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Original message
From: "Ian S. King"
Date: 2016-11-29 7:19 PM (GMT-08:00)
To: "General Discussion: On-Topic and Off-Topic Posts"
Subject: Re: Thinking about acquiring PDP stuff
On Tue, Nov 29, 2016 at 5:17 PM, Brad H wrote:
>
>
> T
On Wed, Nov 30, 2016 at 12:03:22AM -0800, Brad H wrote:
>
> I'm curious.. what do people do with these things? I've seen videos
> of some in large racks being used to play music, etc. The rack ones
> seem like a a pretty substantial investment in space for something
> that doesnt (or does it?)
On 11/29/16 1:24 PM, Charles Dickman wrote:
On Tue, Nov 29, 2016 at 12:54 PM, Toby Thain wrote:
On 2016-11-29 12:22 PM, Noel Chiappa wrote:
> From: Peter Coghlan
> Can anyone suggest an existing, simple QBUS device that I could
study
> the documentation of to figure out what a
-Original Message-
From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Pontus
Pihlgren
Sent: Wednesday, November 30, 2016 12:10 AM
To: General Discussion: On-Topic and Off-Topic Posts
Subject: Re: Thinking about acquiring PDP stuff
On Wed, Nov 30, 2016 at 12:03:22AM -0800,
I'm curious.. what do people do with these things? I've seen videos
of some in large racks being used to play music, etc. The rack ones
seem like a a pretty substantial investment in space for something
that doesnt (or does it?) have much practical use today.
Are you sure you are on the right m
> From: Brad H
> So I wondered what PDP guys did to keep interested and how much they
> actually used the machine over the course of, say, a year.
Well, I have to get all mine running first... ;-) Seriously, though, I'm
looking at several years of work to get them all running. (And th
-Original Message-
From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Noel
Chiappa
Sent: Wednesday, November 30, 2016 9:08 AM
To: cctalk@classiccmp.org
Cc: j...@mercury.lcs.mit.edu
Subject: Re: Thinking about acquiring PDP stuff
> From: Brad H
> So I wondered what
On 11/30/16 9:15 AM, Brad H wrote:
>
>
> When I got
> a dead Digital Group Z80 system, repairing that and getting it operating was
> like going on an exploration of ancient ruins.
Were you born in the 20th century?
Seriously, for some of us, DG microcomputers are modern.
On 11/30/16 9:07 AM, Noel Chiappa wrote:
> Seriously, though, like all hobbies, it's primarily to amuse me, not to
> create anything useful.
And, like an old car, it's nice to have something around you can understand
down to the gate or transistor level. You haven't been able to do that with
a
On 11/30/16 11:48 AM, Brad H wrote:
I'm curious.. what do people do with these things? I've seen videos
of some in large racks being used to play music, etc. The rack ones
seem like a a pretty substantial investment in space for something
that doesnt (or does it?) have much practical use toda
I was born in '75 and my first experiences with computing were my Dad's
early Commodore stuff. I missed the whole hobbyist era. To me, DG stuff is
seriously antique. When I got my Mark-8 boards they felt a little like Inca
treasure to me. It's all relative.
It's not that I'm unaware of pre-75
On Wed, Nov 30, 2016 at 08:48:07AM -0800, Brad H wrote:
>
> Haha. I don't know if I'd call using all that iron to run Christmas lights
> 'practical', though it is very cool. I'm just trying to get out of the home
> computer collector mindset. We buy machines that can do all sorts of
> things, e
Howzbout:
line the frame of the doorway and the raingutters with rows of lights,
with some of them grouped into rows of 8, 12, 16, 18, 24, 32, 48, 64, etc.
Put touch sensitive nailheads at various places, including alongside some
of the rows of lights.
Wire the touch sensitive nailheads to re
On 11/30/16 9:45 AM, Pontus Pihlgren wrote:
> For me it is really about the learning experience. And boy is there much to
> learn. It's very interesting to see what is different and was is similar
> between various operating systems and architectures (and decades).
>
> Learning the history ma
Argument goes both ways. Does anyone really do practical things with any home
computer?
On the vcf forums I enjoyed two folks who eventually got their two PDP models
running chess and had them play eachother. I'd like to see a rematch or maybe
some new vintage competitors approach :-)
If they
On 11/30/2016 9:20 AM, Al Kossow wrote:
On 11/30/16 9:15 AM, Brad H wrote:
When I got
a dead Digital Group Z80 system, repairing that and getting it operating was
like going on an exploration of ancient ruins.
Were you born in the 20th century?
Seriously, for some of us, DG microcomputers
Hi,
I just acquired a Philips P2000C and I'm looking for a copy of the p-systems
disc(s) to run UCSD Pascal on it.
If someone has a copy of those I would be very happy ;)
-Rik
pic?
On Wed, Nov 30, 2016 at 3:49 PM, Rik Bos wrote:
> Hi,
>
>
>
> I just acquired a Philips P2000C and I'm looking for a copy of the
> p-systems
> disc(s) to run UCSD Pascal on it.
>
> If someone has a copy of those I would be very happy ;)
>
>
>
> -Rik
>
>
>
>
>
>
> Argument goes both ways. Does anyone really do practical things with any ho$
Depends on how you define "practical" and "home computer".
My home network includes a SPARCstation-20, which is my main head (I'm
typing this message using it to handle keyboard and screen). I don't
think there's any
You were correct, I was looking for the -12v in the wrong place. I did find
-12v on the anode of CR2. So all voltages are correct at the test points.
So the LCD shows nothing and the device does not seem to respond to keypad
presses.
The other symptom is that I can hear some feeble and irregular
If you have an oscilloscope or logic analyser see if you have a clock signal at
the main CPU. If you do, see if your EPROMs are being accessed. If not you may
have a clock issue, a bad CPU or the CPU reset stuck low.
David Collins
(Sent from out of office)
> On 1 Dec. 2016, at 12:48 pm, Mich
Hi folks,
What are people doing for keys for the 8e? Is there a standard key used for all
of them? Or do I need to have one made with some specific serial number of my
key lock? I did some googling of this issue but wasn't able to get info.
Thanks
Eugene W2HX
On Wed, Nov 30, 2016 at 11:35 PM, W2HX wrote:
> Hi folks,
>
> What are people doing for keys for the 8e?
I've been carrying a standard DEC key on my keyring since 1982...
> Is there a standard key used for all of them?
Nearly all (a custom key was an option - I have only ever seen *1* DEC
machi
On 11/30/2016 8:35 PM, W2HX wrote:
Hi folks,
What are people doing for keys for the 8e? Is there a standard key used for all
of them? Or do I need to have one made with some specific serial number of my
key lock? I did some googling of this issue but wasn't able to get info.
Thanks
Eugene
- Original Message -
From: "jim stephens"
To: "General Discussion: On-Topic and Off-Topic Posts"
Sent: Thursday, December 01, 2016 12:17 AM
Subject: Re: PDP-8e power switch key?
>
>
> On 11/30/2016 8:35 PM, W2HX wrote:
>> Hi folks,
>>
>> What are people doing for keys for the 8e? Is
On 11/30/16 11:48 AM, Brad H wrote:
Haha. I don't know if I'd call using all that iron to run Christmas lights
'practical', though it is very cool. I'm just trying to get out of the home
computer collector mindset. We buy machines that can do all sorts of
things, especially games with graphic
On 11/30/16 2:32 PM, jim stephens wrote:
On 11/30/2016 9:20 AM, Al Kossow wrote:
On 11/30/16 9:15 AM, Brad H wrote:
When I got
a dead Digital Group Z80 system, repairing that and getting it
operating was
like going on an exploration of ancient ruins.
Were you born in the 20th century?
S
From: Brad H
Sent: Wednesday, November 30, 2016 9:16 AM
> That was kind of why I thought buying a PDP in pieces over time might be my
> way to go, even if it took eons to get everything I needed to rebuild one.
> It'd be fun to try and piece one back together. But yeah, I'm trying to
> think of w
-Original Message-
From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Rich
Alderson
Sent: Wednesday, November 30, 2016 12:16 PM
To: 'General Discussion: On-Topic and Off-Topic Posts'
Subject: RE: Thinking about acquiring PDP stuff
From: Brad H
Sent: Wednesday, November 30,
Does anyone have a manual for the Microtec META29M meta-assembler? This
was generally used to assemble microcode for microprogrammed systems,
including bit-slice systems. It was apparently compatible with AMD's
AMDASM, but added additional features.
On 11/30/2016 11:36 AM, allison wrote:
On 11/30/16 2:32 PM, jim stephens wrote:
On 11/30/2016 9:20 AM, Al Kossow wrote:
On 11/30/16 9:15 AM, Brad H wrote:
When I got
a dead Digital Group Z80 system, repairing that and getting it
operating was
like going on an exploration of ancient rui
If I power it up with the cover off, i can hear that several of the motors
are making unhealthy noises and not moving (although the pen carousel moves
very slightly before giving up and just howling). The paper drive motor and
also the little motor for the paper feed/takeup spindle are making the
w
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