--- Mike <dogas(a)leading.net> wrote:
> >BTW, that 4x6 connector is Heathkit propietary.
By this I meant that only Heathkit used it for a serial connector. It's
a standard Molex of some type, AFAIK.
> > ...I'd pull the H-11-5 and go with a DLV11-J...
> How are they different?
The DLV11-J uses "standard" DEC .1" spacing, 2x5 Berg connectors. There
are also wiring harnesses and backpanels to convert the Berg ends to a
panel with 4 x DB-25 w/standard DEC wiring (Male, DTE). Oh, yeah... the
DLV11-J is a quad serial card at standard addresses (so you can hang a TU-58
on it and RT-11 will know where to look), the H-11-5 is a single console
port, like some other DLV11 card (not the "J", "E" perhaps?)
> Will it boot into a monitor without the h-27 attached and is there a command
> reference somewhere around?
That depends entirely on your CPU/boot rom combo. My 11/23+ CPU (KDF11-AB)
has an interactive boot program that lets me test stuff, dump the bus and
boot devices by name (DY0, DL1, etc.) The older ROMs for the 11/23+ aren't
as fancy - boot prompt (Y/N) and optionally the device mnemonic. No diags,
no dialog.
-ethan
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--- "Zane H. Healy" <healyzh(a)aracnet.com> wrote:
> > 1. Digital M7264
> PDP-11/03 processor
> > 2. H-11-5 Serial i/o
> > 3. H27 Floppy i/o
> > 4. H-11-5 Serial i/o
> > 5. M8044 CB
> 16 KW RAM
> > 6. M9400 YB
> 120-ohm Terminator
> > 7. WHA-11-16 16k x 16k Memory
> >
> >First question, does it matter how these boards are plugged into the
> >backplane?
To a certain extent - the CPU should be at one end of the Qbus, the M9400
at the other. Other stuff is not so critical.
> If so, where do they go? What are boards #6 and #7? The
The M9400 is at least a Qbus terminator if not a Qbus terminator and boot
card... I forget what the "YB" designator means, and my H-11 is not in
front of me (it has a KDF-11 "PDP-11/23+" CPU card in there, anyway).
The WHA-11-16 is some third-party card with which I am not familiar.
> Well, I would think that 6 & 7 are reversed, but I'm not familair with the
> H-11, so there might be soemthing wierd going on there.
It is wierd - the backplane is upsidedown - the cards go in with the solder
side up. It threw me for a loop the first time, too. Fortunately, I didn't
"fix" the problem and power up.
BTW, that 4x6 connector is Heathkit propietary. I have never seen one
anywhere else except hanging up on the wall of the local electronics
warehouse about 15 years ago back when that kind of connector was more
common. It's a type of Molex connector.
If you have _any_ DEC async boards, I'd pull the H-11-5 and go with a DLV11-J
or the like. I have an H-11-5. It's *not* in the H-11. It's on the shelf.
I do not have any docs, though, before you ask. I am stymied with the H-27
interface card. I have tested all the TTL ICs, but this thing still locks
up the Qbus when it's plugged into the grant chain with no gaps. With gaps,
it begins to read the floppy at boot time, but as soon as the boot code
turns on interrupts, because the interface is in the wrong place, the system
hangs, waiting for the interrupt that never comes.
I've been working on other systems recently - a pdp-8/e and pdp-8/L,
specifically.
-ethan
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From: Ethan Dicks <ethan_dicks(a)yahoo.com>
>...
>It is wierd - the backplane is upsidedown - the cards go in with the solder
>side up. It threw me for a loop the first time, too. Fortunately, I
didn't
>"fix" the problem and power up.
A shared experience.
>BTW, that 4x6 connector is Heathkit propietary. I have never seen one
>anywhere else except hanging up on the wall of the local electronics
>warehouse about 15 years ago back when that kind of connector was more
>common. It's a type of Molex connector.
I guessed that one too. ;)
>If you have _any_ DEC async boards, I'd pull the H-11-5 and go with a
DLV11-J
>or the like. I have an H-11-5. It's *not* in the H-11. It's on the
shelf.
How are they different?
>I do not have any docs, though, before you ask. I am stymied with the H-27
>interface card. I have tested all the TTL ICs, but this thing still locks
>up the Qbus when it's plugged into the grant chain with no gaps. With
gaps,
>it begins to read the floppy at boot time, but as soon as the boot code
>turns on interrupts, because the interface is in the wrong place, the
system
>hangs, waiting for the interrupt that never comes.
Will it boot into a monitor without the h-27 attached and is there a command
reference somewhere around?
>
>=====
>Infinet has been sold. The domain is going away in February.
>Please send all replies to
>
> erd(a)iname.com
>__________________________________________________
>Do You Yahoo!?
>Bid and sell for free at http://auctions.yahoo.com
>
I was just going through the attic and found an old 3B2/300 shell. The
only thing left is the bottom sheet metal and the power supply.
If anyone wants it, I'm asking 1.2 * shipping.
-ethan
=====
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erd(a)iname.com
__________________________________________________
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I've just read your mails about the Xerox's keyboard/mouse
interface, and it seems I've reached the same conclusions
(cool!). Now, I'm still hacking a simple 422-232 interface, using the
HandyBoard's MAX232 and some TTL logic. Although, I've been able to
receive ASCII text from the bus. Can't send useful data still. (I can
post the details of my connections if anyone interested). When the
workstation boots, it sends a burst of data through the RS422 bus (in
hex):
01 55 aa 00 01 02 03 ... fe ff 00 01 02 03 ... fe ff
But I still can't get a repeatable behavior, I mean, when I press some
keys, the xerox seems to react, but if I press the same keys again, it
does not. I suspect It has to do with an improper 422-232 level
conversion. I'm going to try again tonight.
Cheers,
--
*** Rodrigo Martins de Matos Ventura <yoda(a)isr.ist.utl.pt>
*** Web page: http://www.isr.ist.utl.pt/~yoda
*** Teaching Assistant and MSc Student at ISR:
*** Instituto de Sistemas e Robotica, Polo de Lisboa
*** Instituto Superior Tecnico, Lisboa, PORTUGAL
*** PGP fingerprint = 0119 AD13 9EEE 264A 3F10 31D3 89B3 C6C4 60C6 4585
What can I say, I got tired of 3+ different lists for modules not covered
in the "Field Guide", and have merged them into one list. I've also added
some flip-chips to the list that weren't in any of the other three lists.
Currently it's primarily PDP-8 related, but I'm working on fixing that and
adding stuff from other PDP's (I'm not adding stuff in the "Field Guide").
The original three lists can be found at:
http://www.spiritone.com/~nabil/pdp8/modules.txthttp://www.spiritone.com/~nabil/pdp8/omni.txthttp://www.spiritone.com/~nabil/pdp8/sq.txt
The merged list with addtions can be found at:
ftp://zane.brouhaha.com/pub/ModuleList.txt
If anyone has any additions or corrections I'll add them in. If anyone has
any suggestions I'd be interested in those also.
Zane
| Zane H. Healy | UNIX Systems Adminstrator |
| healyzh(a)aracnet.com (primary) | Linux Enthusiast |
| healyzh(a)holonet.net (alternate) | Classic Computer Collector |
+----------------------------------+----------------------------+
| Empire of the Petal Throne and Traveller Role Playing, |
| and Zane's Computer Museum. |
| http://www.aracnet.com/~healyzh/ |
I had a color APC set up for AutoCAD 1.1 at one time. One of several that
passed through my hands. They are a very nice machines, the color especially.
There is a NEC hard drive (5 1/4" external) that worked with it. I had a hard
drive and APC documentation until my warehouse cleanout. I don't think they
were salvaged.
If there is any software (CPM-86 and/or MS-DOS 2.11) for it the APC is a good
candidate for a collection.
Paxton
Hi all,
I've been fortunate lately. Recent system arrivals include a Motorola
Exorcisor&Disk and MEK 6800d2, an OSI Challenger iii and replacement power
supply, an OSI Challenger 500 with a chunky doc set, a MITS 680, a KIM-4/hb
tvt-6/etc...,and a Heathkit H-11/H-27.
Frankly, I'm overwhelmed, but enjoying it.
It's hard to find all the necessary time each of these machines are
screaming for between all my other grand schemes but I manage. I've been
pretty quite lately but lurking when I get a chance and as usual have
enjoyed it all.
I know there's alot on the h-11 in the archives and I'll hit them too but I
know zilch about it right now. The cards in the tilt out qbus(?) are:
1. Digital M7264
2. H-11-5 Serial i/o
3. H27 Floppy i/o
4. H-11-5 Serial i/o
5. M8044 CB
6. M9400 YB
7. WHA-11-16 16k x 16k Memory
First question, does it matter how these boards are plugged into the
backplane? If so, where do they go? What are boards #6 and #7? The
WHA-11-16 had a memory chip that was partially popped out and the right
drive latch on the H-27 is cracked but repariable I think. Next question,
anyone got a recommendation on where I can find that rectangular(4x6 pin)
serial connector? And lastly, dc on, dc off... ???
I'd appreciate copys of any docs for this thing anyone is willing to copy
(and software too...)
My goal is to get rt(h)-11 and some decus? software (a c compiler) software
humming.
Thanks for any help
- Mike: dogas(a)leading.net
> P.S.: When designing a new cooler element/radiator, keep in mind that
> silver is a way better thermal conductor than Al or Cu.
Not quite accurate, Hans.
Silver and Copper are way better thermal conductors than Alumin(i)um, but
there's not much to choose between the two of them.
I used to work on the TI 99/10 but I don't remember much about them. I do
remember that it was nearly impossible to fix the circuit cards. They were
multi-layer and used very fine wires for the circuit traces.
Joe
At 08:30 AM 11/18/99 -0500, you wrote:
>I have a TI 990/10 mini as well as a handbook for the SYSTEM family of
>peripherals for TI 990 systems.
>
>Sincerely
>Larry Truthan
>
>-----Original Message-----
>From: John R. Keys Jr. [mailto:jrkeys@concentric.net]
>Sent: Wednesday, November 17, 1999 7:37 PM
>To: Discussion re-collecting of classic computers
>Subject: Re: TI99 another issue.
>
>
>There web sites showing both machines and they are real, but hard to find.
>----- Original Message -----
>From: Hans Franke <Hans.Franke(a)mch20.sbs.de>
>To: Discussion re-collecting of classic computers
><classiccmp(a)u.washington.edu>
>Sent: Wednesday, November 17, 1999 9:30 AM
>Subject: TI99 another issue.
>
>
>> Does anybody here on the list know about the TI 99/2 or /8 models ?
>> Or own one ? I just remember photographs from the early 80s.
>>
>> Gruss
>> H.
>>
>> --
>> Stimm gegen SPAM: http://www.politik-digital.de/spam/de/
>> Vote against SPAM: http://www.politik-digital.de/spam/en/
>> Votez contre le SPAM: http://www.politik-digital.de/spam/fr/
>> Ich denke, also bin ich, also gut
>> HRK
>>
>
