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Thread: Pet Rescue

  1. #21
    Join Date
    Dec 2012
    Location
    Brandon, FL
    Posts
    126

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    I would actually prefer SMD versions LOL..

    I'm actually thinking of using the bad pcb(s) to make a all in 1 rom replacement that will also support basic 4.0 on the 2001/2001N , you will need to socket the 74ls154 but will only need one rom board, no 74ls138 as mike pointed out you don't need it, the Pet only uses two of the CS lines.. and one of those can be converted to an address select line allowing 1 rom socket to replace 2 6540(s).

  2. #22
    Join Date
    Dec 2012
    Location
    Brandon, FL
    Posts
    126

    Default

    And thanks for the Quick Reply lastnight.

  3. #23
    Join Date
    Apr 2009
    Location
    Iowa, USA
    Posts
    114

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    I'll put the PCB files for the SMT version on github (the TH versions are there), as still have them.

    And yes, depending on use case, the '138 is not needed, but I made the adapter to be use-agnostic.

    Jim

  4. #24
    Join Date
    Dec 2012
    Location
    Brandon, FL
    Posts
    126

    Default

    Quote Originally Posted by brain View Post
    I'll put the PCB files for the SMT version on github (the TH versions are there), as still have them.

    And yes, depending on use case, the '138 is not needed, but I made the adapter to be use-agnostic.

    Jim
    Cool ! Thanks for sharing.

  5. #25
    Join Date
    Dec 2005
    Location
    Toronto ON Canada
    Posts
    7,339

    Default

    Quote Originally Posted by ki4swy View Post
    Cool ! Thanks for sharing.
    ... and thanks for solving the mystery !

    (All my DIP 6540 adapters are V2.0

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