our toes. Thanks to our sponsors Samtec for the connector pins and PCBway for the monitor PCB: https://www.pcbway.com Full video of Mike's explanation here: https://youtu.be/NNlgJ52wuGE

Apollo AGC Part 1: Restoring the computer that put man on the Moon

Apollo AGC Part 1: Restoring the computer that put man on the Moon

We embark on the restoration of a very rare and historically significant machine: the Apollo Guidance Computer, or AGC. It was the revolutionary MIT-designed computer aboard Apollo that brought man on the Moon (and back!). Mike Stewart, space engineer extraordinaire and living AGC encyclopedia, spearheads this restoration effort. In this first episode, we setup a makeshift lab in his hotel room, somewhere in Houston. The computer belongs to a delightful private collector, Jimmie Loocke, who has generously allowed us to dive in the guts of his precious machine, with the hope of restoring it to full functionality by July 2019, the anniversary of the Apollo 11 Moon Landing. Frequent comment answers: Yes we know about Francois Rautenbach and the Block I core ropes (https://youtu.be/WquhaobDqLU). These ropes are also from Jimmie and not compatible with our Block II computer Yes we are in contact with Fran https://youtu.be/UjcfepTdvZI (and several others) about their superb DSKYs replicas. Some relevant links: Playlist of the restoration series: https://www.youtube.com/playlist?list=PL-_93BVApb59FWrLZfdlisi_x7-Ut_-w7 Block I AGC period documentary: https://youtu.be/ndvmFlg1WmE Inertial navigation system documentary: https://youtu.be/wD97RSpiZe0 Schematics: https://www.ibiblio.org/apollo/ElectroMechanical.html and: https://archive.org/details/agc_handbook_jp2 Mike's AGC backplane viewer: http://apolloguidance.computer/2003100_071/pins AGC software repo: https://github.com/virtualagc/virtualagc The Ultimate Apollo Guidance Computer Talk: https://youtu.be/xx7Lfh5SKUQ

Apollo AGC Part 10: Mike flies Apollo 11’s P63, lunar landing, on his AGC hardware replica

Apollo AGC Part 10: Mike flies Apollo 11’s P63, lunar landing, on his AGC hardware replica

Mike Stewart flies Apollo 11 P63, lunar landing, using his new AGC monitor and his gate-exact AGC replicas. This episode is made possible by our sponsor PCBWay (https://www.pcbway.com/anniversary5sales.html, right now celebrating their 5th Anniversary, 5000 sets gifts+ free coupons giveway+ lucky draw!). The AGC monitor replica, a key piece of AGC ground test equipment used by MIT for debugging the AGC, has been built in preparation for our upcoming next encounter with the real AGC. Mike's FPGA AGC code and board project files are available online: AGC FPGA Replica: https://github.com/thewonderidiot/rotinom AGC FPGA Test Monitor: https://github.com/thewonderidiot/agc_monitor Bonus: AGC Verilog Simulation https://github.com/virtualagc/agc_simulation

Asian Gangster Crips AGC NorthSide Family - MEAN MUG

Asian Gangster Crips AGC NorthSide Family - MEAN MUG

SHOT IN THE NORTH SIDE OF ATLANTA VICKZ, BIZZY LOCC This is not my video. Taken from Jesse Llenas channel. Tiny Raskals Gang TRG, AGC, VBZ, ABZ, EBK, LCV Crips

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