Post AaMjSFdvHTG9weZhvU by tpolecat@mastodon.social
 (DIR) More posts by tpolecat@mastodon.social
 (DIR) Post #AaMjSAT6WGdPteTUrw by tpolecat@mastodon.social
       2023-09-24T19:24:00Z
       
       1 likes, 1 repeats
       
       3.5h and the bottom half and keyboard case look like new. Top half goes in now. They should match in a few hours.
       
 (DIR) Post #AaMjSBG1aNlaLNMZ7Y by tpolecat@mastodon.social
       2023-09-24T22:08:51Z
       
       1 likes, 1 repeats
       
       Man. It took all freakin day but the case looks great.
       
 (DIR) Post #AaMjSDWl98LDNrCxU0 by tpolecat@mastodon.social
       2023-09-26T01:22:17Z
       
       1 likes, 0 repeats
       
       Look how pretty these drives are.
       
 (DIR) Post #AaMjSECwcI5LUgweEi by tpolecat@mastodon.social
       2023-09-27T02:27:14Z
       
       1 likes, 0 repeats
       
       It boots! Ok first order of business (before I even put the case back together) is to copy the 40+ year old system disk onto, uh, another 40+ year old disk, which is all I have on hand. Need to find some new(er) old stock.The screen is green phosphor. I don't know why the middle part looks blue on camera.
       
 (DIR) Post #AaMjSEuC1UgDepBBeC by tpolecat@mastodon.social
       2023-09-27T02:32:24Z
       
       1 likes, 0 repeats
       
       Back together. Next task is to get Zork running.
       
 (DIR) Post #AaMjSFdvHTG9weZhvU by tpolecat@mastodon.social
       2023-09-29T01:50:08Z
       
       1 likes, 0 repeats
       
       With much trial and error and confusion I was able to construct the required not-quite-null modem and bootstrap Kermit via hex files, then move on to more important things.
       
 (DIR) Post #AaMjSGK6kd0I3UJOgC by tpolecat@mastodon.social
       2023-10-02T14:23:03Z
       
       0 likes, 0 repeats
       
       The Osborne 1 Technical Manual is 589 pages long and includes disassembly instructions, explanations of every subsystem, full schematics and parts lists, data sheets for key parts like the disk and IO controllers, and full commented ROM source.
       
 (DIR) Post #AaMjSH3U1vIeKDXdPE by tpolecat@mastodon.social
       2023-10-02T14:30:52Z
       
       2 likes, 4 repeats
       
       2023: warranty void if opened1982: here's how to hack the clock divider to get 9600 baud
       
 (DIR) Post #AaMsHjSYyv6Up2JvpQ by tpolecat@mastodon.social
       2023-09-23T01:00:44Z
       
       0 likes, 0 repeats
       
       All three Rifa capacitors on this power supply are cracked and probably would have blown up at some point. Luckily I have been watching a lot of #retrocomputing videos and knew to keep an eye out for them. Anyway, here begins a new project thread 🧵 so prepare accordingly.
       
 (DIR) Post #AaMsHkfMUow4Z1JfPs by tpolecat@mastodon.social
       2023-09-24T16:05:40Z
       
       1 likes, 0 repeats
       
       definitely on some kind of watchlist at this point
       
 (DIR) Post #AaMsHthSuMxwa9MyRc by tpolecat@mastodon.social
       2023-09-24T16:25:00Z
       
       1 likes, 0 repeats
       
       Right. So the plan for today is to use a sunny peroxide bath to bleach away the yellowing on this Osborne 1 case. The bricks are just for displacement (they're cheaper than peroxide by volume).