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13708Re: [midatlanticretro] MARCH's PDP 11/05's

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  • Jim Scheef
    Aug 2, 2009
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      It's fabulous that you got them both to do anything!


      B Degnan wrote:
      > All,
      > I was able to take apart and clean the two MARCH PDP 11/05's. They're
      > both essentially identical 4K core RAM systems. One has a stuck 7th
      > databit in most address locations, but the other 4K Core memory card is
      > OK. With the good card I can call/write/retrieve memory along the 4K
      > pages on either machine. If we can find another RAM card they'd both be
      > usable. One of the two also has a serial interface card set to 300 baud
      > (I believe). There is no OS, so that's about as far as I can go with it
      > short of toggling in a boot strap etc.
      > Bill
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