DEC H-500 Computer Lab pins and docs (was Re: Straight 8 up on Ebay just now)

william degnan billdegnan at
Tue Jul 19 10:32:53 CDT 2016

On Tue, Jul 19, 2016 at 11:29 AM, Ethan Dicks <ethan.dicks at> wrote:

> On Tue, Jul 19, 2016 at 5:01 AM,  <COURYHOUSE at> wrote:
> >  also  a Rare Digital DEC H-500 Computer Lab, 1960s, Same  Switches as
> > PDP-8/I, Vintage  for 700+
> >
> > ( we have an extra one of these Computer Lab, if  anyone here  is
> > interested)
> Does anyone have a modern source of pins that fit the socket holes in
> the Computer Lab?  ISTR there are a few of us here who have an H-500,
> but very few, or no, patch cables.  I think Molex pins have been tried
> and rejected.
> Also, the 1969 Computer Lab Handbook is on bitsavers (in
> 'dec/handbooks').  I recall a 8.5"x11" book on the Computer Lab, newer
> layout, probably a 1970s publication date, possibly a teacher's guide.
> I was given one as a kid, but it vanished decades ago.  Anyone
> remember this?  Anyone have one for scanning?
> -ethan

I have the Computer Lab Workbook, not Handbook.  Maybe that's what you're
looking for.
@ BillDeg:
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