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  1. K

    Found pdp modules

    When I was throwing away trash at the dump, I saw ~10 pdp modules 35x35cm in size and a TK50 tape drive, along with ~30 IC DIP sockets. They are dated from 1982 and have "digital" on them. The boards also had labels such as "VCO" and "4MB memory." Unfortunately there was no main motherboard...
  2. K

    Found 3 old external modems

    Today I found 3 old external modems, since I was thinking of starting an old computer collection: -DECmodem V32 Prototype evaluation version (had a confidentiality notice with stickers on it) -DEC Scholar Plus -Hayes Optima 288 What should I do with them? Is it even worth keeping them (I don't...
  3. K

    Need help id'ing hardware-drum memory?

    Sorry I don't have pix, but I have this small metal box that I think is a drum memory module. It has "Made in USSR" (in Russian) stamped on it with an infinite amount of serial numbers. It has 2 vaccuum tubes on it, located in a special metal holder. When I took the cover off, I saw this round...
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