Gregory's ServerThe Shuttle teleprinter kept the four logic boards from the military teleprinter: the CPU board, print control board, communication board, and memory board. These implemented a 6800-based microprocessor. 8/12
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 The teleprinter was mounted in a storage locker in the Shuttle middeck, one level below the flight deck. 9/12 We managed to get the printer operational. This wasn't easy because the rubber rollers had turned to liquid, gumming up the mechanism. CuriousMarc carefully disassembled the printer, cleaned all the parts, and realigned the hammers. 10/12 For details (including schematics), see my blog post https://www.righto.com/2024/08/space-shuttle-interim-teleprinter.html Credits: printer restoration done with CuriousMarc, @tubetime, and Mike Stewart. Printer provided by Marcel. Shuttle photos from catalog.archives.gov. Locker photo from DMolybdenum, drawing from the military teleprinter manual. @kenshirriff @tubetime that is incredibly cool. It’s a shame the YouTube video wasn’t longer showing the reverse engineering effort undertaken. I love all your work as it’s quite extraordinary what was built so quickly with such engineering skills. @plambrechtsen @tubetime CuriousMarc will make a video on the restoration at some point. @kenshirriff @tubetime your AGC rebuild series is still one of my favourite on YouTube. @kenshirriff @kenshirriff @tubetime Wonderful restoration! Tangentially related, I read that the optional copier for the DEC VT52 used electrolysis to print onto damp paper using a helical electrode on a spinning drum. I found drawings and docs, but as far as I can tell, there are no working units that have been demonstrated on video anywhere. Would be really cool to see that in action! Very few terminals seem to have ’add water’ as a regular maintenance item 😄   @glowl What could go wrong with bees on a Space Shuttle? Appropriately, the experiment was sponsored by HONEYwell. Photo from https://airandspace.si.edu/collection-objects/bee-enclosure-module-sts-41-c/nasm_A19880031000 @kenshirriff i remembered there being something real about that, i assume the "bees" in the picture i initially answered to is an acronym for something else?  @kenshirriff these old designs are amazing, real time data processing with a hundred hardware actuators all on a ~1 MHz 8-bit CPU, 4K ROM and 4K RAM. These days you can buy watches with several GHz class CPUs and a couple of gigabytes of RAM. |
@kenshirriff
I love these boards!