On Sun, Apr 21, 2019 at 1:33 AM Bill Degnan via cctalk
wrote:
>
> I am fashioning an RGB cable from parts. The computer (LNW80) does not
> send an "intensity" signal, it is only a 6pin rgb. The magnavox rgb 80
> display that I wish to use to receive has a pin for an intensity signal.
> Other tha
I've been compiling and running some Fortran programs on my
microPDP11/53 computer and have questions about Fortran VIRTUAL arrays.
Details: KDJ11-D/S cpu with 0.5 MB of ram, additional 1MB of Qbus ram.
I'm running RT11 V5.7 ZM and using the F77XM compiler, version 5 (I think).
What I am see
I'm hoping to (partially) recreate an 11/70 setup, at least as close
as I can get with what I have on hand (see the first pic in this
gallery that shows the 11/70 advert):
https://imgur.com/a/pvgUVmg
I don't have the right masthead but I'm wondering if on a real 11/70
there is a 5mm gap between t
I'm not sure what needs to be done but almost sure a resistor to ground is not
likely to be the answer. Give it a try without it first.
Dwight
From: cctalk on behalf of Bill Degnan via
cctalk
Sent: Saturday, April 20, 2019 5:33 PM
To: General Discussion: On-Top
I am fashioning an RGB cable from parts. The computer (LNW80) does not
send an "intensity" signal, it is only a 6pin rgb. The magnavox rgb 80
display that I wish to use to receive has a pin for an intensity signal.
Other than "intensity" the rgb signals can be matched up.
Question...what happens
Hi again,
Is there anyone within ~100 miles of the NYC area with a working IBM
Displaywriter? I haven't found any more info on the signaling that goes
over the DB37 data cable, and I would like to use my portable logic
analyzer to sniff out some basics:
- Boot
- File Read
- File Write
A
Picked one up, it is the last generation of 3274-style controllers before they
went to 3174-style ca. 1988.
I'd like to find manuals and the IPL diskette (1.2mb).
The unit actually had an IPL floppy, but it disintegrated trying to recover it
(there is signs of
rust inside the hardware so the whol
On Fri, Apr 19, 2019 at 5:46 AM Noel Chiappa via cctalk <
cctalk@classiccmp.org> wrote:
> where the description of the invention of 3-wire core can be found on pg.
> 231; it was invented by a group of engineers, based on a similar idea used
> in
> Stretch. There is indeed a patent, No. 3,381,282,
