Gregory's Serveranother early morning electronics flea market! this is in silicon valley (Saratoga) and it is the last one of the year. 🧵
 62 comments
power supply from a tek 2465. sadly the fan motor bearing is worn out. (Tek made a fully custom 2-phase fan motor that's impossible to find)   what did i buy? well, i bought this Micro Switch keyboard. 53SW1-8. i'll have to find keycaps. apparently it uses 2SW keycaps. i picked up this Seagate ST-251N which is the SCSI version of the 251 drive I've reverse engineered. I haven't documented the control board in this one yet. and i got a type 2 planar for an IBM PS/2 Model 80. this one is meant to run a 386 at 20MHz. i could use it to upgrade my model 80 which has the slower type 1, 16MHz planar. (there's a whole story about the type 1 needing matched memory cycles and the type 2 not needing that)  @tubetime Weird place for the 7. Does it come from a keyboard with the numpad on the alphabetical keys?  @tubetime Hall effect? Honeywell had some nice kryboards in the 80s.  @tubetime loving the "Z80 Inside" cards ... the popularity of older electronics based on a recently defunct processor is exciting.  @tubetime I still don't need much more processing power than those machines offered.   @tubetime huhuh I understood that reference, and I think I know which thermostat you're referring to. Even I did a double take. I had one of these, that's a Z-158 if I'm guessing right. lovely systems, no motherboard just a bus connector to put all of the parts into. with a new PAL chip the memory board can take 256K DRAMs for a RAM disk, which was very exciting compared to running programs from floppies.   @tubetime If you find a giant pile of used keyboards for super cheap, We'd pay freight! (@hiveboston uses them for Constructive Destruction workshops)  @tubetime Jelly! Always enjoy seeing your pictures from these. Are there any other flea markets in other locations in Oct? @tubetime I need to get one of those metal j-poles again, I gave mine away when I moved cross county and regret it! @tubetime I wish I lived within driving distance of this. It is probably good that I don't. Thank you for the pictures |
MacBooks!