>> Is it possible to make a bootable floppy for a VAXStation 2000 or is the
>> system too large for the disk?
>
>Of what? VMS? the answer is yes, sorta. Standalone backup is one case
>where it fits on a RX33 (1.2mb 5.25).
Maybe 10 years ago it fit on a single RX33. For a recent version
of VMS it is more like 3 RX33's.
Tim.
> Last time I said I beat up some PCs, many of you were disturbed. So this
> time, I'm warning you before I do it. There are 8 DEC LPv+ 425dx and
> 433dx machines. They are all 486 DX with RAM from 0 to 16 MB, some have
> hard drives around 200 MB, some should have OS/2. They are being thrown
> away because they have miscellaneous problems, and we haven't been able
> to fix them. I haven't tried, so I don't know what the problems are.
> Anyway, first come, first served. Price is 1.2 * shipping.
Memories from 0 to 16MB? If there are any 4MB, 30pin parity simms in that lot,
I'll happily pay 120% of shipping for a set of four.
Philip.
People looking for MMJ connectors / adapters contact me off list. I have a
fair stock of adapters and the crimpers with a few ends.
Dan
>> Ok, I give up, where the heck does one find the pin-out for the weird
>> not-quite-an-RJ-45 connector that connects the console to the VAX? I've
got
>> a cable that has the weird connetor on it (both ends :-() which no doubt
>> plugs right into a VTxxx VAX Console Terminal but I'm more interested in
>> something like a serial port of a PC pretending its a VTxxx console
>> terminal. I figure I'll cut this cable in half, crimp on an RJ45 that I
can
>> plug into one of those DB-9 hood things.
>>
>>
>> --Chuck
>>
>>
>>
>
>I've got a cable with an MMJ on one end and a broken MMJ on the other
>and I'm looking for a serial connector with MMJ's on both.
>
>Wanna swap 'em?
>
>Bill
>
>---
> bpechter@shell.monmouth.com|pechter@pechter.dyndns.org
> Three things never anger: First, the one who runs your DEC,
> The one who does Field Service and the one who signs your check.
>
Does it smell sorta like fish?
That's what the Tandy 1400 that I have smelled like when the HD controller
blew.
Although, that thing always fishy.... :)
--
-Jason Willgruber
(roblwill(a)usaor.net)
ICQ#: 1730318
<http://members.tripod.com/general_1>
-----Original Message-----
From: Chuck McManis <cmcmanis(a)mcmanis.com>
To: Discussion re-collecting of classic computers
<classiccmp(a)u.washington.edu>
Date: Wednesday, May 05, 1999 8:33 PM
Subject: Re: Whew!
.
>
>Yup, it could easily be the remains of a Tantalum cap. Weirdest smell. I
>can't believe that the rest of the board could survive something like this
>but hey it isn't like the thing is any good as a paper weight! Now to pull
>one of the others and figure out what value cap used to live there...
>
>--Chuck
>
>
In einer eMail vom 05.05.99 21:02:46, schreibt Tony:
<<
> That is EXACTLY what I need - the connector has the letters above
imprinted,
> and the meaning of the signals I have from the DEC docs. This is precisely
the
> RK-11 Drive Bus.
It's _almost_ the RK11 bus. Not suprising since the Diablo/DRI model 30
was sold by DEC as the RK02/RK03 for a time. I've cabled one up to an
RK11-C, and it is, indeed, just a cable.
The problem is in the drive select lines. RK11-C's use 1-of-4 code (you
assert one of 4 lines, like on a floppy drive). RK11-D's use a 3 bit
binary selection code. RK05s can handle either (there's a signal on the
connector of an RK05 that is pulled low by an RK11-D to indicate this).
RK02's, etc can't.
That's why you'll need a couple of chips to do the interfacing.
-tony
>>
Hi Tony,
I am aware of that fact. It is of course a very simple decoder. Since I will
need to mate two different cables (one from the drive with the 42-pin
connector, and another one from the controller with the bus paddle) I will
have a little intermediate board anyway, where this can easily be put.
First of all, of course, I will need to verify that the Plessey interface is
in fact identical to the Diablo one; since the connector is the same, I am in
good hope.
Regards
John
>Ok, I give up, where the heck does one find the pin-out for the weird
>not-quite-an-RJ-45 connector that connects the console to the VAX? I've got
>a cable that has the weird connetor on it (both ends :-() which no doubt
>plugs right into a VTxxx VAX Console Terminal but I'm more interested in
>something like a serial port of a PC pretending its a VTxxx console
>terminal. I figure I'll cut this cable in half, crimp on an RJ45 that I can
>plug into one of those DB-9 hood things.
The "weird connector" (DEC MMJ=Modified Modular Jack) is widely
available. Perhaps the easiest mail-order source, should you not have
any decent local electronics shops, is Digi-Key ( www.digikey.com ).
Anyone in or near Philadelphia want a free PDP-11/34A?
If so, check this out...
-=-=- <break> -=-=-
On Wed, 05 May 1999 19:41:05 GMT, in alt.sys.pdp11 you wrote:
>>From: moorem(a)bucks.edu
>>Newsgroups: alt.sys.pdp11
>>Subject: FREE!!! PDP-11/34A Complete System
>>Date: Wed, 05 May 1999 19:41:05 GMT
>>Organization: Deja News - The Leader in Internet Discussion
>>Lines: 10
>>Message-ID: <7gq6sh$49e$1(a)nnrp1.deja.com>
>>NNTP-Posting-Host: 192.112.54.10
>>X-Article-Creation-Date: Wed May 05 19:41:05 1999 GMT
>>X-Http-User-Agent: Mozilla/4.5 [en] (WinNT; I)
>>X-Http-Proxy: 1.0 x15.dejanews.com:80 (Squid/1.1.22) for client 192.112.54.10
>>Path: news1.jps.net!news.pbi.net!165.113.238.17!pln-w!extra.newsguy.com!lotsanews.com!nntp.primenet.com!news.maxwell.syr.edu!nntp2.dejanews.com!nnrp1.dejanews.com!not-for-mail
>>Xref: news1.jps.net alt.sys.pdp11:87
>>
>>Free for the taking: Complete PDP-11/34A system in 6 foot 22" rack.
>>Includes processor, memory, 2 RL02 disk drives, 1 RK05F disk drive
>>(a fixed disk seen as 2 RK05 removables). This unit has been sitting
>>in my barn for 10 years or so and is kind of dirty but it ran when I
>>parked it! Terms: All or nothing, you pick up. Location: Eastern PA
>>(central Bucks county, north of Phila.). Email: moorem(a)bucks.edu
>>Thanks!!!
>>
>>-----------== Posted via Deja News, The Discussion Network ==----------
>>http://www.dejanews.com/ Search, Read, Discuss, or Start Your Own
-=-=-=-=-=-=-=-=-
Bruce Lane, Owner and head honcho,
Blue Feather Technologies -- kyrrin (at) bluefeathertech [dot] com
Web: http://www.bluefeathertech.com
"...No matter how we may wish otherwise, our science can only describe an object,
event, or living thing in our own human terms. It cannot possibly define any of them..."
>Carefully store? I just nailed it through the center to hang it.
Ouch... that image really hurts...
Megan Gentry
Former RT-11 Developer
+--------------------------------+-------------------------------------+
| Megan Gentry, EMT/B, PP-ASEL | Internet (work): gentry!zk3.dec.com |
| Unix Support Engineering Group | (home): mbg!world.std.com |
| Compaq Computer Corporation | addresses need '@' in place of '!' |
| 110 Spitbrook Rd. ZK03-2/T43 | URL: http://world.std.com/~mbg/ |
| Nashua, NH 03062 | "pdp-11 programmer - some assembler |
| (603) 884 1055 | required." - mbg |
+--------------------------------+-------------------------------------+
