dth for PDP-8A... The
> last of the omnibus 8s.
> That machine had extended the MMU used in earlier PDP-8 from 3 EMA lines
> to 5.
> Only fits the 8A chassis.
>
> Allison
>
--
Doug Ingraham
PDP-8 SN 1175
Assorted 8/a chassis
DECSet 8000 (It is a blue PDP 8/e okay?)
On Wed, Mar 21, 2018 at 8:04 PM, Charles Dickman wrote:
> On Tue, Mar 20, 2018 at 11:27 AM, Doug Ingraham via cctalk
> > I guess you can be the first! Best wishes.
>
> Not sure I want to go there...
>
I hear you there. I built a front panel for a box I have been calling t
still real panels and machines readily available.
I guess you can be the first! Best wishes.
--
Doug Ingraham
PDP-8 SN 1175
lamps or period correct red LEDs.
Best Wishes!
--
Doug Ingraham
PDP-8 SN 1175
particular
diagnostic was never run from an original DEC generated tape or the Toad-1
would have failed
the diagnostic. Alternatively assembling the diag on the restoration
project would have yielded
a working multiply.
So is someone going to fix the multiply instruction in the 20+ year old
Toad?
--
Doug Ingraham
PDP-8 SN 1175
think you are done
when the OS boots or an interpreter appears to run or it passes
diagnostics. In reality you have barely begun.
--
Doug Ingraham
PDP-8 SN 1175
h branded but around 30 of them are DEC branded in the blue
plastic boxes. I have never seen one with mylar on both sides. This may
have been something that existed early on but certainly wasn't the norm.
--
Doug Ingraham
PDP-8 SN 1175
. It
was part of a ClassIC which is an 8/a with RX-01 and VT terminal of some
type in a desk with a chair. This one had the daisy wheel printer and a
DECwriter. I have not looked closely at the printer mechanism. The
DECwriter is in pretty bad shape but I have the 8/a and RX-01 running
(mostly). The original desk and chair are going to be refurbished next.
What is the purpose of the query?
--
Doug Ingraham
PDP-8 SN 1175
;
> Thanks Vince, I’ve not spoken to Aaron for years, so good to know he’s
> still around.
>
> Zane
>
>
>
--
Doug Ingraham
PDP-8 SN 1175
On Fri, Aug 11, 2017 at 5:14 PM, Chuck Guzis via cctalk <
cctalk@classiccmp.org> wrote:
>
> Was Warren Stearns connected with Stearns Computer Systems, maker of the
> short-lived Stearns PC?
>
> --Chuck
>
No, he wasn't.
--
Doug Ingraham
PDP-8 SN 1175
have his tester and his 8/a and 8/i projects. His laptop is
with one of his brothers but I will get a copy of all his engineering and
data files.
--
Doug Ingraham
PDP-8 SN 1175
n't necessary for the run lamp.
The reason to make it glow
dimly when off is to reduce the filament thermal shock when turning on and
off. This makes the bulbs
last a lot longer. The run lamp does not flicker in operation so not
necessary on that one.
--
Doug Ingraham
PDP-8 SN 1175
you are
trying to do a
museum quality restoration.
Look into restoration videos on youtube for detailed techniques.
--
Doug Ingraham
PDP-8 SN 1175
minor functionary was allowed to make the
recommendation to destroy this.
--
Doug Ingraham
PDP-8 SN 1175
line is
started it goes at full speed
until the buffer is empty at which point it goes into the stutter mode.
This eliminated the need to send
nulls after a carriage return that was necessary on the earlier purely
mechanical printers.
--
Doug Ingraham
PDP-8 SN 1175
r $4 to the average power bill in the
US.
For even less power would be to use an Arduino (probably a Due) because
then you are
talking less than 4 watts. This would be about 35 cents per month.
I wouldn't want to run my Straight 8 24x7.and pay the power bill.
--
Doug Ingraham
PDP-8 SN 1175
and had it turn out ok.
Align the negatives on the sensitized board stock.
Expose.
Develop.
Etch.
Drill
Solder in your feed throughs.
Put the parts on the board.
Debug
If on the other hand you want to make even 5 boards you would be better off
with your approach.
Best wishes!
--
Doug Ingraham
for the A? Did they make a Hex board version of it for
the A? Was the E a two board set?
Hope you find the documentation.
--
Doug Ingraham
PDP-8 SN 1175
some cases, there just aren't close matches with modern TrueType font
> > files. I can, of course, just take photos of the label areas now,
> > restore the damage, and put on stickers some time in the future, but
> > doing it all at once has its own appeal
> >
> > -ethan
>
>
--
Doug Ingraham
PDP-8 SN 1175
I noticed that the local stores don't tend to stock the white on clear
tape. I had to order the cartridge I have.
On Thu, Sep 29, 2016 at 8:18 AM, Doug Ingraham
wrote:
> White on clear is available with the Brother P-Touch label system. Just
> do a google search for white on
And the third drive would be rewinding and then unmounted and
changed while the others were actively in service.
The Pertec drive was not a data break device and had to be actively managed
so would not have been able to keep up
with the data stream.
--
Doug Ingraham
PDP-8 SN 1175
ever mess with the Link either. I found reading this code to be
tedious and I want to rewrite the diagnostic in a
more sensible manner. This guy had some other really strange coding
practices.
> --
>
> klemens krause
> Stuttgarter KompetenzZentrum fyr Minimal- & Retrocomputin
hout
success. I am going to have Warren look at it as
he has a twisted mind and sometimes sees things I miss.
--
Doug Ingraham
PDP-8 SN 1175
saveac, .-.
> 20 00417 savel, .-.
> 21 00420 7700 c7700, 7700
> 22$
>
> There is a fair chance that each of saveac, savel, and c7700 can be reused
> elsewhere.
>
> Some assemblers flag the "(" construct when used on page 0, BTW. It's
> more correct
> to use "[" there (or to avoid both).
>
> I'm a "family of 8" guy, so I avoid using BSW to begin with.
>
>Vince
>
--
Doug Ingraham
PDP-8 SN 1175
On Fri, Sep 9, 2016 at 12:39 PM, Peter Cetinski wrote:
>
> > On Sep 9, 2016, at 10:55 AM, Doug Ingraham
> wrote:
> >
> > Transparent aluminum exists. It is called sapphire. Sapphire is the
> > crystalline form of aluminum oxide. If you recall, Apple was thinking
initial cost is you can't take road
trips in them (except for Tesla). Otherwise they make ideal commuter cars
assuming you have a place to charge at home or at work. Cost to operate is
currently 1/5 that of gasoline and when gas goes back up to its record
levels it will be 1/8th the cost.
--
Doug Ingraham
PDP-8 SN 1175
using it for the touch screen face of the iphone.
--
Doug Ingraham
PDP-8 SN 1175
goes wrong you are in worse
shape than now and you really only get once shot at it. And the assumption
is that the broken ends are in close proximity.
Here is wishing you a steady hand and lots of luck!
--
Doug Ingraham
PDP-8 SN 1175
bler source code format. I have
> found lots of binary files but I would prefer assembler source code format.
> I am using a pal compatible cross assembler.
>
> Thanks and Regards,
> Scott
>
--
Doug Ingraham
PDP-8 SN 1175
I've been looking for a KK8E for some time now. It's the set of two
> boards: M8340/M8341. If you have one to sell me please contact me off
> list.
>
> I'm also interested in hints that can lead me to one.
>
> I'll give them a good home.
>
> /Anders
>
>
--
Doug Ingraham
PDP-8 SN 1175
experimented with it. I doubt that
it will work but I would love to hear differently. So give it a shot on
some broken nylon bits.
--
Doug Ingraham
PDP-8 SN 1175
that a few weeks after they they aren't trying to
> return to their shrunken, pre-boiled state?
>
Its not that they remember their size, it is just that they will get back
to the original tolerances. I imagine if you live someplace where the
humidity is 90+% all the time you won'
ossible to repair broken nylon parts in a usable manner. Nylon
while cheap and easy to injection mold was probably not the best choice for
card guides. But then who would ever have expected these machines to still
be coveted 40 years after manufacture.
--
Doug Ingraham
PDP-8 SN 1175
I think I have a box of unused Sanyo 500-AR cells. If you need some I
could do a quick test and see if any are still good enough to use. The
500-AR are about 1/2 A size. I am sure you can find the dimensions online.
--
Doug Ingraham
PDP-8 SN 1175
et a backend
for it and if still around Minix 3 will get ported.
--
Doug Ingraham
PDP-8 SN 1175
those things
that was lost forever. And even if I had it I don't have the storage scope
so it is not usable.
I recently bought a period correct scope for the 8 and one of these days I
will get around to fixing it and hooking it up. Not a storage tube but the
correct device for playing spacewars.
--
Doug Ingraham
PDP-8 SN 1175
s the
terminal because it has a current loop interface and could operate at 110
baud.
A glass terminal is not the same experience as a teletype.
--
Doug Ingraham
PDP-8 SN 1175
like they should still be holding up nicely.
>
> Anyone care to share their experiences?
>
--
Doug Ingraham
PDP-8 SN 1175
the curling paint edges to prevent further damage?
> perhaps clear nail polish?
>
> thanks,
>
> - Ian
>
> --
>Ian Finder
> (206) 395-MIPS
>ian.fin...@gmail.com
>
--
Doug Ingraham
PDP-8 SN 1175
little oversize in fact. I don't have large hands and
it would still be better for me if the spacing was slightly wider.
--
Doug Ingraham
PDP-8 SN 1175
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