For some reason the misbehaving TC01 controller on the PDP-8/I at the
RICM decide work yesterday. Possibly due to the low temperature in the
RICM warehouse. We took advantage of the situation and formatted and
tested five DECtapes.
Following the procedure in Appendix-A of the 4k Disk System Monitor
System Disk System manual, we ran the DEC-D8-SBAF-PB 4k Disk System
Monitor System Disk System Builder. We told it that the 8/I system
does not have any disks or a high-speed paper tape reader. The System
Builder wrote the Monitor, Loader, Command Decoder, Directory, and
Storage Allocation Block Maps to the DECtape. We were able to enter
the DECtape bootstrap program and boot the 4k monitor.
The next installation step is to add programs to the DECtape. We
continued with the procedure in Appendix-A.4. When the console
displayed an ^ we entered a CTRL-P and then told the terminal emulator
to send DEC-D8-PDAD-PB Disk System PIP-DF32 tape image. After sending
about 1,500 characters the 8/I started echoing the characters from the
tape image on the console and the command processor tried to use the
input as commands. Somehow, after receiving 1,500 characters the 4k
monitor switched from paper tape input mode to command mode.
I am not sure if this configuration can be duplicated on one of the
emulators. If someone could try the monitor installation and
subsequent loading of programs from a real "Teletype" it would be
interesting to see if it works. If it does work, then maybe we need to
add the reader control circuitry to the 20mA/RS-232 converter that we
are using to connect a PC to the PDP-8/I.
Any advice would be appreciated.
--
Michael Thompson
the epson 4490 does a nice job and has inserts.. i shoot medium frormat
btw...
On Sun, Dec 9, 2012 at 3:17 PM, Zane H. Healy <healyzh at aracnet.com> wrote:
> At 3:11 PM -0500 12/9/12, steve shumaker wrote:
>
>> On 12/9/2012 1:34 PM, Joost van de Griek wrote:
>>
>>> On 9 dec. 2012, at 18:14, steve shumaker<shumaker at att.net> wrote:
>>>
>>>
>>> please explain what you mean by "scanning them wet"....
>>>>
>>>>
>>> <http://youtube.com/#/watch?v=**sMnxWknF4SM<http://youtube.com/#/watch?v=sMnxWknF4SM>
>>> >
>>>
>>> .tsooJ
>>>
>>> the link didn't help (doesn't link to anything specific) but it did
>> prod me into doing a google. interesting! Been scanning stuff at fairly
>> high res for years but never heard of that technique before. makes sense
>> though.
>>
>>
>> steve
>>
>
> Rather than wet, here is the route I plan to get once I finally upgrade my
> Epson 2450. It's also part of why I'm waiting for Epson to release what I
> really want. When you factor in the price of both the scanner and the
> mounts I need, it will be an expensive setup.
>
> Zane
>
>
> --
> | Zane H. Healy | UNIX Systems Administrator |
> | healyzh at aracnet.com | OpenVMS Enthusiast |
> | | Photographer |
> +-----------------------------**-----+------------------------**----+
> | My flickr Photostream |
> | http://www.flickr.com/photos/**33848088 at N03/<http://www.flickr.com/photos/33848088 at N03/> |
> | My Photography Website |
> | http://www.zanesphotography.**com<http://www.zanesphotography.com> |
>
>
I have a sizeable number of Intersil 0.3" 14-pin DIP ICs (plastic package)
with a part number "3-200-5" and a 1978 date code.
Google turns up about 500 hits - all of them those obnoxious Chinese sites
none of who have the chip or any data about them.
How do folks work around all the "we find you chip fast, enter RFQ here"
web sites?
Steve
--
It's been a long while since my last post, and I should have cleaned up before
moving rather than after. But I have a pile of monitors and external SCSI
boxes that I'm not interest in keeping. Is there any interest or should these
go to the recyclers.
Apple monitors these came with the 2e all the way upto the LC's I think I
only need to keep one or two so there are several spares
Also older CGA and VGA monitors
a few older terminals
a pair of IBM PC 500 servers
and 3 AS/400 9404s
--
Collector of vintage computers http://www.ncf.ca/~ba600
Ive opened an Etsy store for all the vintage apple and computer items I
have for sale. Makes it easier that way, Everyone can shop at their
leisure. If you dont like the price you see just let me know.
Heres the link to the store. Ill be continually adding items, and hope
to have at least 100 items listed by the weekend
http://www.etsy.com/shop/VintageAppleNMore
Thanks
Steve
I have a limited number of IBM 5151 monitors for sale. This is the
classic green screen monitor that shipped with the basic IBM PC 5150.
Condition is adequate. They are dirty but I will clean them up before
shipping out. Will test for basic functionality. No burn-in or other
problems, but no warranty either.
The price is $30 each plus shipping.
First come, first served.
Please contact me directly via e-mail.
Thanks!
--
Sellam Ismail Vintage Computer Festival
------------------------------------------------------------------------------
International Man of Intrigue and Danger http://www.vintage.org
[ Old computing resources for business || Buy/Sell/Trade Vintage Computers ]
[ and academia at www.VintageTech.com || at http://marketplace.vintage.org ]
Dear CC Talkers and VCF Fans:
The Vintage Computer Festival is currently securing funding for
operations and storage of the VCF Archives for the next 6 months. As
such, the VCF is conducting a limited sale of select items of the VCF
Archives.
As the VCF Archives pretty much contains everything, and due to current
time restraints, the sale will be held as such: contact me (Sellam) with a
wish list, and I'll indicate which of your requested items I could offer
with a description and offer price. We can haggle out a deal from there.
As my funding needs surpass my ability to deal with many small
transactions, I am necessarily limiting the sales to items of a value of
at least $250. This does not mean I will attempt to jack up the prices,
but I would prefer to make single transactions that have a value of $250
or more.
I apologize for the unorthodox nature of this sale but I am in an
unorthodox situation and this is the surest way I know to raise the funds
necessary to secure the archives.
Please e-mail me with your wish lists directly.
Thanks!
--
Sellam Ismail VintageTech
------------------------------------------------------------------------------
International Man of Intrigue and Danger http://www.vintagetech.com
Whatsoever a man soweth, that shall he also reap...The truth is always simple.
Hi! John Monahan and I have been working on an SVGA display compatible
S-100 board and it is almost ready to go.
While it is not SVGA register compatible it does allow for an economical
SVGA compatible display for your S-100 system.
http://s100computers.com/My%20System%20Pages/Lava-10%20Board/LAVA-10%20Board
.htm
http://n8vem-sbc.pbworks.com/w/browse/#view=ViewFolder¶m=S-100%20LAVA
Some additional discussion here on the vintage-computer.com forum
http://www.vintage-computer.com/vcforum/showthread.php?30687
A viable PCB manufacturing order is at least 20 orders just to pay for the
boards, tooling, shipping, etc.
There are approximately 12 "firm" PCB requests and as soon as this project
is viable I will make the manufacturing order.
Thanks and have a happy holidays!
Andrew Lynch
PS, if cash and/or paypal is an issue, we can make trades for certain
computer parts, electronic components, tools, metals, coins, unused gift
cards, shipping materials, scrap, etc. Please let's discuss!
I prefer sequence numbers punched in columns 72 to 80, along with a line or lines drawn on the top edge of the deck. With sequence numbers, you could use unit record equipment to re-order them.
-----Original Message-----
From: Todd Goodman [tsg at bonedaddy.net]
Received: Friday, 07 Dec 2012, 4:56am
To: General Discussion: On-Topic and Off-Topic Posts [cctalk at classiccmp.org]
Subject: Re: Fan Fold paper tape
* Mike Loewen <mloewen at cpumagic.scol.pa.us> [121207 07:31]:
> On Thu, 6 Dec 2012, Dave McGuire wrote:
>
> > On 12/06/2012 11:01 PM, mc68010 wrote:
> >>> I may try to grab this box of paper tape. -Dave
> >>
> >> Please grab it tightly. All I can think of looking at those pictures is
> >> what it must be like if that all came out of the box. The horror !
> >
> > That's been happening to me with big programs since I was in my teens,
> > man. I'm used to it. I find the re-folding to be very relaxing. ;)
>
> Do you also find sorting dropped boxes of punched cards to be relaxing?
> :-)
I do, as long as there was a diagonal line drawn across the top of them
before they were dropped.
Todd
What drew me to it was the .20 cent listing fees.. They only take a 3.5
percent cut of your final value. Pictures are free and you can list as
much as you want. The listings last 3 months too which makes it even
better.
Feel free to chime in your thoughts on my pricing. Im listing a ton of
vintage apple.
It's too late now to tell that mad Ozzie Dave not to tear it down. But
here's the video for those so inclined (and by the way, Teardown Tuesday is
great fun each and every week!)
http://www.youtube.com/watch?v=CBjoWMA5d84
Be sure and lookout for the Official Australian Safety boots.
Bernd,
Greetings! I have a mysterious ISA card and after researching, I found an old post from 2007 which contained a conversation you were having regarding an Opus ISA
SparcCard.? I'm curious if this is what I currently have.
Do you happen to know of any online information about getting this working?? I was going to recycle it but it seems a shame if it is a bit of history and of unique functionality.
Any help is most appreciated and thank you!
Paul Anderson
Greetings everyone,
I just wanted to bring the following 2 items to the lists attention. I'm
surprised I've seen no discussion about the record setting prices from the
recent Auction Team Breker sale last week where an Apple I sold for about
$640,000 and an Altair 8800 reached $16,000. WOW! Does anyone have any
insights to these? Do you think these prices were due to auction excitement
or new global interest in the value of collectible computers?
http://acn.liveauctioneers.com/index.php/auctions/auction-results/8714-apple
-1-computer-sells-for-640000-at-auction-team-breker
I have a bootable 100MB RSX-11M image in SIMH
that I'd like to blast onto a Zip disk and boot through my
CQD-220. I'm running a build on SIMH that's essentially
identical to my machine, so it should be straightforward,
but when I try to boot my disk, I get a "not bootable"
response from the ROM (the activity light on the Zip
drive does flash momentarily, so I know something is
going on, but it doesn't look like it's taking enough time
to actually seek anything (and when I boot through the
bootstrap provided by the CQD-220 ROM, I get a HALT
at 000002, which tells me it's probably getting all zeroes).
I know at least some of you boot your -11s off of Zip disks,
probably with similar cards. What am I missing? As far
as I can tell, the SIMH disk image format is a headerless
binary blob, but it doesn't look like I'm getting to the point
where that even matters yet.
- Dave
I wonder if that was originally from Tri-Valley Growers.? a very large agricultural Co-op based in Modesto (nearby) that went bankrupt in 1999.? They were heavy VAX and later alpha users and would show up fairly regularly at BAYVAX meetings back in the day.? Not sure about the graphics thing though, can't remember them talking about that, but it's been a while.? Just for fun I googled for "tri valley growers vax" and was surprised to see how many people out there have that on their resumes.? Pretty fertile ground for computer people as well as fruit.
Regards, Jim
I like to run an older Cisco multibus router with my old computers, just to keep it
all 'vintage' and I'd like to find a spare router if anyone has one. Any of the older
Cisco 'multibus' AGS routers would be of interest. I'm in the UK, but would pay
for postage from overseas. Thanks.
For anyone resident in the UK and missed it, this program is a "must watch":-
http://www.bbc.co.uk/iplayer/episode/b01p65b7/Britain_on_Film_The_Joy_of_Te…
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I stopped by Free Geeks in Portland Oregon tonight and they had a nice
condition Heath Z-19 terminal for $60. I didn't have the extra cash to
buy it but thought I would post it here. The cosmetic condition of the
terminal was very good. I looked inside and it appears complete and it
is just a terminal. I did not power it up.
Paxton
--
Paxton Hoag
Astoria, OR
USA
I'm now ready to take orders for P112 kits from people who didn't get
onboard the Kickstarter project. For a complete kit (board and all parts
that solder or plug into it), the cost is $200 to addresses inside the US
-- $215 outside the US. If you want one (or more) please email me with
your Paypal address so I can make up a proper invoice. Alternatively, I
will accept check and money orders.
If you want Terry Gulczynski to build and test the kit for you let me know
and I'll get that set up. If you're outside the US and want this service,
you can pay the inside-the-US price. I'll ship the kit to Terry. He'll
charge you for his services and ship you your board. If you want to order
a GIDE board at the same time, he can do that too for you. He'll also
sell you the GIDE board by itself if you want to build it all yourself.
--
David Griffith
dgriffi at cs.csubak.edu
A: Because it fouls the order in which people normally read text.
Q: Why is top-posting such a bad thing?
A: Top-posting.
Q: What is the most annoying thing in e-mail?
>
> > > idiots with too much disposable income.
> On Tue, 4 Dec 2012, Dave McGuire wrote:
> > ...or, playing devil's advocate here, rich people with a much better
> > idea of an item's value than this (notoriously over-the-top cheap) crowd.
>
> How do I find those guys? I have a lot of crap^H^H^H^H valuable items
> that they should buy!
>
I'll bet they'd love to buy lots of R at RE gold plated IEC to BS1363 power cords.
To be posted for members:
I am president of the IBMSFQCCAA and we have spent the last few years
restoring IBM PC, PCXT, PC Jr, and PS 2 units. We have a number of parts and
some functioning units available for you if you are interested in covering the
shipping. We also have a significant number of associated Hardware and
Software manuals. Let me know if you are interested. ---- Jud
Justin (Jud) McCarthy
251 SW 9th Ave
Boca Raton, FL 33486
Home (561)391-1422 Cell: (561)504-7048
In a message dated 11/22/2012 7:27:50 A.M. Eastern Standard Time,
cctech-request at classiccmp.org writes:
cctech at classiccmp.org
Hello.
I'm trying to identify some DG boards using the 107-xxxxxx-xx numbers.
There's a reference list to associate these numbers to the product series?
BTW, the numbers I have are these, with draft descriptions:
ALU Arithmetic Logic Unit Board. 107-001627-02
Dual Video Board. 107-501548-01
Disk Controller Board. 107-000375-06
ILC Intelligent Local Network Control Board. 10700205403
Disk Logic Board. 107-00089104
Servo/Clock Board. 107-000738-01
Sync / Async Controller Board. 107-00083404
MVII Bus Repeater. 107-00218501
Thanks
Andrea
The old IBM terminal is gone, as is all of the Display Write stuff.
The HP terminals are also gone, as is the original Apple ][, and a few of
the Apple single floppy drives.
The Apple III is also gone, but the Lisa is still here.
Those who wanted things (other than what is sold above), please email me
again, and I will get you pics and requested prices.
Cindy Croxton
Electronics Plus
1613 Water Street
Kerrville, TX 78028
(830)792-3400 phone (830)792-3404 fax
AOL IM elcpls
_____
No virus found in this message.
Checked by AVG - www.avg.com
Version: 2013.0.2793 / Virus Database: 2634/5934 - Release Date: 12/03/12
FYI
I was looking to see if there was a patent on the 3M Kappamat format, and came across patent 4422111
which appears to describe the DC600HC 16 track format. These drives were used in early 80's HP combo winchester/tape
systems. A HCD-75 manual is on bitsavers under 3m/
On 18 November 2012 19:14, Ed Spittles <ed.spittles at gmail.com> wrote:
> On 16/11/2012 08:13, ben wrote:
>> On 11/16/2012 12:50 AM, Ed Spittles wrote:
>>>> [conversation about Wireless World articles - a digital computer
>>>> built from reject germanium transistors]
>>>
>>> Aha: here's an online version of a pamphlet reprinting that article
>>> series, which gives credit to Brian Crank:
>>> http://www.smrcc.org.uk/members/g4ugm/Manuals/wirelessworldcomputer.pdf
>>>
>> How come this was never posted when you still could get germanium
>> transistors. :)
>> Ben.
>>
> There was a dire shortage of the very rare round tuits during that
> period of my life, plus no access to a decent scanner. I actually wrote
> my first program when I was 17 or 18 years old ( so 1971/2) on a
> germanium transistor computer that had been built by my school derived
> from the wireless world design. I was taught by the school Music
> Teacher Hector Parr (http://www.hectorparr.freeuk.com/) who learnt to
> program so he could calculate tables of Organ Pipe lengths to assist in
> re-building the School pipe organ.
>
> Dave Wade G4UGM
Fantastic! I got in touch with Hector Parr, and he directed me to a
memoir he's written, and I now have a story: One Alan Wilkinson wrote
the book 'Computer Models' (a copy is now on its way to me) which is
most likely inspired by Brian Crank's article series. Alan was
teaching at Spennymoor Grammar School, and Hector was teaching at the
nearby Darlington Grammar School. Hector read Alan's book and
proceeded to get the Maths department and pupils to finance and build
a machine called DENICE, designed from scratch but with inspiration
>from the book.
Alan moved on to Teesside Polytechnic where he looked after an IBM
1620, which was made available to schoolchildren.
Hector later taught at Barnard Castle School, where he was
photographed in 1978 with a different computer:
http://ww2.durham.gov.uk/dre/pgDre.aspx?ID=DRE10345&PIC=Y
His memoir can be bought at
http://www.lulu.com/shop/hector-c-parr/music-maths-and-machines/paperback/p…
- there's a copy of this too on its way to me.
I now discover that Alan's book has been referenced at
http://en.wikipedia.org/wiki/Transistor_computer#cite_note-15
since Nov 2010.
(As for the reported cost of ?50 in the late 60's, I'm told a weekly
shop for a couple would be ?2 and a pint of rough cider would be 1/9d
(that is, 21 old pence, which were 240 to the pound.) According to
http://safalra.com/other/historical-uk-inflation-price-conversion/,
the project would cost ?750 today, although those anecdotal prices
suggest rather more.)
I wrote up some notes on the WW machine here:
http://forum.6502.org/viewtopic.php?f=3&t=2333
Cheers
Ed
Hello.
I'm trying to identify some DG boards using the 107-xxxxxx-xx numbers.
There's a reference list to associate these numbers to the product series?
BTW, the numbers I have are these, with draft descriptions:
ALU Arithmetic Logic Unit Board. 107-001627-02
Dual Video Board. 107-501548-01
Disk Controller Board. 107-000375-06
ILC Intelligent Local Network Control Board. 10700205403
Disk Logic Board. 107-00089104
Servo/Clock Board. 107-000738-01
Sync / Async Controller Board. 107-00083404
MVII Bus Repeater. 107-00218501
Thanks
Andrea
One of my HP 2113B CPU's doesn't boot the right way, after switching it on
all lights are on except the over flow light which stays out.
I know it should be an memory error, but removing all the memory boards and
starting with a known good memory controller and memory board gives the same
result. Because the PSU has the power fail option and I removed the
batteries and placed the plug at the battery in connector, I now suspect the
PSU.
The voltages checked out ok, except the 5M and 12M voltages come up a few
seconds (5 to 10 seconds) later than the rest of the voltages. I'm afraid
the time interval is too long but I'm not sure.
Is there anyone who knows what the interval should be ?
Or has any clou why it's not working ?
-Rik
What is the "S" variant of the 11/35? It's different enough to have its fiche
but since I can't yet read the fiche, I don't know what distinguishes it from
the "regular" 11/35. Does anyone know?
Thanks,
Jack
> From: Pontus <pontus at update.uu.se>
> Date: Sun, 02 Dec 2012 23:43:59 +0100
> Subject: Re: System Console from PDP-10 KA10 System Number 105.
> On 12/02/2012 04:29 PM, Michael Thompson wrote:
>>
>> The System Console from the DEC PDP-10 KA-10 System #105 at
>> BOCES-LIRICS was recently donated to the RICM.
>> We are considering mounting a System-on-a-Chip to the back of the
>> console and making it a "live" PDP-10.
>>
>> For more information on the console see:
>> https://sites.google.com/a/ricomputermuseum.org/home/Home/interesting_compu…
>>
>
> Very nice. It is smaller than I have imagined. Bruce Maier is excellent for scale :)
>
> /P
Keep in mind that Bruce is taller than most people, so the console is
pretty big.
I will take some better pictures next week and add some objects for scale.
--
Michael Thompson
Im still doing the big warehouse cleanout. I have lots of everything
I have the following PowerMacs and 68k Macs, and Apple IIGS Monitors
and Monitor IIs Multiples of each
IIGS Monitors are 25 dollars each
Monitor //s are $25 each.
PowerMacs all have RAM and SCSI HDDs, Priced to sell at $40 each
7300/200
7600/132
7500/180
Beige G3 MT 333mhz
6100/66
6100/60
8100/80
8100/110
7100/66av
7100/80
9500/200
9600/200
8500/200
68K Macs all $40 each
IICI- Lots of em
IISI- Lots of em
IICX- Lots of em
Quadra 650 4 of em
Centris 610
Centris 650
LC II's, LC IIIs
Keyboards, Mice you name it I have it.
I still have about 48 skids of stuff to pick up and sort through
Thanks
Steve
The System Console from the DEC PDP-10 KA-10 System #105 at
BOCES-LIRICS was recently donated to the RICM.
We are considering mounting a System-on-a-Chip to the back of the
console and making it a "live" PDP-10.
For more information on the console see:
https://sites.google.com/a/ricomputermuseum.org/home/Home/interesting_compu…
--
Michael Thompson
Remember the Model 1? I'm just letting the list members know I put a
YouTube video up covering this classic
This is the last notice I'll post on classicmmp.org regarding these videos.
I intend to gradually cover all the machines I've got and I don't want to
be accused of spam by using the list to notify people, even if some may be
interested.
Just subscribe to my YouTube channel if you want to
be alerted to subsequent videos.
Cheers
Terry (Tez)
> > > > > (DE15F to MiniDin-4 labelled "ADB")
> > > > > DE15F to DE9F
> > > THAT one is labelled "RS232C"!!!
> > I asusme it's the PC/AT serial port wiring. Althought i thought that
> > RS232C actually specified the DB25 conenctor.
>
> and I have NEVER seen a DE15 used for any kind of serial.
>
> Considering that these cables probably came from an LCD projector, it is
> PROBABLY a monitor adapter of some sort. Somebody clueless may have
> looked at the DE9 and automatically labelled it as "RS232" (as a misuse,
> meaning serial)
Err, not necessarily. I'm rather thinking that the corresponding LCD projector ("beamer") might have included or at least supported a "presenter", i.e. a wireless, handheld mini-trackball or hat-switch type pointing device, whose signals are relayed to the host system via the respective pointing device interface.
As only one of these interfaces is needed at a given time (ADB when connected to a Mac, either RS232 or PS/2 for a legacy PC, or USB for a modern one), it kind of makes sense to bring these out in a single connector (in this case, the DE15) and include the different adapter cables for connecting it to the host system.
I got a similar set of cables some years ago, these had a not-quite-MiniDIN connector at the projector end and either DE9, MiniDIN-6 or USB on the other. They were factory labelled as belonging to an ASK C105.
If so, very usefor for somebody having the corresponding projector, not so much for anyone else.
Hope this helps - so long,
Arno Kletzander
Just in case anyone's interested -- there's a complete (in-box) NEC
PC-8500 setup for sale at Aladdin's Antiques in Bellingham, WA.It's in
the area behind the front desknear an Amiga 2000:).
This is a 64K Z80 system in clamshell laptop form-factor, running CP/M
>from ROM. 80x25character LCD display, runs off of 4x"C" batteries. The
unit for sale includes the basic system, PC-8441A-K CRT/Floppy
Interface, and PC-8431A Floppy Drive.
There weretwo complete sets, but I bought one of them :). Works great
so far. They were asking $85 for the complete set, but I talked them
down a bit.
- Josh
I got this email and I'm not close enough to pick up so forwarding to this
list. Reply to John Murray jh.murray @ comcast . net, not me or list
---
Unknown condition, but the stuff was operational 20 years ago. Already
gave some stuff away, but missed this stuff. Been in my garage:
M8317
M8350
M623
ribbon cables
power controllers
Reside in Denver area.
First come, first served.
Hi
One of the N8VEM builders wrote a draft magazine article that provides a
great overview of the N8VEM home brew computing project. It is so good I
thought other hobbyists would like to read it and better understand what we
are doing.
http://n8vem-sbc.pbworks.com/w/file/61597682/N8VEM%20article.doc
Most of these PCBs I have physically on the shelf waiting to go to builders.
Others will be reordered and builders always have the option of getting
their own based on the information on the website.
http://n8vem-sbc.pbworks.com/w/page/35044530/PCB%20Inventory
Please send me an email if interested. Thanks and have a nice day!
Andrew Lynch
Make sure all your connections are firm and good, especially the PMI connection over the ribbon cable.
I'd probably even take the ribbon cable off and re-crimp it in a vise to make sure the connections are firm.
I am Looking for a Bootable 8" Disk Jockey 2D-B Floppy.
Preferable a Single Sided One formated for 1024 Byte Sectors.
I have copies of a Floppy but was unable to copy the System Tracks.
I Need one that will let me rebuild those floppies
Can anyone Help
trebor 78 at execpc.com
Drop spaces and replace at=@
Thanks
Bob in Wisconsin
Fred wrote:
>
> > > IEC power cord with mains plug 2 straight blades in a line, with
> > > perpendicular ground blade "13A 250V" "Fused"
> > Almsot certainly a UK (BS1363) mains plug. The 'blades;' should be quite
> > thich rectanguar pins, with the earth pin larger in all 3 dimensions to
> > the others. The fuse is a 1" long cartridge fuse either inside the plug
> > 9if it's not moulded to the cable) or under in a holder on the pin face
> > of the plug.
> Yes
>
> Do you want them?
>
> If not, does ANYBODY want that kind of stuff?
> (There is a metric buttload of stuff that I can't even get to until some
> stuff starts leaving. (Y'know those puzzles with square pieces with
> numbers on them, or different shaped rectangles, and one unoccupied
> square? - I need to clear that "unoccupied" square!))
> I would prefer to not have to pay much postage nor dump fees to get rid of
> it.
>
Much as I sympathise with the puzzle problem, I can't imagine that there would
be many who are interested in these. In countries where BS1363 sockets are used,
IEC power cords with BS1363 plugs on them just accumulate without anyone having
to do anything. We use them here in Ireland and I've got a big box of those
leads. (Anybody want some?) In other countries, they are not much use unless
someone decides to fit out their workshop with BS1363 sockets.
Regards,
Peter Coghlan.
I am working on getting a Commodore PET 2001 Chiclet keyboard working again. Some of the keys were not working. So I disassembled it and cleaned it. But some of the keys still didn?t work properly. I noticed that some of the keys had something metallic on the bottom of them and others didn?t. It appeared to be random. I talked to some friends and they seemed to think that that the rubber in the keys is a sorta conductive silicon. My suspicion is that this silicon becomes less conductive over time or is not reliable to being with. It seems that the previous owner had fixed some keys by adding some metal to the bottom of the keys. I think it is ordinary aluminum, but I am not sure. When I replaced one of the keys with the thin metal on the bottom to previously not working key, then it worked. My plan is to put this metal on the bottom of all the keys so that they will all work and be reliable. If anyone knows what kind of metal it is and where I can buy it, then I would appreciate it !
Thanks,
Jeff Brace
Hi
Received a request for help on a MC68360 prototype board. This is an intermediate step to the planned MC68040 SBC. If anyone has expertise with the MC68360 and can help please contact me at LYNCHAJ at YAHOO.COM or on the N8VEM mailing list.
Thanks!
Andrew Lynch
From:
To: n8vem at googlegroups.com
Sent: Sunday, November 25, 2012 7:58 PM
Subject: [N8VEM: 15020] 68360 help
Hi
I have been working of the MC68360 prototype that would be the precursor to the 68040 build. ?I am stymied and would like any ideas on how to proceed. ?Attached are the schematics. ?What I observe on power up is that RESTH* is always low - it is pulled up with a 10K resistor. ? I have tried all kinds of things to figure out why this is so but can not seem to crack this. ?I feel if I can get past this always low condition I might be able to make progress would be greatly appreciated. ?I also have a couple of bare boards if anyone is interested in taking a stab at this.
Thanks in advance?
Dave--
Hello.
Do you still have an image of the ROM data?
I would study it a little, as producing a formatter (also using TU58
mechanics but different electronic) would be very interesting...
Andrea
> I've disassembled the firmware its not there. It's not that hard to do
> the reason I say modded is the 8085
> has only has 256bytes of ram and 2k of rom on the board. So bypassing
> the 8085 or extending the memory
> and firmware by modding the board for more rom space and maybe ram space
> could make the needed
> formatter. In the end you need the TU58 board for the drive interface
> and motor control.