Results 1 to 3 of 3

Thread: ROM & RAM for PET 2001-8C (MPS 6540 013, 6550 RAM)

  1. #1

    Default ROM & RAM for PET 2001-8C (MPS 6540 013, 6550 RAM)

    Would like to restore the PET to it's original shape if possible so I thought I'd ask if there are original parts before building or buying adapters.

    My 013 ROM is broken, tested them with my Willem programmer after building an adapter on breadboard, all came out fine except the 013 that glitches somewhere on every read.

    Also need at least one 6550 RAM, haven't found a good 100% sure way to test these yet so it's uncertain if the rest is OK. Thinking of building a RAM tester with a PIC-processor or something...
    Last edited by e5frog; 30th December 2015 at 17:05.

  2. #2
    SAM55's Avatar
    Join Date
    Jul 2013
    Country
    The Netherlands
    Region:
    Noord Holland
    Posts
    126
    Feedback
    21 (100%)

    Default

    You can test the 6550 RAM chips in the video ram socket(s).

    Regards, SAM

  3. #3
    patzik's Avatar
    Join Date
    Mar 2013
    Country
    The Netherlands
    Region:
    NH
    Posts
    40
    Feedback
    3 (100%)

    Default

    Coincidence is I just ordered some pcb's to build the 6502 ram/rom board. First one was finished last week.
    I'm guessing you know enough about these, interested then pm me.

Similar Threads

  1. Sold VD-2001 24 bit digitizer
    By Exilent in forum Amiga
    Replies: 3
    Last Post: 31st January 2016, 09:11
  2. Sold Philips Odyssey 2001
    By soeter04 in forum Other
    Replies: 3
    Last Post: 16th September 2015, 12:48
  3. Closed Philips Odyssey 2001
    By soeter04 in forum Sales Archive
    Replies: 1
    Last Post: 9th June 2014, 18:35
  4. Sold PET 2001-8C with Business keyboard
    By Exilent in forum Sales Archive
    Replies: 8
    Last Post: 12th August 2013, 23:15
  5. Sold Old PC Laptop - PIII 600mhz Fujitsu Siemens E-6540
    By edd_jedi in forum Other
    Replies: 5
    Last Post: 6th July 2013, 12:17

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •