1 Dec
2014
1 Dec
'14
5:36 p.m.
From: Kyle Owen
I've got a couple M1705 dual 12-bit output cards
for the Omnibus. Does
anyone have schematics or programming information available? I checked
bitsavers, but I didn't see anything in the obvious places
They're in the DEC Logic Handbook; in the 1976-77 edition, they are on pp.
227-231. If you can't find it online, Topline has one for sale cheap:
http://www.ebay.com/itm/321490489267
If you really need it right away, I suppose I could crunch the book into my
scanner and scan those pages.
Noel
1 Dec
1 Dec
6:21 p.m.
From: Noel Chiappa: Monday, December 01, 2014 5:36 PM
They are also described in the 1975-76 edition, which is available on
bitsavers:
http://www.bitsavers.org/pdf/dec/handbooks/Digital_Logic_Handbook_1975-76.p…
The M1705 description starts on handbook page 281 (PDF page 295).
Vince
From: Kyle
Owen
I've got a couple M1705 dual 12-bit output cards for the Omnibus. Does
anyone have schematics or programming information available? I checked
bitsavers, but I didn't see anything in the obvious places
They're in the DEC Logic Handbook; in the 1976-77 edition, they are on pp.
227-231. 
8:10 p.m.
On Mon, Dec 1, 2014 at 8:21 PM, Vincent Slyngstad <vrs at msn.com> wrote:
From: Noel Chiappa: Monday, December 01, 2014 5:36 PM
Thanks Noel and Vince. I got my 1973-74 edition off the shelf, only to find
that it didn't have the M1705 (M1703 and M1709 were the closest).
Looks like the LAB-8/E did not utilize the M1705, but rather the M863, for
any digital output. Of course, the M863 includes digital input as well.
Kyle
They're in the DEC Logic Handbook; in the 1976-77 edition, they are on pp.
227-231.
They are also described in the 1975-76 edition, which is available on
bitsavers:
http://www.bitsavers.org/pdf/dec/handbooks/Digital_Logic_
Handbook_1975-76.pdf
The M1705 description starts on handbook page 281 (PDF page 295).
9:01 p.m.
On Mon, Dec 1, 2014 at 10:10 PM, Kyle Owen <kylevowen at gmail.com> wrote:
Thanks Noel and Vince. I got my 1973-74 edition off the shelf, only to
find that it didn't have the M1705 (M1703 and M1709 were the closest).
Looks like the LAB-8/E did not utilize the M1705, but rather the M863, for
any digital output. Of course, the M863 includes digital input as well.
Also, if I want to obtain more information on jumpers (particularly
addressing, etc.), where would this information be? The block diagram in
the Logic Handbook shows a few select jumpers, but does not give a detailed
list of the 32 jumpers, if I counted correctly.
Thanks again,
Kyle
9:24 p.m.
Hi Kyle,
I'd have to do some checking, but the M1705 might have been tied into the
PDP14 industrial control. A bit foggy about it right now.
Thanks, Paul
On Mon, Dec 1, 2014 at 11:01 PM, Kyle Owen <kylevowen at gmail.com> wrote:
On Mon, Dec 1, 2014 at 10:10 PM, Kyle Owen
<kylevowen at gmail.com> wrote:
Thanks Noel and Vince. I got my 1973-74 edition off the shelf, only to
find that it didn't have the M1705 (M1703 and M1709 were the closest).
Looks like the LAB-8/E did not utilize the M1705, but rather the M863,
for
any digital output. Of course, the M863 includes
digital input as well.
Also, if I want to obtain more information on jumpers (particularly
addressing, etc.), where would this information be? The block diagram in
the Logic Handbook shows a few select jumpers, but does not give a detailed
list of the 32 jumpers, if I counted correctly.
Thanks again,
Kyle
3448
days inactive
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days old
4 comments
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participants (4)
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jnc＠mercury.lcs.mit.edu -
kylevowen＠gmail.com -
useddec＠gmail.com -
vrs＠msn.com