> Date: Sun, 15 Dec 2013 15:08:15 -0500
> From: John Wilson <wilson at dbit.com>
> To: "General Discussion: On-Topic and Off-Topic Posts"
> <cctalk at classiccmp.org>
> Subject: Re: PDP-11/23+ serial ports
>
> On Sun, Dec 15, 2013 at 08:49:39AM -0800, Al Kossow wrote:
>>>I did a tiny (practically free at OSH Park) PCB a while ago that adapts
>>>10-pin ribbon cable to a DB25P (wired as DTE).
>>
>>Was anyone going to have any of these made up?
>>John, do you have any right now?
>
> I have a couple left, which you're welcome to. And I'd be up for ordering
> a bunch more just to have around, so let me know if you want to add to that.
>
> John Wilson
> D Bit
>
John,
How much will you need for each of these in case others want one (or two)?
Thanks,
Bob
It's longer than I would like but you can't short-change a classic. Here is
a remake of my TRS-80 Model 1 video, now in HD.
http://youtu.be/wgKWV8C3e7M
On Sat, 14 Dec 2013 22:02:48 +0000 (GMT), ard at p850ug1.demon.co.uk (Tony
Duell) wrote:
> To bad the parallel port has also gone the way of the serial port.
> Indeed. IIRC those USB to Centroincs printer 'cables' don;t allow you to
> toggle individual port lines like that.
They don't, at least not unless you write your own driver, and even then
quite possibly not. I investigated these when I wanted to get my PROM
programmer working. They come with Windows printer drivers and don't
support ECP/EPP, so for any purpose except interfacing to a dumb
parallel printer they are useless.
> That's why I said an old-ish PC. Meaning one with a parallel port, not
> (jsut) USB.
>
I got an old PC from a thrift shop for just about nothing. Plug in a
network card and it connects to my local network and I'm in business.
Evening,
Whilst I'm putting together a mouser order, I might as well order
EVERYTING i'll need...
With the PDP-11/23+, as I won't have the cabinet kit for it, does the
9-pin connector break out to standard RS-232 with baud rate configured via
switchblocks? There's two of 'em, which one is primary?
I'm assuming the pinout is documented in a manual somewhere as well,
correct?
--
Cory Smelosky
http://gewt.net Personal stuff
http://gimme-sympathy.org Projects
Hello,
Anyone know anything about this or have any manuals? I plug in to its RS-232C port...and I get nothing. No input, no output. I would love to figure this speech synthesis thing out...but I don't have enough starter info!
Any help appreciated!
Hello,
I have a VAX 400-100A with P_CACHE giving many errors.
I suspect that a motherboard replacement would be necessary.
Anybody has one to sell (also faster models like KA53 and KA54 could be
good)?
Thanks
Andrea
Yay! Woo Hoo! Great news! We have S-100 68K CPU running!
Once this project is working maybe we could take another look at the 68360
P1 and/or 68040 SBC?
This is really great news! Please post pictures and notes on the wiki!
Let's get the word out!
Thanks and have a nice day! You've already made mine! w00t!
Andrew Lynch
PS, this project has been in work for 2 years+ so I am very happy to see it
working.
From: n8vem-s100 at googlegroups.com [mailto:n8vem-s100 at googlegroups.com] On
Behalf Of yoda
Sent: Monday, August 12, 2013 10:40 PM
To: n8vem-s100 at googlegroups.com
Cc: monahan at vitasoft.org
Subject: Re: [N8VEM-S100:1808] S-100 68K CPU board V3
Hi John
Thought I would give an update - found the problem with memory - it turns
out pin 1 of U2 on the board had a cold solder joint - guess it finally gave
out. Reflowed the solder - the ground plane is a pretty big heat sink
around pin 1 and can easily get a cold solder joint. Any ways after
repairing that and playing with jumpers and switch settings I have 1 Meg of
memory working with the S100-68K-V3. I also have the oscillator at 16MHz
so the CPU is running at 8MHz and is a buss master. I am using the short
S100 mother board from the group so it may have better noise immunity than
the 22 slot mother board like you are using. I will do some more testing
and want to boost the memory to at least 2 Meg for some experiments. I
will get started next on the new monitor and getting data to load from the
IDE CF card. Looks like I am on my way to getting CP/M 68K ported. I
have a little clean up to do in a couple of areas (upgrade to latest
compiler code, etc).
Dave
The Chicago Transit Authority is auctioning off a number of items, including an Intel MDS 720 system. The auction is at http://www.ricklevin.com/auctions/Online-Auctions.aspx . Item number is 120. Current bid is $75. The system looks fairly complete, with several CDC disk packs and drive. I think it is for local pick up only. Auction ends in 5 days.
?
Bob
I have my HP-150 cleaned up now. I also have a 9121 with two single-sided
floppy disk drives. I have cleaned them up, unblocking the eject mechanisms
gummed up with dry grease.
Now I want to get the system running. I have found the disk images on the HP
Museum site. They are Teledisk images. I had not come across this program
before, so I set up a DOS machine and tried using Teledisk to write to a
double-sided double-density disk I have. It seemed to work, getting to the
last track and then complained about the disk drive not being ready. I tried
the disk in the HP-150 in any case and it booted up ok, although I think one
of the files may not have been right, so perhaps the disk is not fully
written.
I wanted to convert the TD0 files to IMD format (Dave Dunfield's ImageDisk
program) as that is more legal than using Teledisk, but ImageDisk seems to
struggle reading the floppy disks that I managed to create with Teledisk.
Has anyone converted these TD0 images to IMD already?
Regards
Rob
Hallo,
I'm clearing out some duplicates and mismatched material from the JHU ACM's
collection of old stuff that I try to call a "museum". All of this is, at
the moment, located in Baltimore, MD; local pickup can be easily arranged.
Bringing things to Pittsburgh is also an option, though you?ll have to
tolerate some latency (I?m infrequently at CMU, so?).
The current list of materials is available at
https://docs.google.com/spreadsheet/ccc?key=0AqVSp8UyoZ_bdDFGXy1JTWlfZ2FLMX…
I?ve tried to be reasonable about initial asking prices, mostly going by
what?s up on eBay right now. If I?ve wildly missed the mark, please let me
know. Speaking of eBay, these are going up there eventually, but I thought
I?d offer the mailing list first.
Dead Trees and Media:
Most of the dead-tree part is comparatively un-interesting or common, and
so I would be happy to part with it for the cost of shipping and an
entirely optional donation (can you spare $1?) towards the museum's
efforts. Some appear not to be in any of the archives I know of; I'll cover
shipping them to you for a promise that they end up there, if that's the
case. :)
Actual "Classic" Computers: Sun Enterprise E450, 3x Sun Ultra 5, Sun
SparcStation 5, Sun SparcStation 4, HP 712/60
Other Bits of Technology:
Sun UltraSCSI external enclosure for half-height disk drive (sparcstation
decor)
Sun SCSI external enclosure for full-height disk drive (IPC/IPX decor)
Two reels tape, presumed identical; one labeled ?AMPEX 874 CATT 1600 CPI -
3200 FCI?
Myricom Myrinet Fiber Switch (M3-CLOS-ENCL) w/ cards.
Numerous MyriNET PCI-X Fiber cards.
There's sure to be more stuff over the coming year, too, as just how much
space the department takes away from us in our upcoming move becomes
clearer. :'(
Thanks!
--nwf;
