With all this talk about making a LK201 work on a PC or vice versa - and
this moderately-broken Amiga keyboard I have laying around - I was
wondering if anyone could give me some info so I design/build an adaptor
to make a PC (perhaps mac or some other KB) work with an Amiga? With the
lack of a surplus of Amiga kb's on the eBay market, I was thinking it
might be a worthwhile hack.
Mostly I guess I just want a source of info about the Amiga keyboard (this
is for an A2000 btw) so I could think about how I might design it.
Thanks
-- Pat
>Let me check... I have half a dozen of these in various states of repair and
>probably, IIRC, have one extra legal tray. I can probably part with that if
>it will do someone some good.
Yes... I am still on the hunt for a legal tray for that printer engine (I
don't care specifically which model it comes from, as long as it fits the
SX engine that is used in the HP LJ 2, and Apple LW IINT among other
printers that use it)
I do have enough letter trays, so I am only in need of a legal size tray
(and if anyone has it, an envelope tray might come in handy as well)
-chris
<http://www.mythtech.net>
> From: Tony Duell <ard(a)p850ug1.demon.co.uk>
> It's not a kludge to use a HD drive to write DSQD disks. It's _designed_
> to do it.
If a drive is *designed* to use a certain type of media, then of course
it's not a kludge.
As I originally said, match the media and the drive and live a happy life
;>)
Glen
0/0
>Chris I have 2 letter trays - looked all over for legals - nogo. Does $10
>for a letter tray (includes USPS to the C-U area) sound OK to you? I'd have
>to get $12 total if you use Paypal to cover the fees or you can stay at $10
>and send me a money order. Let me know when you can.
I would say the price sounds great... but I have spare letter trays
already, so I don't need more.
Sorry :-(
-chris
<http://www.mythtech.net>
>I'll look and see if I have a legal - I have a box of LJ 2 and III trays,
>not sure if I have legals left though. Shipping to the C-U area from here is
>cheap and then a couple bucks for the tray would work. I need more space
>around here anyway.
Yeah if you have one that would be great. The HP had no trays when I got
it. I had a spare letter try for my Apple which fits nicely (although is
grey rather than brown, but who cares).
Let me know if you find a legal try (or any good parts/trays) and how
much you would want.
Thanks!
-chris
<http://www.mythtech.net>
> Gunther Schadow wrote:
>
>PPS: Have your guys ever tried to build Ultrix from sources? I
found
>some critical pieces missing, like /usr/sys/sys/kern_lmf.c and
possibly
>more.
Having used Ultrix maybe for a few days total
(and that was perhaps five years ago) I'm
probably not in the class of user that builds
it from sources :-) but I'll try not to let that
inhibit me from replying ...
The lmf bit of the filename suggests
Licence Management Facility to me.
DEC never intended this as anything
other than a tripwire (at least on
OpenVMS) meaning that although
you could fairly easily get around it,
you'd have a hard time arguing in court
that you just typed in something by
accident! Giving away the sources
would have lowered the "energy barrier"
too much, so it was always dropped
from the OpenVMS Source Listings
distribution. AFAIK, all LMF implementations
were based on the same core ideas, so
it would have been hard to release
the innards on any platform.
Antonio
> --- DAVID YOUNG <DAVIDINTEL(a)attbi.com> wrote:
> > yes it's a regular mouse, 2 feet no ball
>
> This has to be the punchline to a really baaad joke.
>
> ... or the set-up to "that reminds me of girl I used to know..." :-)
I'd assumed the extremely slow feed today was due to
some new OFF-TOPIC filter that Jay had put in place,
and thus avoided posting, as I'd hate my friends here
to be depraved^H^H^H^Hived...
But if so, it sill needs work...
-dq
Over the last week I've had two different individuals contact
me and offer me systems. One was a KIM-1, including all three
manuals, "KIM Hints" and the classic book "First Book of KIM"...all
for $25. The KIM is a Rev. G board and looks to be in really nice
shape. He had rescued it from the curbside trash outside of a
college dorm!
The second system is a SWTPc 6800. It includes lots of
documentation and the SWTPc minidisk system, as well as various FLEX
disks and a few additional boards. He's also informed me that he's
going to include a terminal kit that he had gotten for it. I believe
he said that the kit was made by Netronics...I'd have to doublecheck
that. It's costing me $50 plus shipping. I don't actually have it
yet but am certainly looking forward to receiving it!
Jeff
--
Home of the TRS-80 Model 2000 FAQ File
http://www.cchaven.comhttp://www.geocities.com/siliconvalley/lakes/6757
> I've managed to get the case open, but... well, this
> is rather embarassing... I can't quite seem to figure
> out how to get the drive itself out.
That's OK, you wouldn't beleive the trouble my PDP-11/44 CPU gave me with
regards to getting the chassis out of the rack! Finally had to transport it
in the rack because no one could figure out how to unrack it. I've run into
some IBM gear that's like that also, it takes half of forever to figure out
how to get into it.
In this case isn't the HD on a sled like the BA23's and BA123's use? I
think there is a tab under the drive, that you push down on then pull the
HD forward. Of course my memory is fuzzy, I've not touched my VS2000 in
several years.
Zane
WooHoo! Working copies of both the Maintenance & Customer
diagnostic tapes!
I'm almost ashamed of the way I got it done -- classic Unix "go with
what you know" low-tech. I'm also not convinced the originals are
reliable, but I am convinced I got true copies of them.
The TKZ50-GA doesn't read the old tapes well at all, so I ended up
doing the rips on the MV-II itself. The TUHS "cptape" utility, which
copies each file from tape to disk and records blocksize for each file,
extracted both tapes without error on the MV.
So I've got the contents of the tape on disk, with 2/3 of the files
having a blocksize of 80. The TUHS maketape doesn't know anything but
N*512 blocksizes, so that's out, and the tape has to have a TapeMark at
each file, so I can't just cat 'em all into a single file. I tried
setting blocksize to 0 (variable) and running a dd loop, but the drive
pukes with an "Undefined error" fairly quickly. So I just made a script
that uses mt to set the blocksize every time it changes, and dd each
file to tape. All 172 files. I couldn't remember how to compare file
sizes in a test statement, so no loops. Bah!.
It's the Kludge from Hell, but it works. Anybody with a Unix system &
a TK<whatever> oughta be able to use it.
The 2 tarballs are about 1.5MB each. Assuming you have a license to
use it, I see no reason not to help replace your media. :^)
Doc
Paging Gary J. Oliver...
I think I tried this before, and didn't get a reply.
He used to work for Alpha Omega Computer Systems, Inc.
There is a gary Oliver living now near Coventry, who may
be the same guy, but a bit far from his former residence.
He'd posted here in '98 about a CDC 3300 simulator he
was working on.
If anyone knows him and/or knows how to reach him,
I'd appreciate it if you caould help facilitate
my contacting him.
Thanks,
-doug quebbeman
> IIRC the Floppy on an Altos 580 is DSQD.
Am I correct that while different from standard
DSDD, they are *not* GCR drives?
What other machines might carry these drives, can I
hook one up to a standard PC controller in a box
running DOS, and then duplicate the disks?
> I had one that had the CMI hard drive replaced with a Seagate ST225. So I
> know they will take similar configured Hard Drives. I think they will take
> 10, 15 and 20 Meg HDs.
This is good to know, ST225s still pop up from time to time...
-dq
hi
I will be interested by the vax 7000 - And also I have a lot of
vax 3100 4100 as 800 4100 2100 etc
and ds20e es40 etc ...
give me a call if you can sale them to me
Laurent LUU
Account Manager & Trader Compaq Sun Cisco
IB Remarketing is a Remarketing Products Compaq Distributor Company.
Red Systems IB Limited, London.
IB Remarketing SA, Paris.
0044 (0) 207 336 7333 Office London UK
0044 (0) 207 336 6546 fax London UK
0044 (0) 7796 992 664 cell phone UK
IB Remarketing
00 33 1 48 19 23 71 Office Paris
00 33 6 60 17 47 49 Cell phone Paris
00 33 6 62 08 15 02 Cell phone Paris
www.redsystems.co.uk (under construction)
www.ib-group.com
Hello, all:
I plan on playing with my old Model 1this weekend so that I can get the
floppy drive working. Since I suffer from random bit-rot, can someone tell
me which disk operating system shipped with the drive option? My system is a
48k Level II with the Percom controller and drive. I don't have any disks
for it any more, but I was going to use the TRS81 emulator to create new
disks for it.
Thanks.
Rich
Rich Cini
Collector of classic computers
Build Master for the Altair32 Emulation Project
Web site: http://highgate.comm.sfu.ca/~rcini/classiccmp/
/************************************************************/
> -----Original Message-----
> From: Andy Berg [mailto:groovelists@yahoo.com]
> The poor ST251 looks like it might be done in for...
> Originally, it just clicked once when power was
> applied + didn't spin up. Was able to get it to spin
> up by lubing the bearings, but I think it has many
I wonder how long it would last if you actually had
to open the thing to lube the bearings anyway.. :)
> other issues. Fails a TEST 71 (disk verification
> test). Attempting to BOOT using DUA0 as default has it
You could try formatting it, then verifying. I'm not
sure if that will make a difference. The format
command is some other test (72?) which I don't
really remember the number for...
> making a quiet buzzing noise for a few seconds...
> then, tries to boot from ESA0, gives a ?54 RETRY,
> tries ESA0 again, etc... Haven't quite gotten around
Well, that part is normal. :) If the first device
doesn't work, it will switch through the devices in
a certain order until it gets to ESA0 at the end.
> to setting up a network for it. (Could also be doing
> something wrong, too - never had a chance to work with
> any VAXen prior to this.)
Sounds ok. Incidentally, it really will take just about
any "MFM" drive you can stuff in there. You'll just
need to re-format it.
> Thanks again for everything - you both made things
> really easy. :)
No problem. 2000s are really nice little machines.
I'm glad to seep people (besides me) still using
them.
Chris
Christopher Smith, Perl Developer
Amdocs - Champaign, IL
/usr/bin/perl -e '
print((~"\x95\xc4\xe3"^"Just Another Perl Hacker.")."\x08!\n");
'
LK201 specification:
ftp://ftp.dbit.com/pub/pdp8/doc/lk200fs.doc
This is a plain text file, not an MS Word document!
The specs are also in the VT220 Technical Manual. I've not checked to
see whether they are identical.
- Paul
From: Doc <doc(a)mdrconsult.com>
>just show a dead drive as "offline"?
> I put the original RD54 back in as drive 0 and no longer get the RQDXA
>errors from the diags, but both drives 1&2, RD53s, are showing as
>offline RD51s. What's up with that?
>
NOTE: DEC jumpers all RDxxs the same regardless of how many are on
the controller {they are cable selected}. If memory is accurate All RDxx
should be jumpered for #3. REPEAT ALL DRIVES ARE JUMPERED
THE SAME even drive address.
I assume the controller is RQDX2 or 3 and the box is BA123 with the 4
drive interface card (M9xxx). FYI: if there is a RX50 on that controller
then ONLY TWO RDxx drives can be used as an RX50 uses two drive
numbers. If you want three RDxx drives and a floppy then use a RX33
(TEAC FD55GFV, with correct jumpers) OR use two RQDX controllers
and associated breakout cards.
Watch for upside down cables and or bad cables.
Allison
> From: Hans Franke <Hans.Franke(a)mch20.sbs.de>
[Tony Duell wrote]
> > And the ZX81 BASIC is so unpleasant (single-key entry -- YUK!)
>
> Hey, I liked it!
Thank you, Hans. I knew I couldn't be the only one ;>)
> > Therefore it's probably as easy to start with a bare CPU chip...
>
> Maybe, but then you have to make a board, and at least a ZX
> compatible edge connector for all the great perhipherals ...
> So after all, using a ZX81 is just a cheap way to get exactly
> this.
Exactly. For five or ten US dollars (or free, mostly) you get an easily
hacked micro with all the lines available on the expansion connector and a
decent built-in BASIC if you need it. Plus 8KB of available address space
in the 8-16KB region which is perfectly suited to add-ins such as NVRAM or,
my favorite, a disk operating system in ROM.
Glen
0/0
Available for postage ($3.50 in the US). Condition unknown.
Hayes Micromodem II, which Google indicates is for an Apple II. Looks good.
No cable, just the card.
Applied Engineering Ramkeeper, which Google indicates is for a IIgs. Many
of the chips are a bit scratched -- it's obviously been in a pile of boards
for a while. This is supposed to be a battery-backed RAM board, but there's
no RAM or battery. There's a couple places where it looks like things used
to be glued to the board, and other possible damage. Probably not useful
except as a source of chips (has ROM revision RK 1.7, and other chips
labelled RK1A.N, RK2A.N, and RK3A.N).
--James B.
> -----Original Message-----
> From: Andy Berg [mailto:groovelists@yahoo.com]
> I've had a Vaxstation 2000 sitting around here for a
> bit, but I've just gotten around to tinkering with it.
> Alas, the poor fellow seems to have an ill hard drive.
Common problem, I think.
> I've managed to get the case open, but... well, this
> is rather embarassing... I can't quite seem to figure
> out how to get the drive itself out.
It's not easy. You'll need to remove the screws
in the top of the mainboard, I think. The
mainboard should then "lift out" -- probably
front first, but it's been a while. Make sure
that you don't bend the board. The connectors
that stick out under the lip in the back of the
system tend to catch on things.
It will be connected to at least a power connector
and a cable for the disks. Disconnect those.
Remember to note their orientation.
The Ethernet board, and any ram expanders will be
snapped onto the main board with little plastic
parts. They'll lift right out with it.
All of this is from distant (a year or so) memory,
so make sure I'm telling you the right thing before
you try it ;)
Now, the floppy and hard disk will be attached to
the same set of metal plates, and those plates,
IIRC, are attached to the rails that hold the
drives in place. I think you need to detach the
metal drive-plates from the rails, and then take
the hard disk off once you have the pair of disks
dislodged from the inside of the machine.
IIRC, the power supply is "short" -- maybe half
the height of the system cabinet -- so you should
be able to get access to any screws you need to
take out to loosen the above-mentioned metal plates.
> I don't believe it is open at the moment, but I think
> the layout inside is something like this :
> ____________________
> ----Motherboard-----
> --------------------
> PS | Floppy
> | RD32 HD
> ____________________
Kind of like that... :)
> The drive is held in by at least a screw or two on the
> right-hand side - I can remove those, but it is still
> held in by another seeming inaccessible screw and / or
> the cabling hooked up to the back of it.
Again, take the mainboard out, and you'll have to
remove both drives at once. :)
Chris
Christopher Smith, Perl Developer
Amdocs - Champaign, IL
/usr/bin/perl -e '
print((~"\x95\xc4\xe3"^"Just Another Perl Hacker.")."\x08!\n");
'
BG micro ( www.bgmicro.com ) still has 765,1771,1791,1793,1795,1797,2793
and 2797 floppy disc controllers if your old machine need a new floppy
disk chip. Looking at the same page they also have some old memory chips
like 16kx1 drams and 1kx1 static ram.
--
Ben Franchuk - Dawn * 12/24 bit cpu *
www.jetnet.ab.ca/users/bfranchuk/index.html
>Maybe it's related to the age of the keyboards. All the ones I've worked
>on originally came with VT220s or Bows/Pros/DECmates. I would guess the
>6805 version came out later.
I'm going to get this wrong here :-) but
isn't the LK201 used on the VT220 (and
later terminals) but the LK201 used on the
Rainbow? (I guess that the Pro 380 et al.
use the same keyboard as the Rainbow,
but I don't have any of those).
The LK201 specs are in one of the appandices
that come with the VAXstation 3200 manuals
(possibly in the separate VCB02 tech manual).
The Rainbow tech manual almost certainly
includes the LK250 spec (I have that scanned
too, but it's not available anywhere yet, I think).
If someone is looking to develop a PIC LK2xx
implementation, it would be nice to handle
both variants.
Antonio
> From: Ethan Dicks <erd_6502(a)yahoo.com>
> I never liked single-key-entry BASIC because you have to "know"
> what mysterious character they chose for keywords with the same
> initial letter. I mean is "S" STEP? STOP? How about "O"? ON?
> OPEN?
Sure -- that's why the Sinclair-based systems had the keywords printed on
the keys. Those of us who use alternate keyboards either have
screen-printed keys, a chart glued to the keyboard, or, after 20 years of
squeezing the last living cpu stroke out of these things, have simply
learned them. To me, it's still easier than typing the whole keyword.
An additional benefit is that it made the built-in syntax-checker possible.
You simply *can't* enter a syntactically incorrect line of BASIC into a
program using a ZX81.
Of course, serious ZX81 programmers use very little BASIC, same as with any
other machine. I'm NOT a proponent of BASIC on *any* platform, but ZX81
BASIC sure did get a lot of kids interested in computers.
Ever wonder why the UK leads the world in game programming? Answer: ZX81
and the Spectrum. These machines taught kids to make the most of the
hardware.
The kids I know today think they're hot tuna because they can "build web
pages." They've never heard of machine code and haven't a clue what an
assembler or compiler is.
20 years ago, the inquisitive kids said "BASIC sucks, what's the next
level?"
Know what I mean?
Glen
0/0