16 May
2015
16 May
'15
6:35 p.m.
Many Thanks for the HP 1000 interface board manual... We have the old
one here at the museum with the 2115, 2116 etc but it has gotten
brittle on the back binding and if we do not have to open it.......
At one time when we would building voice boards to the 2000/1000
series back then we had scored a batch of blank IO proto boards with the
buss tag traces on them.. be interesting to see if I saved any...
Thanks ! Ed# _www.smecc.org_ (http://www.smecc.org)
In a message dated 5/16/2015 3:42:18 P.M. US Mountain Standard Time,
pbirkel at gmail.com writes:
That is a *really* nice document, in so many ways. Thanks for sharing,
and
for the answers to earlier questions :->.
On Thu, May 14, 2015 at 11:31 AM, J. David Bryan <jdbryan at acm.org> wrote:
On Thursday, May 14, 2015 at 1:46, Paul Birkel
wrote:
any
What do they recommend on the receiver-end?
LSTTL with a 4.7K pulldown to -2V on the input.
Is the "HP 1000 M/E/F-Series Computers I/O
Interfacing Guide"
(02109-90006 September 1980) available online somewhere?
I thought I had sent it to Al some years ago, but it's not listed. In case, I've posted it here:
http://home.earthlink.net/~jdbryan/dropbox/02109-90006_Sep-1980.7z
See chapter 5, pages 5-5 and 5-6.
-- Dave