2016-09-22 22:24 GMT+02:00 Pete Lancashire :
> I would start looking at the Display DACs (Vol 2 p 2-10, and 2-11) Each
> DAC consists of a 6820 PIA, then LS TTL Latches, diodes, and discrete & dip
> resistor arrays. Then an OP Amp. to do the summing. Today it would all be
> one IC.
>
> In charact
I'll gladly take them if they are still available. Let me know how much the
shipping is to California.
Marc
> On Sep 22, 2016, at 8:43 AM, Noel Chiappa wrote:
>
> Hi, all, I have a HP 7970B/E Tape Unit Diagrams and Parts Manual available; I
> got it with a group of other manuals, and I don't h
I would start looking at the Display DACs (Vol 2 p 2-10, and 2-11) Each
DAC consists of a 6820 PIA, then LS TTL Latches, diodes, and discrete & dip
resistor arrays. Then an OP Amp. to do the summing. Today it would all be
one IC.
In character mode these two DACs set the base position of each char
On 09/22/2016 08:55 PM, devin davison wrote:
Hello, made some progress with the pdp 11/34 I picked up a while back.
Managed to repair the faulty power supply. I am in the process of trying to
get a minimal configuration of the machine up and running.
I am looking for a short program to key in to
> From: Devin Davison
> I am looking for a short program to key in to try and test the
> functionality of the cpu.
"BRANCH ." is always a good one - 0777. If that runs, much of the CPU is
functional, and any errors found from there should be pretty easy to track
down.
> Is there
Hello, made some progress with the pdp 11/34 I picked up a while back.
Managed to repair the faulty power supply. I am in the process of trying to
get a minimal configuration of the machine up and running.
I am looking for a short program to key in to try and test the
functionality of the cpu. Is
On Thu, Sep 22, 2016 at 6:56 PM, Glen Slick wrote:
> Would have been nice if Signetics had put that information into their
> databooks / datasheets.
The original 82S173 predated the JEDEC JESD3 standard for PLD fuse
data, so numbers weren't assigned. They probably just kept copying the
same diagr
On Thu, Sep 22, 2016 at 5:30 PM, Al Kossow wrote:
> there is a better diagram on page 70 of
> 981-0251_ProgrammableLogicDiagramPackage_Sep90.pdf
> under dataIO which gives the fuse number
Excellent. That is exactly what I was trying to find. Thank you.
Would have been nice if Signetics had put t
there is a better diagram on page 70 of
981-0251_ProgrammableLogicDiagramPackage_Sep90.pdf
under dataIO which gives the fuse number
On 9/22/16 4:23 PM, Glen Slick wrote:
> A Signetics PLS173 PLA has a total of 2178 programmable fuses:
>
> (32 AND gates for logic terms plus 10 AND gates for contr
On Thu, 22 Sep 2016 13:30:22 -0500
Jules Richardson wrote:
> On 09/21/2016 06:45 PM, Lyle Bickley wrote:
> > I'm cleaning out my library of manuals and books I no longer need
> > and before I recycle these particular IBM manuals, I thought
> > someone on cctalk might find them useful. They are fr
A Signetics PLS173 PLA has a total of 2178 programmable fuses:
(32 AND gates for logic terms plus 10 AND gates for control terms)
times
(24 true/complement inputs plus 20 true/complement inputs/outputs)
= 1848 fuses
(10 OR gates)
times
(32 AND gates logic term outputs)
= 320 fuses
10 fuses for t
> >
> > http://sendvid.com/k4s7k806
> >
> > This link took me a fake virus warning honey trap.
I searched for a easy video upload service and found no evidence that this
one would be harmful.
But if there is other recommendations around I happily use that. No logins
though.
/Mattis
>
> -- Charl
I'm not sure that I'm comfortable asking this, but here goes
I ran into the famous Michael Holley (www.swtpc.com) at VCF West and had a
pleasant conversation. I've emailed him several times at the address on his
web page, but haven't had a reply. I'm wondering if he ever hangs out on
cctech an
On 9/22/2016 12:08 PM, Charles Anthony wrote:
Before the smoke escaped I recorded this short videoclip to show the
behavior when typing on the machine and running simple PRINT/GOTO program.
http://sendvid.com/k4s7k806
This link took me a fake virus warning honey trap.
-- Charles
Sendvid m
>
>
> Before the smoke escaped I recorded this short videoclip to show the
> behavior when typing on the machine and running simple PRINT/GOTO program.
>
> http://sendvid.com/k4s7k806
>
> This link took me a fake virus warning honey trap.
-- Charles
>>
>> Snip..
>
> The beam is required to stay at one location for a certain time and
> intensity to be stored in the CRT. If it's moved, or if the intensity is
> too low, it will not be stored.
> The cursor is set to a lower intensity so it can be seen on the CRT,
> flashing, but will not store. Ch
On 09/21/2016 06:45 PM, Lyle Bickley wrote:
I'm cleaning out my library of manuals and books I no longer need and
before I recycle these particular IBM manuals, I thought someone on
cctalk might find them useful. They are free for the shipping and
packaging cost - local pickup gets priority ;)
for people that care, I'll be rescanning that series of HP manuals using my
long page
scanner at 600dpi. They are sitting on the pile next to the scanner right now.
I'm trying to decide if I want to attempt getting my 7970 with a dual 7/9 track
head
running this year.
On 9/22/16 8:43 AM, Noel
Hi,
As per the subject, I'm wondering if anyone has a spare MXV11 that they would
be willing to part with.
It's going in 2x4 (H9281) enclosure, where I'm currently losing two slots to a
mem card and a DLV11-J.
I would prefer the -BF version, so I can run either my 11/23 or the 11/73
processor c
Hi, all, I have a HP 7970B/E Tape Unit Diagrams and Parts Manual available; I
got it with a group of other manuals, and I don't have any use for it.
I'd prefer to get something in return for it (some PDP-11 manual/print I don't
have, or something), but mostly I want to get this into the hands of s
On 9/22/2016 1:17 AM, Mattis Lind wrote:
I cannot find anything mentioned about character blanking in the circuit
description.
I read this on the topic "Alphanumeric Display":
"Refer to the display control block diagram (Fig 6-13). The display
coordinate position is generated through the digita
2016-09-21 22:27 GMT+02:00 Pete Lancashire >:
> They look pretty bright to me for a DVST screen. Your problem looks
> 'analog', check the character blanking is working, then check the digital
> to analog, deflection etc.
>
I cannot find anything mentioned about character blanking in the circuit
d
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