PDP-8 /e/f/m memory

Douglas Taylor dj.taylor at starpower.net
Wed Aug 16 19:24:43 CDT 2006


Is it a bad idea to try and salvage/reuse the DC021 bus transceivers off 
the CXY08 boards that seem to be so common and useless?
Doug


> >On 8/15/06, vrs <vrs at msn.com> wrote:
> >> From: "Ethan Dicks" <ethan.dicks at gmail.com>
> >> > OK.  Is a DEC005 OMNIBUS-friendly?  We used them on our Qbus COMBOARD,
> >> > so that's the context I think of them in.
> >>
> >> Interesting question, even though I'd never design in a DEC005.  They are
> >> made of even more unobtainium than the regular tranceivers!
>
>I have a selection of DEC0XX parts on hand from my days in the mill.
>
> >Agreed.  I have a few, but I used to make Qbus cards.  For most folks,
> >the only source is other cards.
>
>Or plain TTL.  LS241 is a good reciever for Q, U or Omnibus (Schmitt inputs)
>and 74LS38 makes a good open collector driver.  There are others.
>
>Allison




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