In message <Pine.SUN.3.91.970714101129.4470B-100000(a)crl5.crl.com> classiccmp(a)u.washington.edu writes:
>
> I saw an interesting relic in the thrift store the other day...and IBM PC
> "Expansion Chassis" (I believe that's what it was called). It was
> basically an IBM PC case with two full height hard drives instead of
> floppy drives. It's model number was 5161 (if I recall correctly).
> Didn't bother with it, even though it is kinda unique.
Ah yes, the 5161...
It is/was a device for adding 6 more slots to a PC, PC/XT or Portable-PC
(basically any of the 8-bit bus system). The 5161 itself was a PC/XT cabinet
with an 8-slot passive backplane (OK, there was a 14.? MHz oscillator in
there) and a standard PSU. There were a pair of cards (the 'extender' and the
'receiver') and a 62 pin cable that linked them. You put the extender into one
slot of the 'host' system, the 'receiver' into the passive backplane, and linked
them together. You could put I/O or memory cards (although not graphics cards
AFAIK) into the remaining slots of the 5161.
One problem with buying one of these second-hand is that the extender card (and
often the cable) is almost always missing - it's been left in the host. And that
card is difficult to find.
Schematics, etc are in Volume one of the Options and Adapters TechRef.
> Sam
-tony
At 11:45 PM 7/13/97 GMT, you wrote:
>GPIB = General-Purpose Interface Bus. Aka IEEE-488, and very similar to
>HPIB (= Hewlett-Packard Interface bus). HP were the company who designed it,
>but it turns up on all sorts of machines.
It's *the* bus used for disk drives, tape drives, printers, etc. for classic
(and, to a lesser extent, spectrum) HP 3000 minicomputers. Trust me, I've
got a basement full of 'em. (Bought my 3000 to use -- it's what I do for a
living.)
Also, if I'm not mistaken, the Commodore PET's used IEEE-488 for disk
drives, as well as lab stuff. I'm pretty sure I've got an IEEE-488
interface for the VIC-20 around somewhere.
--------------------------------------------------------------------- O-
Uncle Roger "There is pleasure pure in being mad
sinasohn(a)crl.com that none but madmen know."
Roger Louis Sinasohn & Associates
San Francisco, California http://www.crl.com/~sinasohn/
At 02:11 PM 7/13/97 -0800, you wrote:
>up, I got a Commodore 1702 monitor, and a couple 1541 drives. I've got the
>drive attached, and the monitor hooked up via a RF cable (I guess that's
>what it's called) through the front connection (This works for the Amiga
The c1702 is a very nice monitor. On the back is (IIRC) RGB connectors (or
composite? or something like that) but on the front is standard video and
audio in. As in, TV. If you hook up a VCR (with a tuner or cable
connection), you've got yourself a very nice TV.
A few years back, I set up a VCR and 1702 combo on one of those hospital
tables for my dad and he spent his time there watching movies (actually,
videos of a local teen theatre group --
<http://www.crl.com/~sinasohn/yptmtc/>). It makes for a very compact setup.
I would love to find one or two for <$10 and use them for exactly that.
--------------------------------------------------------------------- O-
Uncle Roger "There is pleasure pure in being mad
sinasohn(a)crl.com that none but madmen know."
Roger Louis Sinasohn & Associates
San Francisco, California http://www.crl.com/~sinasohn/
At 10:34 PM 7/11/97 +0000, you wrote:
>Is the display looks like it was using same LED display, "hair thin"
>segments under the plastic lens?
That would fit with what I remember. If all the lights were lit up, it
would look a lot like this:
- - - - - - - - - - - -
- - - - - - - - - - - -
- - - - - - - - - - - -
- - - - - - - - - - - -
- - - - - - - - - - - -
Only a little closer, vertically. The lights really looked like little red
hyphens.
--------------------------------------------------------------------- O-
Uncle Roger "There is pleasure pure in being mad
sinasohn(a)crl.com that none but madmen know."
Roger Louis Sinasohn & Associates
San Francisco, California http://www.crl.com/~sinasohn/
At 09:24 PM 7/11/97 -0500, you wrote:
>In regard to your post about the old hand held football game... I
[...]
>believe it was the SAME one that was manufactured by Coleco, or a similar
I think the one I had was a Coleco or somebody like that, but I could be wrong.
>around. Just the other day, I was in a thrift store in Nebraska City, NE
>and they had a pile of 'old' handhelds. I didn't have time to look through
>it close, though.... but I'm darn sure they did have a football game or
>two though. I'll go back and check it out for you, though. Oh, while were
That would be fantastic! I don't know what they sell for now, but I can't
imagine it would be bank breaking. Thanks!
>on the subject of old football games.... how about those darned magnetic
>full-field table football games they used to make?? Do they still exist?
I know what you mean, but I never had one. I doubt they still make them;
Everyone plays Joe Blow Football '97 on the Super Nintendo nowadays. (My
girlfriend's brother does anyway.) I can't even say I've seen one recently.
The Musee Mechanique at the Cliff House here in San Francisco probably has
one (and other, even older games too!) If you're ever in the City and like
that sort of thing, definitely stop in. They have modern games as well as
old stuff.
--------------------------------------------------------------------- O-
Uncle Roger "There is pleasure pure in being mad
sinasohn(a)crl.com that none but madmen know."
Roger Louis Sinasohn & Associates
San Francisco, California http://www.crl.com/~sinasohn/
Hello, all:
I'm trying to track-down a mod that Tandy on the Expansion Interface. On one
of my early EIs (SN# 000352), there was a 6-pin DIN modification, which
someone at one time told me was to correct some erratic signal problems.
So, I called Tandy and ordered the EI service manual, but it only applies to
the "new" PCB version (units with SNs 035000 or greater). Does anyone have the
schematics to the original one and can check pin functions?? Internally, the
board is labelled "1700077-C", does not have the green conformal coating, and
has the RAM chips right next to the power supply section.
Mod 1 is on IC Z17 (LS157), pins 1 and 8 (GND)
Mod 2 is on IC Z24 (LS32), pins 4 and 7 (GND)
Mod 3 is on IC Z22 (LS367), pins 12 and 8 (GND)
Matching the old ICs and pin numbers to the new schematics produces the
following:
Mod 1 is for the MMUX line, Mod 2 is for WR* and Mod 3 is for INT*
Can anyone verify this?
------------------------
Rich Cini/WUGNET
- ClubWin Charter Member (6)
- MCPS Windows 95/Networking
Message text written by Sam:
>I figure total shipping costs will be $4 for a single unit, $5 for a
couple, etc. Not sure exactly.
I realize the shipping costs may not be what some people bargained for so
at this point I would ask that if you want to or need to back out, please
do it soon.
I am going to try and negotiate a lump sum for the total units that will
hopefully bring the cost per unit to $7. That's what I'm shooting for.<
I don't know why anyone in their right mind would back out. You said
originally $10 per unit, and if the above figures work out, that would end
up $12 for a single unit delivered; not bad at all. In fact, for the folks
who asked for two, the above figures would product $19 delivered, CHEAPER
than you originally said.
Still, you're left doing an awful lot of packaging, etc. You might at
least want to build in $1-$2 a unit "profit" just to compensate for all
your time and effort. On 400 units, that would at least get you a few nice
dinners! Please accept our thanks for all your work on this.
Gil Parrish
107765.1161(a)compuserve.com
In a message dated 97-07-14 11:38:57 EDT, you write:
actually, i've heard that novation applecat modem was desired by the
hacker/phone phreak crowd because of it's abilities. i think it could emulate
the dialing tones and do dtmf to make free phone calls. anyone have any
correct or detailed info about this?
<< >> I'm not doing it on purpose, but I find myself unable to let go of this
>> Novation CAT modem that I dredged up a few years ago...
>
>Hmm; I just picked one of these up with an incomplete Apple ][plus system
>that I haven't yet had time to muck with, short of cleaning it up a bit.
>What's special about it?
Absolutely nothing. It's a standard 300 baud modem.
Roger Ivie
ivie(a)cc.usu.edu
>>
david
->I'm pretty sure that these aren't host adapters; I think they're
->controllers in the traditional SCSI sense. (i.e. you sandwich
->them between the SCSI bus and a MFM or ESDI drive.)
->
->> One is a WD-1000-05, one's a WD-1000-50, and a WD-1000-TB1. If
->> anyone has docs for these (or can tell me where to get them) I would
->> really appreciate it.
Tim,
They may be host adaptors depending on the suffix they can be host or
SASI (pre-scsi).
I know the 1002-05/hdo is host.
Allison
->Here's a real classic for ya. I'd have killed for a system like
->this one, but married life, no room, no time, blah blah blah . . .
->Anyone have a use for a
->Motorola 6800 Exorcisor
->System? This is a real
I have the granmother to that the 6800D1 board. If it has a 6809 it's
not as old as one with a 6800!
Delopment systems are real collectable as they are fewer in numbers.
Allison
