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

Karl-Wilhelm Wacker kwwacker at
Tue Jul 19 11:25:27 CDT 2016

Does anyone have one of the patch cables, and can they measure the diameter 
of the pin and it's length?

Also, is it a straight pin or like a bannana jack with springy sides?

There is a company that makes almost any type of 
pin/socket  that you can think of -
take a look thru their con-line catalog.


----- Original Message ----- 
From: "william degnan" <billdegnan at>
To: "General Discussion: On-Topic and Off-Topic Posts" 
<cctalk at>
Sent: Tuesday, July 19, 2016 11:32 AM
Subject: Re: DEC H-500 Computer Lab pins and docs (was Re: Straight 8 up on 
Ebay just now)

> 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:
> Web:
> Twitter: @billdeg <>
> Youtube: @billdeg <>
> Unauthorized Bio <> 

More information about the cctalk mailing list