On Fri, Dec 30, 2016 at 7:53 PM, Josh Dersch wrote:
> Just to bring some closure to this old thread, I finally picked up a
> working TMS9980 cpu chip (after getting one faulty one off of eBay -- it
> was even more dead than the one it was replacing). And it appears to work
> properly in the 990/
On 30/12/2016 22:31, Robert Adamson wrote:
Date: Fri, 30 Dec 2016 14:10:05 +0100
From: Pontus Pihlgren
(re
http://www.kcg.ac.jp/museum/computer/images/mini_computers/dec/vax11_780.jpg
)
Yes, but it is the taller racks. I had only seen the metal header on
the PDP-12 and our 8/I with earlier
Thats great - that helps no end.
Regards
Rod
On 31/12/2016 07:56, Pontus Pihlgren wrote:
On Fri, Dec 30, 2016 at 11:04:26AM +0100, Pontus Pihlgren wrote:
I'll provide examples of some of these. Others can be found online.
Here are three panels I could easily get to:
http://www.update.uu.s
I am probably going to be flamed for this
My VAX11/730 has an R80 disk drive as you might expect. I dismantled this many
years ago to move it and never reassembled it. Over the years (in
particular during
a house move), the smaller parts (screws, the brackets and clevis pins for the
gas struts
> On Dec 30, 2016, at 6:22 PM, Antonio Carlini wrote:
>
> On 30/12/16 17:49, Paul Koning wrote:
>> The Dutch computer ARMAC had a nice optimization, a track buffer. Under
>> software control a given track would be copied to that buffer (in some sort
>> of RAM -- core?) and then references to t
>
> On 31 December 2016 at 17:26 Tony Duell wrote:
>
>
> I am probably going to be flamed for this
>
> My VAX11/730 has an R80 disk drive as you might expect. I dismantled this
> many
> years ago to move it and never reassembled it. Over the years (in
> particular duri
How was the R80 HDA put together at the factory? From reading the printsets,
(R80, RA80, RA81, RA82 -- they all have similar HDA designs), I believe that
the spindle and platters were assembled in the lower half of the 'clamshell'
housing, then the upper part put on and bolted down. Then the positi
2016 is on the way out. For classic computer users let's hope 2017
allows our 'hobby' to continue to flourish.
Happy computing for 2017!
Murray :)
You're invariably gonna take up more space with all the removed parts after
you strip it than just keeping the whole unit around to cannibalize as
needed.
So I have to ask... WHY?!
On Sat, Dec 31, 2016 at 9:26 AM, Tony Duell wrote:
> I am probably going to be flamed for this
>
> My VAX11/730
On Sat, Dec 31, 2016 at 6:45 PM, Ian Finder wrote:
> You're invariably gonna take up more space with all the removed parts after
> you strip it than just keeping the whole unit around to cannibalize as
> needed.
> So I have to ask... WHY?!
>
Well, considering the main bits I need are assorted scr
On Fri, Dec 30, 2016 at 6:53 PM, Josh Dersch wrote:
> Just to bring some closure to this old thread, I finally picked up a
> working TMS9980 cpu chip (after getting one faulty one off of eBay -- it
> was even more dead than the one it was replacing). And it appears to work
> properly in the 990/1
On Fri, Dec 30, 2016 at 11:08:43PM -0500, Charles Dickman wrote:
>
> I am curious if the EAE is used with F4. The Language Manual says it
> is, but it is only mentioned in one place. There is nothing else to
> select using it or not using it. I looked at the sources for various
> parts of F4 and c
On 12/31/2016 1:52 PM, Tony Duell wrote:
On Sat, Dec 31, 2016 at 6:45 PM, Ian Finder wrote:
You're invariably gonna take up more space with all the removed parts after
you strip it than just keeping the whole unit around to cannibalize as
needed.
So I have to ask... WHY?!
Well, considering th
> From: Tony Duell
> My first thought is to strip this RA80 (that's why I got it!). This
> will provide me with most of the missing parts
> ...
> Is there any reason to keep the bare, stripped, chassis, or should I
> let it go as scrap metal?
> ...
> Or should I pre
Hi folks:
I've been thinking about trying some PDP-11 interfacing/emulation projects in
the new year. I'd like to track down a an M105 address selector and an M7821
(or M7820) interrupt control to keep things simple to start with. Anybody have
surplus of these they'd be willing to sell/trade?
> From: Fritz Mueller
> I'd like to track down a an M105 address selector and an M7821 (or
> M7820) interrupt control
These are pretty easy to find on eBait.
Noel
> On Dec 31, 2016, at 4:09 PM, Noel Chiappa wrote:
>
> These are pretty easy to find on eBait.
Ah, for some reason when I searched earlier I came up empty? But indeed there
was an M105 up there for < $20 with shipping, so I snagged that! I’ll keep an
eye out for the interrupt control module
> From: Fritz Mueller
> I'll keep an eye out for the interrupt control module.
For your purposes, you could probably get by with an M782 or M7820 (earlier
versions of the M7821); I'm pretty sure they are pin-compatible (the earlier
ones have circuits that aren't quite as good as the one i
I went out to Santa Cruz to watch the last sun set of the year.
There was a green>blue flash to make it more memorable.
Dwight
From: cctalk on behalf of Murray McCullough
Sent: Saturday, December 31, 2016 10:17:47 AM
To: cctalk@classiccmp.org
Subject: Year 20
The pursuit, in and of itself, will always remain. What we see, and will
continue to see, is a series of changes in focus and interest.
Most of my classic-compy interest in in the 8-bit home computers, and the
CBM machines (C64) in specific. And for now, I can't say that I see any
diminished inter
On Sat, Dec 31, 2016 at 10:28 PM, Noel Chiappa wrote:
> > From: Tony Duell
>
> > My first thought is to strip this RA80 (that's why I got it!). This
> > will provide me with most of the missing parts
> > ...
> > Is there any reason to keep the bare, stripped, chassis, or should
Murray McCullough wrote:
> Happy computing for 2017!
We have at least two 50-year anniversaries coming up: the first PDP-10
was turned on in March 1967, and the Incompatible Timesharing System
went into operation in July (on a PDP-6).
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