PDP-8 /e/f/m memory

Allison ajp166 at bellatlantic.net
Tue Aug 15 19:58:11 CDT 2006


>
>Subject: Re: PDP-8 /e/f/m memory
>   From: "Ethan Dicks" <ethan.dicks at gmail.com>
>   Date: Wed, 16 Aug 2006 12:13:16 +1200
>     To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org>
>
>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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