See previous discussions of this on the list.
It is on the order of 10000 DPI. I have two fiche scanners, A 3M
unit that I actually have software for, but requires manual positioning
and a much older automatic unit with no docs or software.
The effective resolution of the output is normally between 200 and 400
DPI after magnification between 20 and 30x.
This res. gets hot even when switched off, but just in the socket. I'm
going to take pictures of the unit on wednesday, but a picture of the
teletype with the cover on can be found at
tore.nortia.no/bilder/s201002.jpg .
ASCII drawings:
(out of scale)
________________________
| | | | Blue slot with card that gets hot
| |-- |/
| | ||
|_________________| ||
| | |
|_________________|____|
____________
| |
| (14 O ) | <- large resistor
| |
| (220ko)| <\
| (300ko)| |
| | |- not sure
| etc (vr) | |
| | </
| _ |
|||||| ||||||
The resistor gets extremely hot when the 33 is plugged in.
"Athlon without its fan"-style hot.
-Tore
"Insert quote with wierd Tore-humour here"
>From: ard(a)p850ug1.demon.co.uk
>
>> Whenever I type anything I just get a left-arrow. I am blaming the
>> 1818-23/-21 for this. Shouldn't I?
>
>Maybe. Does the Model 33 work correctly when switched to 'local'? If not,
>then you certainly have problems in the Teletype. If it does work in
>'local' mode, then you might still have problems in the Teletype, but
>problems with the interface are also possible.
Hi
It is also possible that he has the wrong speed gears/motor.
A 60Hz motor will run in local with 50Hz connected but the
Baud rate to the outside will be wrong.
Dwight
>
>>
>> OK; current loop.
>>
>> Would this explain a resistor (14 Ohm, big) in the slot of the KSR would
>
>Are you sure it's 14 ohms? I remember a multi-tapped power resistor with one
>tap being about 1400 ohms in the standard current loop electronics for
>the Model 33.
>
>> get extremely hot when off this loop? Also; Hans Pufal, I would be most
>
>And I think it does run hot. When switched to local, the teletype is
>_still_ a current loop device, but the transmitter (keyboard contacts),
>receiver (the selector magnet driver -- the little module with 2
>transsitors in the Teletype electronics chassis) and a 'local' power
>supply (which includes that resistor) are all in series. A current loop,
>but one entirely inside the Teletype Model 33.
>
>-tony
Hi
I believe this is normal. According to the schematic
I have, only the motor is switched. The transformer
that supplies the current loop is still active. You
must pull the plug when working on these.
Dwight
>From: "Tore Sinding Bekkedal" <toresbe(a)ifi.uio.no>
>
>This res. gets hot even when switched off, but just in the socket. I'm
>going to take pictures of the unit on wednesday, but a picture of the
>teletype with the cover on can be found at
>tore.nortia.no/bilder/s201002.jpg .
>
> ASCII drawings:
> (out of scale)
> ________________________
> | | | | Blue slot with card that gets hot
> | |-- |/
> | | ||
> |_________________| ||
> | | |
> |_________________|____|
>
> ____________
> | |
> | (14 O ) | <- large resistor
> | |
> | (220ko)| <\
> | (300ko)| |
> | | |- not sure
> | etc (vr) | |
> | | </
> | _ |
> |||||| ||||||
>
> The resistor gets extremely hot when the 33 is plugged in.
> "Athlon without its fan"-style hot.
>
>
>-Tore
>
>"Insert quote with wierd Tore-humour here"
Hi
I think the rule is 0.5ma per cubic inch of computer
grade capacitor and 0.25 ma per cubic inch of normal
capacitor. As an example: 2" dia X 3 inch = 9.4 in^3
Cap voltage rating of 10V
use 2.2K limiting resistor and
10V supply.
Of course, if the capacitor is on a 5V rail, you'll
need to disconnect one end.
Dwight
>From: "Luc Vande Velde" <luc(a)e2t.be>
>
>For years I use a high-voltage DC power supply with current limiting for
>this. Works very fine...
>Only a few, weird designs, need the AC voltage to start.
>This is also a very safe way to repair the things (safe for the unit and the
>technician)
>
>gr.
>
>Luc
>
>
>-----Original Message-----
>From: cctech-admin(a)classiccmp.org [mailto:cctech-admin@classiccmp.org]On
>Behalf Of Robert Maxwell
>Sent: Tuesday, June 03, 2003 5:21 PM
>To: 'cctech(a)classiccmp.org'
>Subject: RE: reforming PS caps w/primary-side components
>
>
>-----Original Message-----
>>Anybody want to offer advice on reforming filter
>>caps? I'm planning to power up some stuff that
>>hasn't seen voltage in a long time. My plan is
>>to put several low-wattage light-bulbs in series
>>with the thing, to limit the amount of current it
>>will get, and hopefully allow those old caps
>>to reform instead of, say, exploding in my face.
>>...
>>Now the questions:
>>
>>Could putting the light-bulbs (or whatever) in
>>series on the primary side of the transformer
>>actually produce the desired effect? IIRC, a
>>step-down transformer divides the voltage but
>>multiplies the current. So I'd have to limit the
>>current on the primary side that much more to
>>keep the secondary current down, right?>
>>
>>Also, what kinds of things could be damaged by
>>getting less voltage than they were designed for?
>>I could imagine hard disks spinning too little to
>>lift the heads from the surface, for instance.
>>(This is moot, because there are no hard disks
>>in any of the equipment I'm looking at.) How
>>about CRT's? Could too little deflection make
>>the beam hit something it shouldn't? Anything
>>else?
>>
>> Thanks,
>> Bill.
>
>Bill,
> (1) Don't use a light bulb - they have a very low resistance when cold,
>and will cause the inrush you're trying to avoid. The best recommendation
>I've seen is to use a "variac"-type variable transformer to reduce the
>powerline going in. Start at minimum, and turn things up slowwwwly, watching
>current draw. Beware gotchas like LSTTL drawing heavy current at around 2.1
>volts supply. Actually, with a meter across the capacitor supply, stop at
>about one volt, so any semiconductors in line can't get terribly excited: if
>there's no apparent short as things stabilize, turn the voltage up.
> (2) CRTs aren't a hazard from undervoltage (I ran a sick Zenith TV on
>85VAC for years using a Variac). It's overvoltage that causes X-Ray risks.
>Just to be safe, disconnect anything mechanical, to avoid problems like the
>hard-drive one you mentioned - some types of motor overheat if undervolt-ed.
>
>Bob "HW-Hacker" Maxwell
>How many people do you know that sawed their computer in two?
Hi Joe,
>I'd like get a copy if you have it. I'm running into a couple of
>oddities when I try to operate it. It's working but not the way that I
>expected and I don't know if I'm doing something wrong or what.
I remember being slightly confused by the operation of the bus analyser too.
It didn't really seem to make sense to me for some operations - I was never
sure if it was broken or that was just the way it worked.
I think that these things tend to be a little flaky / sensitive - I ended up
constructing a single analyser that sort of worked from three analysers that
didn't.
>Steve Robertson ran into the same problem when he tried to use it to
>study the disk operation as part of writing an OS for the HP 1000. He did
>get some usefull info but only 32 bytes of it!
That's right, the internal memory buffer in the bus analyser is only 32
bytes.
You can either set it up to store 32 bytes from the bus or (I think), if you
have the patience, you can manually (in binary) store 32 bytes in the memory
and then have the analyser clock them out onto the bus.
>I'm currently investigating another option.
>NI make a GPIB+ card (ISA or PCI) that acts as both a GPIB controller and a
>...
>codes. I'll let you know how I get on.
I've now had a chance to take a look at the NI GPIB+ cards in some detail.
With the proviso that these cards only work under Windows 98 se or earlier
and windows NT, they seem to be an excellent solution to seeing what is
going on on an HPIB bus.
The software can be set up to monitor all events on the HPIB bus, control
lines, data lines, control words, data words etc. The card can also be set
up to passively monitor the bus and add time stamps to the captured bus
events.
The only limitation to the number of events that can be stored in a capture
file appears to be how much memory/disk space the capture machine has.
The capture files can be exported in a text format and dumped into Word /
Excel for further processing.
>I have (had?) a card like that but NI no longer supports it and I
>haven't been able to find any docs or software for it.
If the card is a GPIB+ Controller/Analyser then the software is available
for NT / Win98 - you need version 1.7 of the GPIB controller software from
the NI website.
>I have something else that might be usefull. It's Bus Analyzer module
>made by HP that works with one of their logic analyzers. You plug the LA
>pods directly into it (no wire leads) and it has sockets for RS-232, HP-IB
>and one or two other standard interfaces. With it you can use a LA to grab
>the data, disaasemble it (if you have the the disassembler), save it, send
>it to a computer, etc. I've never tried to use it since I don't have the LA
>(HP 1631 IIRC) that it works with.
For me, after looking at the GPIB+ card it seems to be a 100% solution - I
am very impressed with it - only the slightly ageing software lets it down.
Peter
_________________________________________________________________
It's fast, it's easy and it's free. Get MSN Messenger today!
http://www.msn.co.uk/messenger
For years I use a high-voltage DC power supply with current limiting for
this. Works very fine...
Only a few, weird designs, need the AC voltage to start.
This is also a very safe way to repair the things (safe for the unit and the
technician)
gr.
Luc
-----Original Message-----
From: cctech-admin(a)classiccmp.org [mailto:cctech-admin@classiccmp.org]On
Behalf Of Robert Maxwell
Sent: Tuesday, June 03, 2003 5:21 PM
To: 'cctech(a)classiccmp.org'
Subject: RE: reforming PS caps w/primary-side components
-----Original Message-----
>Anybody want to offer advice on reforming filter
>caps? I'm planning to power up some stuff that
>hasn't seen voltage in a long time. My plan is
>to put several low-wattage light-bulbs in series
>with the thing, to limit the amount of current it
>will get, and hopefully allow those old caps
>to reform instead of, say, exploding in my face.
>...
>Now the questions:
>
>Could putting the light-bulbs (or whatever) in
>series on the primary side of the transformer
>actually produce the desired effect? IIRC, a
>step-down transformer divides the voltage but
>multiplies the current. So I'd have to limit the
>current on the primary side that much more to
>keep the secondary current down, right?>
>
>Also, what kinds of things could be damaged by
>getting less voltage than they were designed for?
>I could imagine hard disks spinning too little to
>lift the heads from the surface, for instance.
>(This is moot, because there are no hard disks
>in any of the equipment I'm looking at.) How
>about CRT's? Could too little deflection make
>the beam hit something it shouldn't? Anything
>else?
>
> Thanks,
> Bill.
Bill,
(1) Don't use a light bulb - they have a very low resistance when cold,
and will cause the inrush you're trying to avoid. The best recommendation
I've seen is to use a "variac"-type variable transformer to reduce the
powerline going in. Start at minimum, and turn things up slowwwwly, watching
current draw. Beware gotchas like LSTTL drawing heavy current at around 2.1
volts supply. Actually, with a meter across the capacitor supply, stop at
about one volt, so any semiconductors in line can't get terribly excited: if
there's no apparent short as things stabilize, turn the voltage up.
(2) CRTs aren't a hazard from undervoltage (I ran a sick Zenith TV on
85VAC for years using a Variac). It's overvoltage that causes X-Ray risks.
Just to be safe, disconnect anything mechanical, to avoid problems like the
hard-drive one you mentioned - some types of motor overheat if undervolt-ed.
Bob "HW-Hacker" Maxwell
How many people do you know that sawed their computer in two?
Hi, I have a DEC RL02, supposedly removed from a working system.
Anybody want it? Anybody want to offe a few $$$ for the wear and tear on my
back?
It's a heavy beast, so expect $45 or so shipping cost
in the USA.
Regards,
George
-----Original Message-----
>Anybody want to offer advice on reforming filter
>caps? I'm planning to power up some stuff that
>hasn't seen voltage in a long time. My plan is
>to put several low-wattage light-bulbs in series
>with the thing, to limit the amount of current it
>will get, and hopefully allow those old caps
>to reform instead of, say, exploding in my face.
>...
>Now the questions:
>
>Could putting the light-bulbs (or whatever) in
>series on the primary side of the transformer
>actually produce the desired effect? IIRC, a
>step-down transformer divides the voltage but
>multiplies the current. So I'd have to limit the
>current on the primary side that much more to
>keep the secondary current down, right?>
>
>Also, what kinds of things could be damaged by
>getting less voltage than they were designed for?
>I could imagine hard disks spinning too little to
>lift the heads from the surface, for instance.
>(This is moot, because there are no hard disks
>in any of the equipment I'm looking at.) How
>about CRT's? Could too little deflection make
>the beam hit something it shouldn't? Anything
>else?
>
> Thanks,
> Bill.
Bill,
(1) Don't use a light bulb - they have a very low resistance when cold,
and will cause the inrush you're trying to avoid. The best recommendation
I've seen is to use a "variac"-type variable transformer to reduce the
powerline going in. Start at minimum, and turn things up slowwwwly, watching
current draw. Beware gotchas like LSTTL drawing heavy current at around 2.1
volts supply. Actually, with a meter across the capacitor supply, stop at
about one volt, so any semiconductors in line can't get terribly excited: if
there's no apparent short as things stabilize, turn the voltage up.
(2) CRTs aren't a hazard from undervoltage (I ran a sick Zenith TV on
85VAC for years using a Variac). It's overvoltage that causes X-Ray risks.
Just to be safe, disconnect anything mechanical, to avoid problems like the
hard-drive one you mentioned - some types of motor overheat if undervolt-ed.
Bob "HW-Hacker" Maxwell
How many people do you know that sawed their computer in two?
I guess that's me!
I am quite busy. In a few months (3) I have my own
"PDP-11 garden house" (3,5 x 8 meters) just for PDP-11's.
Then www.pdp-11.nl will see some new info.
On http://home.hetnet.nl/~tshaj is a link to www.pdp-11.nl
and to my StarShip project. Again, in a few months time,
I will start new developments ... indeed time is a problem.
The 'StarShip Simulation' of Dilithium Press is the Bible,
but, as it should, use it for inspiration and do not follow
it like a fanatic :-)
- Henk.
BTW. Megan, I have sent you the 68020 assembler source code
of the kernel which supports task start/stop/suspend/resume
and time-wait and semaphore-pend calls. Ever ported it to
PDP-11?
> -----Original Message-----
> From: Megan [mailto:mbg@TheWorld.com]
> Sent: dinsdag 3 juni 2003 15:46
> To: cctalk(a)classiccmp.org
> Subject: Re: Display of first networked personal computer
> game returning
>
>
> I have a copy of the 'StarShip Simulation' and have also often
> thought about rendering some code...
>
> alas, not enough time...
>
> I do know that there is someone on the net who has been trying
> to actually build the hardware for a starship simulator and has
> been basing his code on the 68000... I'm not sure where his page
> is or if he reads CCMP.
>
> Megan
I have a copy of the 'StarShip Simulation' and have also often thought
about rendering some code...
alas, not enough time...
I do know that there is someone on the net who has been trying
to actually build the hardware for a starship simulator and has
been basing his code on the 68000... I'm not sure where his page
is or if he reads CCMP.
Megan
Jerome Fine wrote:
.
> Is there an actual Qbus - or something else? It certainly
> sounds like a Qbus!
The PDT has no Qbus. I believe the eBay auction has a picture
with the top cover off and the top board elevated - you can
make out a ribbon cable coming off the bottom board, and the
paper insulating sheet that sits between the bottom two boards
when closed.
> Also, I presume there is no possibility of a hard drive?
> How many DL ports are available?
The PDT-11/150 was reportedly available with one or two RX01
drives, and three serial ports with another three optional. I've
only seen the one I own, which has both drives and six ports.
There're no other expansion options that I can recall.
In fact it's sitting in the dining room with a VT100 waiting to
be powered up to check some 8" floppies I received a while back.
I'm in the process of bringing up a VAX 4000/500 I recently
received and it'd be a hoot to connect the PDT to it.
Did RT-11 ever include DECnet support? Probably so, but as of
what version? I don't recall seeing mention of it with whatever
version came with the PDT, and I'd be amazed if the PDT could
support it...
--Steve.
smj(at)spamfree.crash.com (lose spamfree to get through, m'kay?)
>I should hedge my bets here: There is no Qbus backplane in the
>PDT-11/150. There are some stacking connectors between two dual-
>height sized boards (serial ports and memory) on top and the
>middle board, which carries the CPU complex. I believe the bottom
>board in the stack is the floppy controller - not sure if the
>console circuitry (8085 based?) is on that or the middle board.
The interrupt processor on the PDT is an 8085(A)...
Megan
>The PDT-11/150 was reportedly available with one or two RX01
>drives, and three serial ports with another three optional. I've
>only seen the one I own, which has both drives and six ports.
>There're no other expansion options that I can recall.
I've never seen one with only one drive, but I have seen some
which didn't have the extra 3-line option.
>In fact it's sitting in the dining room with a VT100 waiting to
>be powered up to check some 8" floppies I received a while back.
>I'm in the process of bringing up a VAX 4000/500 I recently
>received and it'd be a hoot to connect the PDT to it.
Remember, after powering it on, you type two '@' to autobaud and
boot the unit.
>Did RT-11 ever include DECnet support? Probably so, but as of
>what version? I don't recall seeing mention of it with whatever
>version came with the PDT, and I'd be amazed if the PDT could
>support it...
RT never came with DECnet support... DECnet was, however, available
for it as a 'layered product'. The DECnet available for RT was
Phase III, asynch/sync support only. No Phase IV/Ethernet. I know
of someone who actually had a PDT running RT on the DEC internal
network at one point...
Megan
I noticed this on eBay and thought I'd post it here for those PDP-11
collectors among us:
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=2733136922&category=1247
The starting price ($199 US) seems high, but these are pretty hard to find.
One possibly sour note though - the seller wants a flat rate of $150 to ship
anywhere in North America.
I picked up one of these in terrific condition last December for $25. It cost
$65 to pack and ship the heavy thing, but it was worth it. I haven't seen
another PDT sell since then.
Stuart Johnson
Sorry, I can't help you with your identification, but must point out that it
can't be MUCH earlier than the Jupiter Ace, since both the Ace and the
MC68010 processor were released in 1983, so the computer you have can be at
most a few months earlier, and probably more recent since the Jupiter Ace
ran for a shorter time than the 68010!
Some CAD stations have multiple joysticks, also video editing consoles, or
even studio music production equipment. Could it be something like that? Is
there any clue from the location you found it (on the kerbside outside what
building???).
You may get more clues if you switch it on and see what comes up on the
monitor!
Good luck
paul
-----Original Message-----
From: peter tremewen [mailto:ptremewe@bigpond.net.au]
Sent: 01 June 2003 22:18
To: cctalk(a)classiccmp.org
Subject: Jupiter Computer (No Not the ACE)
Hi all,
I have in my hands a "Jupiter" computer and am wondering if you can
offer any info on it? It is not the Jupiter ACE home computer, but a much
earlier very large and obviously fairly old rack mounted system. The
computer
is based on the 68010 CPU. I can't determine how much memory it has on
board,
but there are more than several banks of 4164 mem chips which if I remember
is
a 64kbit dynamic Ram device. The huge keyboard is attached via a missing
multipair cable and has two joysticks on either side. The monitor has
separate
RGB and Sync cables, each of which are generated using separate discrete
component boards in the chassis. Inside the chassis are two huge Vertex hard
drives, and a 3.5 in floppy, each connected to their discrete driver boards,
Z80 based.
On the front of the computer is "Jupiter". Model number is J12CHAS
and
Man date is "514". It was manufactured in Berkeley C.A. USA. The serial
number
is "Jup.S.N. 12C-1025-AA". I basically found it all on a curbside and
couldn't
resist adding it too my rather small but now growing collection. If you need
any further info to help with identification let me know, I'll see what I
more
I can get from the chassis.
Maybe I'm insane and have just picked up what most would consider
total junk, but I personally think that systems such as this are worth
preserving. I haven't been brave enough to switch the damn thing on yet,
with
all that discrete hardware it will probably double my power bill with about
a
minutes use. However I love all this old stuff, and worse comes to worse at
least their are some interesting discrete components in it. If you need or
would like a photo let me know, I'm a freelance photographer and will take a
few shots anyway, so when I do I'll pass some scans on to you.
Peter T.
My Selectric III went in the local metal-recycle bin quite a few years ago.
It was getting sticky and needed a thorough cleaning. The local IBM service
center wanted $125 just to take a look at it, so enough was enough. I have
not used a typewriter in the last 8 or so years, and don't miss it.
I had a second Selectric my brother gave me, but during a move, one of the
cast-metal parts gave up the ghost. It seemed too expensive to get it
replaced, so it, too, went to the metal recycle bin. I suspect many other
typewriters, Selectrics et al., met the same fate.
My mother, 89, still uses a manual typewriter, but her sight is failing and
she has a hard time getting the right roy of keys. Sometimes we have to sit
at the keyboard and "decipher" her notes. She recently found a typewriter
repair shop on Long Island (NY) that would repair and clean her manual unit.
She got new type and a cleaned unit for about $85. That's a deal.
Jon
Jon Titus
36 Sunset Drive
Milford, MA 01757-1362 USA
Phone: +1-508-478-8040
E-mail: jontitus(a)attbi.com
Member, National Association of Science Writers
Whenever I type anything I just get a left-arrow. I am blaming the
1818-23/-21 for this. Shouldn't I?
OK; current loop.
Would this explain a resistor (14 Ohm, big) in the slot of the KSR would
get extremely hot when off this loop? Also; Hans Pufal, I would be most
grateful for the schematics for the CL>RS232 converter. Also tell me more
about the modifications made to the TTY control on the PDP? The card says
181823 on the solder side and 181821 on the other.
Thanks!
-Tore
"Life's a bitch and then you turn on your PDP and it's all nice and when
you turn it off it goes back to being a bitch. Repeat when nessecary. Oh,
and you die, btw."
I am having trouble on my toshiba laptop 210CT the screen goes dark when i am
working on it i then pull the screen down towards me the back up and the
screen then goes back to normal can you help thanks paul tel 020 8838 4943
How many people would publically claim to own a PERQ 3a, a PERQ T4, an
HP95C, a DAP, a 370/E (which is not an IBM machine!) or something like that?
==
What's the point of having cool stuff if you can't say you have it? :-)
I don't make a secret of the Xerox protos that I have. On the other hand
there aren't a lot of people who know where they actually ARE..
J.C. Wren wrote:
.
> What kind of machine could one possibly not admit to owning? That's
> seems pretty wierd.
I can imagine such a circumstance. Wasn't an Enigma device stolen
>from a museum or collection not too long ago? Weren't the US$10,000+
sales of some Apple I's widely publicized?
Some folks might not want to play the odds when publishing their
holdings, if they're lucky enough to have some truly rare objects.
--Steve.
smj(at)spamfree.crash.com (lose spamfree to get through, m'kay?)
Knowing Atari, there tapes were most definitely written on a PDP-11
system.
==
They are discs, not tapes.
Atari switched from development on PDP-11's (an 11/60 that actually
was at Weird Stuff when they were next door..) to a VAX in the early
80's.
They are probably the RM05 packs from KIM::
--
I don't know about you, but I would be pretty surprised if Curt is
going to find someone willing to put an unknown 12 platter pack in
their RM05. I dont think Scopus or any of the disc inspection
companies are even around any more.
I have several dozen of those same vintage packs that I'm terrified
to even try to put in a drive (not for a VAX..)
How about a Video Brain
Really form someone
other than Dwight
>To: cctalk(a)classiccmp.org
>
> > What kind of machine could one possibly not admit to owning?
>
>
>a PC ?
>
>
>
>
---snip---
This does sound good. Design the database using ISO/IEC 11179, Metadata Standard. Then the records can be exchanged & understood by many systems.
Then the records can either be entered by one/one group of people. Or people can self-register their computers, pictures, etc.
Problem with having one person do it: time and money.
Problem with self-registration : how to motivate collectors to register their stuff? Why bother?
The one Internet tool that I've seen that really has people using, strategizing, and making complete registrations on is eBay. Sellers are motivated to have their things well-placed and carefully indexed so that they can be found by prospective buyers.
Well, that's not entirely true. Computer collector websites are often very very cool; full of photos, scanned documents, lists of possessions, tips, stories, and other exotica. And to find those, I don't need a database, I need Google.
Cynde Moya, MLIS
-----Original Message-----
From: Tore Sinding Bekkedal [mailto:toresbe@ifi.uio.no]
Sent: Monday, June 02, 2003 2:20 PM
To: cctech(a)classiccmp.org
Subject: Collectors worldwide, UNITE!
Over the weekend, a thought has been taking shape inside my head:
What if we made a Grand Unified Union of Computing Collectors? Okay, GUUCC
doesn't pronounce well. "Geeewkhkh". (shudder) How about Collector's
International Association... Erm, nope. ;) International Computer Artifact
Preservation Society! ICAPS sounds good. Or, if you totally disagree with
it all, send a suggestion.
OK, www.ipacs.org. What should it contain?
-A member's directory with all the computers he/she owns
-A directory of computers
-A knowledge base revolving around all of the computers.
For example, a user should be able to:
Search for "6-611"
1 Machine found.
Siemens 6-611 (198?)
1 Owner found.
Tore S Bekkedal
One would then click the entry link, and open up a window with pictures
and specs etc, and there would be interesting links regarding that
machine, downloadable boot images, etc, etc.
If one clicked the owner, one would see other machines in his collection.
There should also be a "Market" where people could exchange spares, and
machines etc.
Also an "Opportunities" "Map" where you could see pickup opportunities?
Companies should be able to "Donate" to the organization whereupon an
entry would appear on the "map".
IPACS would also allow for sharing of storage space, people splitting the
bill for major warehouses?
Any suggestions, alterations, criticism, etc, etc, most welcome!
-Tore
"Why O why must I always write an interesting quote below my name? Can't
I write something about toenails? Or are they interesting as well?"
Hi All,
> Yes a FEW of the HP-IB hard drives. The only drives that would work
>without specail support were the HP 9133/9134 that had a apecial option
>that made the disk look like three HP 9895 8" floppy dirves. There is a...
Sounds like it is a bit of a non-starter...
> I replied to you several times but my messages don't appear to be
>getting through. I haven't had time to set up a machine with the HP-IB card
>and install your SW.
Let me know when you get things going, the software has gone through a
number of revisions since the version I sent you. I'm now looking at an
application that first strips all the data from an HPIB disk drive dumping
it onto a PC. A second application on the PC then emulates an HPIB drive
using groups of files stored in a simple directory system on the PC.
>I've been spending a lot of time with the HP 1000s and
>with a HP-IB interfaced Speech Synthesizer that I found. (It's COOL!)
Sounds like a pretty rare piece of kit - is it a commercial Speech
Synthesizer or home-brew?
>That's taken me deeper into the HP-IB bus operation and I've had to repair
>a couple of HP 59401 HP-IB Bus Analyzers for use with that. (Anybody got a
>manual for these?)
I certainly have an operations manual, it may include some service bits and
pieces. I'll take a look when I get home to the UK.
I have a couple of these bus analysers at home, I used them in the initial
investigations for the CS80 reader. You can use them to slow down the bus
traffic on an HPIB system either to 2 transactions a second or single step.
I tried using one to investigate the traffic between a 9000 300 machine and
a disk drive but as soon as you slow the bus down the 300 series machine
complains that the disk has timess out.
Luckily I have an old HP 3562 spectrum analyser than interfaces to CS80 /
AMIGO disks. You can single step though commands with no timeout problems
using it as the disk controller.
In the end though useful the 59401 is somewhat limited in what it can do.
With the long command sequences that I was examining I ended up having to
write down each octal (Yes, OCTAL - the I lost count of the number of times
that I accidentally read the numbers as hex....) data packet as it appeared
on the bus and then go back and try to decode what it all meant.
The bus analyser also occasionally dropped the first byte of information
being sent back by the HPIB disk drive.
I'm currently investigating another option.
NI make a GPIB+ card (ISA or PCI) that acts as both a GPIB controller and a
GPIB analyser. In theory this can be set up to 'sniff' the GPIB bus and
generate a log file of each GPIB bus event (with a 50 ns time resolution).
The log can be as long as you want so no more laboriously copying down octal
codes. I'll let you know how I get on.
> I'm still looking for those blankity-blank manuals! Don't know where I
>put them. I found a set of paper back manauls of the same thing.
I don't need the manuals straight away. I'm hoping they contain some info
about HP-UX file formats (and general HP-UX stuff - I have no experience
with HP-UX systems)
>Did the other manuals arrive yet?
I haven't seen them yet but it's a few days since anyone checked my mail for
me.
Cheers
Peter Brown
_________________________________________________________________
Tired of 56k? Get a FREE BT Broadband connection
http://www.msn.co.uk/specials/btbroadband
IBM made a bunch of printer terminals based around the Selectric typewriter
- 1052, 2740, 2970 etc. Look in any old copy of BYTE, and you'll also find
several vendors were selling 3rd party terminals based around IBM
Selectrics, often converted for ASCII/RS-232c operation, as teletype
alternatives.
Where have they all gone? (I appreciate, from what I've heard, that many
folks who used them in anger would reply 'I don't know, I don't care, good
riddance!') Early DECwriters are not uncommon. Teletypes are (almost) ten a
penny, ASR33s show up frequently enough on ebay, I have several.
But the only Selectric based unit I've *seen* in over ten years of
collecting is a 2970 Reservation Termainal (see
http://www.corestore.org/2970-1.jpg ) which I was offered a year or so ago.
It needs a fair bit of TLC, and it's a print-only device; it can receive
data from a host and print it, but not send anything back from the keyboard.
I'd love to get a bidirectional equivalent to use as an 'authentic' terminal
for a 360 emulator I work with... any clues? Can anyone recommend a
Selectric repair shop? No way I want to try to fettle something THIS
mechanically-intimidating myself!
Mike
http://www.corestore.org
Oh Man!!!
I thought I was the only one who remembered this book
fondly!
I used to have this book and pour through it. Wishing
I had the money to build a replica of the Enterprise
bridge and make each station a Computer like this book
outlined.
Alas, I've lost my copy of this book. I hope I can
find another some day... (Can you send me ISBN
Information?)
Thanks for the title and author, that should help a
lot...
I think something like this would make a WONDERFUL
type of attraction. Where people would pay to spend a
day in the Simulator and go "Exploring".
What's missing in a lot of the Computer Games today,
is just the fun of exploring... Not just blowing up
Borg or Klingons and the like...
Like Starflight I or II...
Even Escape Velocity on the Mac is fun, because you
don't have to go battling, you can just go around
trading and building up your ship...
Regards,
Al
From: Alan Greenstreet <aeg(a)paradise.net.nz>
>
> A slightly older networked "game" I know of was
> written by Roger Garrett and published in
> "Interface Age" magazine in the August /
> September / October 1977 issues. It was then
> followed by a comprehensive book in 1978 (which I
> have). There is a complete programme structure for
> a networked game - rather ambitiously titled
> "Star Ship Simulation" and based on the previous
> 1975 books detailing the Star Trek Enterprise
> design blueprints and Star Fleet Technical
> Manual. Each computer is one of the main bridge
> stations; Science, Engineering, Weapons, Navigation,
> Communications etc.
>
> I have read through most of the book and it is
> suggested that the programme could be written in
> Fortran, Basic or Machine Code - depending on the
> choice of the programmer. I have never seen or
> heard of this programme running. Has anyone else
> come across it?
>
> Alan
Hi,
I've just finished fixing the Ace's PCB using wire-wrap wire. All the
broken tracks I've managed to find have been fixed and all the damaged
through-hole plating has been repaired. Except there's one problem. The Ace
*still* won't boot to the FORTH interpreter.
There is a load of garbage on the display - this seems to change while the
machine is running. The power consumption of the board - CPU and all - is
around 800mA (according to the crappy meter on my Farnell 1A bench PSU). I've
got the output on the PSU set to 9V, no current limit.
Does anyone here have a logic analyser or microprocessor debugger that I
could borrow for a few days? I've got two scopes (a Tek 466 and a Gould
OS1100) and a Fluke 25 multimeter, but that's about it in terms of test
equipment.
Alternatively, does anyone know if a diagnostic ROM exists for the Ace?
Something that would replace ROM A and just load the video/font RAM with the
usual Ace character set would be very handy.
The 2114Ls I'm using appear to be OK, but they draw a lot of current - in
the region of 75 to 100mA each.
Thanks.
--
Phil.
philpem(a)dsl.pipex.com
http://www.philpem.dsl.pipex.com/
Curt Vendel of the Atari Historical Society needs help. He's obtained a
bunch of RM05 carthridges that apparently contain a lot of interest Atari
corporate data. He'd like to read these but doesn't have the necessary
gear.
Is there anyone in the New York area (or thereabouts) who has an RK05
drive that they can loan to Curt so he can read these? Better yet, does
anyone have a working PDP-11 system upon which these tapes can be read?
Anyway, if you think you can help, please contact Curt directly at
<curt(a)atarimuseum.com>.
On behalf of Curt, thanks!
--
Sellam Ismail Vintage Computer Festival
------------------------------------------------------------------------------
International Man of Intrigue and Danger http://www.vintage.org
* Old computing resources for business and academia at www.VintageTech.com *
Earlier, Frank McConnell wrote:
> Received: (from uucp@localhost) by skylane.kjsl.com
> (8.12.8/8.12.8/Submit) with UUCP id h515RA9J093507 for
> cctalk(a)classiccmp.org; Sat, 31 May 2003 22:27:11 -0700 (PDT)
> (envelope-from fmc(a)reanimators.org)
> Received: from daemonweed.reanimators.org (localhost.reanimators.org
> [127.0.0.1]) by daemonweed.reanimators.org (8.12.9/8.12.9) with ESMTP
> id h515P4Qo013771 for <cctalk(a)classiccmp.org>; Sat, 31 May 2003
> 22:25:04 -0700 (PDT) (envelope-from fmc(a)daemonweed.reanimators.org)
> Received: (from fmc@localhost) by daemonweed.reanimators.org
> (8.12.9/8.12.9/Submit) id h515P4fo013768; Sat, 31 May 2003 22:25:04
> -0700 (PDT)
> I'm thinking what this means is that you can use TCM to copy 1.44MB
> 3.5" media, but there's no guarantee that it will reliably copy
> media that are copy-protected.
>
Thanks for the info ... that's what I was afraid I was going to hear.
I notice you are connected to kjsl.com via UUCP. There's less and less
of that any more. For anyone's interest in the Ohio area, I've got a
UUCP number in Columbus, and there are still 4 or 5 systems that use
me as an upstream mail hub. Since the mapping project shut down, it's
difficult to find a connection.
- Charlie
--
Charlie Smith classic(a)elektro.cmhnet.org 614-271-1418
http://elektro.cmhnet.org/~charlie/ Columbus Ohio USA
SMS: charlie.sms(a)elektro.com
>From: "Al Hartman" <alhartman(a)yahoo.com>
---snip---
>
>I think if I spot a Jupiter Ace on eBay, I'd like to
>get one. Just for play.
>
---snip---
Hi Al
Don't be surprised by sticker shock. These don't
go cheap like a C64 or something.
Dwight
>From: ard(a)p850ug1.demon.co.uk
---snip---
>
>[2] A useful trick, I don't rememebr where I learnt it, is to pulse the
>reset line at a few 10's of Hz. Slow enough that the machine does
>something after each reset, but fast enough that you get repetitive
>signals to look at on the non-storage 'scope.
>
>[3] A delayed timebase is very useful here....
>
>-tony
>
Hi
Another useful trick for debugging 8080/Z80 machines
is to float the data bus with some pullup resistors
at the uP. This causes the processor to execute endless
RST7's. This will make it loop through the addresses
so that one can easily check out selects and such with
a scope. I remember from my old days at Intel, I had
an 8080 on a home made socket adapter that I could
do this with. It was always the first thing I grabbed
when I had a new system that wouldn't boot. It had a
switch on it so that I could convert the normal PUSH
of the address to be a read instead of a write. This
allowed me to check data buffers in both directions
as well. It seems like the switch changed the pullups
to pull downs to generate NOP's instead of RST7's but
it has been a long time.
Just a thought.
Dwight
John has been making these for years.
Try this link. http://www.dbit.com/fdadap.html
Brian.
Brian Roth
Network Administrator
A+ N+ CNA CCNA
Network Services
First Niagara Bank
(716) 625-7500 X2186
Brian.Roth(a)FirstNiagaraBank.com
>>> Innfogra(a)aol.com 05/29/03 12:48PM >>>
> That way those of us with
> an 8" hooked to a PC could make 8" disks.
>
How do you do this? I am interested.
What floppy controller do you use? I am assuming it is for the ISA bus?
Anything for a PCI bus.
Anything for EISA, I am keeping one EISA bus system.
Paxton
Astoria, OR
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Anyone know what this M233 Disk Shift Reg. goes into? I've checked the
field guides and google, and so far nothing. It is a DEC single height
M-Series Module.
-------------------------------------------
ebaY's Security Breach and Coverup
http://www.auctionguild.com/generic110.htmlSellYourItem.com - Your Member Driven Auction Community!
http://www.sellyouritem.com
On Monday, June 2, 2003, at 01:52 AM, vega wrote:
>
> Hey man, whats your realtime location? Im in new york, I think Id like
> to take a look at some of your shtuff
San Jose, CA
Just been watching John Carpenter's film "Dark Star" (again). There's
a very brief shot of a computer toggle-switch front panel. It seems to
have two rows of 15 lights (neons?) and two rows of toggle switches
(with plastic tips). It looks like a genuine machine, not a made-up
prop, but what machine is it? Does anybody know?
--
John Honniball
coredump(a)gifford.co.uk
Question regarding the PDP-7 (see
http://www.classiccmp.org/pipermail/cctech/2003-June/015291.html)
I am working on the Teletype (KSR33) and wondered if anyone has (a
reasonably priced) one? ASR is a small plus, but not neseccary.
I have a pathetic budget for this (?9, $12-ish) project, but I could
probably scrape up some dough if needed.
I live in Norway, so Europe is a plus. We have the 220v-115v converter
built-in to the stand.
And, does anyone know about the interface of the thing?? Is it RS-232
compatible?
Love, Piece, and Understatements
_____________________
/Tore Sinding Bekkedal\
|toresbe(a)ifi.uio.no |
|+47 91 85 95 08 \_________________________
| Semi-proud resident of Norway since 1988 \
\_______________________________________________/
Hello! Thought I might bring you an update on the PDP-7.
IT FRIGGIN' POWERED UP!!!!
*ahem*
With shaking hands (afraid the huge caps would explode all over me), on
Wednesday 28th of May, I flipped the magic switch. Nothing happened. I
flipped it again, and it worked. The surprise of it not catching fire was
enough for me to yell without noticing it, "It WORKS, damnit!". I then
proceeded to point at it and make a funny sound. Video of this will come
up on http://tore.nortia.no/video when I have time to digitalize it.
The rest of the day was spent testing the memory and the CPU (which mostly
works). Thursday I tested the IO further, as did I on Friday. I got the
paper tape punch to revolve, and feed at the command of the conveniently
marked "Feed" button on the console.
Now, further I/O repairs need doing, and maybe constructing an emulated
Paper-Tape Reader is nessecary - - if so, I'll hook up the punch to it as
well.
Please see http://tore.nortia.no for continuing coverage. If you ever
worked on this machine, especcialy while on DEC's side, LET ME KNOW!
PLEASE; drop me a line!
And yes, we do have software. Lots and lots of it in good condition. Don't
know about the DECtapes though.
Love, Piece, and Understatements
_____________________
/Tore Sinding Bekkedal\
|toresbe(a)ifi.uio.no |
|+47 91 85 95 08 \_________________________
| Semi-proud resident of Norway since 1988 \
\_______________________________________________/
Hello all,
We have a graphics software package called DIAGRAPH which was released
for HP 9000/200 and HP-150 computers each using a different hardware
protection key.
It turns out that we have the software for the 9000/200 but the key for
the 150.
Can anyone help us recover a working set of software and key?
Regards,
-- hbp
Justin, I read your message from 31-Dec-02 about the LK401. I have a
few new keyboards which you can have.
I used sell this stuff but stopped a few years ago. I hate to just
throw them away. I am in Massachusetts if
you are interested.
Paul Donovan
Steve Jones wrote:
> The PDT has no Qbus.
I should hedge my bets here: There is no Qbus backplane in the
PDT-11/150. There are some stacking connectors between two dual-
height sized boards (serial ports and memory) on top and the
middle board, which carries the CPU complex. I believe the bottom
board in the stack is the floppy controller - not sure if the
console circuitry (8085 based?) is on that or the middle board.
Now, where on earth do I have the docs for that critter...
--Steve.
smj(at)spamfree.crash.com (lose spamfree to get through, m'kay?)
Charlie Smith <classic(a)elektro.cmhnet.org> wrote:
> Earlier, Frank McConnell wrote:
> > I'm thinking what this means is that you can use TCM to copy 1.44MB
> > 3.5" media, but there's no guarantee that it will reliably copy
> > media that are copy-protected.
>
> Thanks for the info ... that's what I was afraid I was going to hear.
Still, it shouldn't hurt to try. The TCM chapter in the manual has
several hints that it may work, but I'm guessing it depends on the type
of protection used.
> I notice you are connected to kjsl.com via UUCP. There's less and less
> of that any more. For anyone's interest in the Ohio area, I've got a
> UUCP number in Columbus, and there are still 4 or 5 systems that use
> me as an upstream mail hub. Since the mapping project shut down, it's
> difficult to find a connection.
Yes, although these days it's UUCP over TCP over ADSL. I don't think
either of my upstreams have modems for dial-in UUCP any more.
There was some talk here (or on the old classiccmp list) a while back
about reviving the mapping project, but I don't think it ever came to
anything.
-Frank McConnell
I have for you an NEC pc-8300
and a workslate. The workslate has some software and a pen-plotter
device
Both the NEC and the Workslate itself worked last time I tried them.
I also have a load of MAC laptops and a two or three lunchboxstyle
computers
mostly 386 and 486 and mostly disassembled
In the "real junk" stuff I have a vt220 terminal and a paralell dot
matrix printer that
acted failed when I tried them.
This is just an "off the cuff" list.. expect a more complete list when
I can get a cool morning to
dig up stuff in the garage.
I would like to trade them for somthing...
here is a partial list:
HP 41 calculator (any 41 model)
Rockwell AIM 65
Commodore Portable (I have a 64 that I will add to the deal in this
case.. it works and so does it's 1541)
HP 75 or HP 71 "calculator"
I will entertain other sugestions.
Hi all,
I'm not that familiar with 80 series machines.
Can they be interfaced to HPIB HDD's?
Can their tapes be read on HPIB based tape drives?
If so then it may be possible to read/back them up using the HPIB / LIF
reader software I've been working on.
With the work that I've had to do on command formats I think that I may be
able to code a PC+HPIB card system that emulates CS80 or AMIGO based disk or
tape drives.
This would mean that the old HP system could boot from a PC emulating an
HPIB drive, removing ageing disk / tape drives from the loop.
Are these CS80 / AMIGO command set disks compatible with 80 series machines?
Joe: I have been trying to get hold of you -
How have you got on with the early version of the HPIB drive reader software
that I sent you? - does it catalog your drives OK?
I still need to get the postage cost on the 3 HP-UX manuals I won from you
on ebay so that I can close out that transaction. Let me know and I will
send you a cheque.
Cheers
Peter Brown
_________________________________________________________________
Find a cheaper internet access deal - choose one to suit you.
http://www.msn.co.uk/internetaccess
Hi all,
I have in my hands a "Jupiter" computer and am wondering if you can
offer any info on it? It is not the Jupiter ACE home computer, but a much
earlier very large and obviously fairly old rack mounted system. The computer
is based on the 68010 CPU. I can't determine how much memory it has on board,
but there are more than several banks of 4164 mem chips which if I remember is
a 64kbit dynamic Ram device. The huge keyboard is attached via a missing
multipair cable and has two joysticks on either side. The monitor has separate
RGB and Sync cables, each of which are generated using separate discrete
component boards in the chassis. Inside the chassis are two huge Vertex hard
drives, and a 3.5 in floppy, each connected to their discrete driver boards,
Z80 based.
On the front of the computer is "Jupiter". Model number is J12CHAS and
Man date is "514". It was manufactured in Berkeley C.A. USA. The serial number
is "Jup.S.N. 12C-1025-AA". I basically found it all on a curbside and couldn't
resist adding it too my rather small but now growing collection. If you need
any further info to help with identification let me know, I'll see what I more
I can get from the chassis.
Maybe I'm insane and have just picked up what most would consider
total junk, but I personally think that systems such as this are worth
preserving. I haven't been brave enough to switch the damn thing on yet, with
all that discrete hardware it will probably double my power bill with about a
minutes use. However I love all this old stuff, and worse comes to worse at
least their are some interesting discrete components in it. If you need or
would like a photo let me know, I'm a freelance photographer and will take a
few shots anyway, so when I do I'll pass some scans on to you.
Peter T.
Does anyone remember if the Central Point Deluxe Option Board
can copy 1.4 MB 3.5" floppy disks?
I had one of these boards and gave it to a friend last year.
If it will handle 1.4 MB diskettes, I can probably get it back
and install it on some sort of old 386 motherboard system.
You wouldn't believe the old junk burried in my back bedroom!
Or, given this list ... maybe you would believe it. When I say
old junk, it includes stuff like some IBM 2321 Data Cell strips
and other things of that vintage.
:-)
- Charlie
Charlie Smith charlie(a)elektro.cmhnet.org 614-271-1418
http://elektro.cmhnet.org/~charlie/ Columbus Ohio USA
SMS: charlie.sms(a)elektro.com
