CuriousMarc
@curious_marc
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CuriousMarc from the YouTube Channel, vintage space, test, and computer electronics restorations
California, USA
Joined January 2019
I am leaving X and have moved over to BlueSky. My user name is CuriousMarc and my handle is @curiousmarc.bsky.social (@kenshirriff and @TubeTimeUS have moved over there too)
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May the 4th retro-computing hack. I know. There was a wrinkle in space time, and I am one day late 🫤. Hopefully it still counts. Original full length video from 2019 here: #Maythe4thBeWithYou #Retro #Computing #Hacks
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My Teletypes attempt to sing Jingle Bells for you (you need the sound for this one). And they wish you a very merry #retrotech Christmas!
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I will be attending and speaking at the Hackaday Supercon in Pasadena, CA Nov 3-5. Come say hi!
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@DJSnM Here is the complete Nascom network. There is a lot more to it than the writer of this article does not appear to know nor understand. He was sure involved in a sub link part of it, but does not appear to have a grasp of the whole system.
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@DJSnM The only thing that would make sense is that they used the 48 kb/s digital link to transmit the high bit rate downlink telemetry data back to Houston, which was 51.2 kb/s in its raw form from the moon, but was probably massaged down to fit in 48 kb/s after local decoding.
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@DJSnM This story does not seem accurate. NASA didn’t transmit video over 48 kb/s digitized data. The video transmission circuits were analog and completely separated from voice and data.
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@DJSnM The Polaris guidance system was the inspiration/ancestor for the Apollo guidance system.
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@jeriellsworth @merklegroot @tiltfive That was June from Nybble and Bytes powering up her "new" HP 21MX for the first time. It came up, we got some blinken lights and a responsive front panel! Machine is from 1976. It has 32k of memory (!) with none of it working, as we quickly found out.
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And @kenshirriff and myself will also be speaking tomorrow (Friday) about the Apollo Guidance Computer restoration and the DSKY panel relight, which we will be demonstrating live.
Eric @TubeTimeUS and Windell (EMS) will be speaking at VCF West tomorrow (Friday, August 4), in an interview about the book Open Circuits ( ). VCF West is at the Computer History Museum in Mountain View CA, more info at:
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A new HP box-of-goodness was just delivered to the lab! It’s from 1972! US post office delay I guess 🤷♂️. What’s in it 🤔? Find out in my latest video
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