> I
> have been told that the DEQNAs had problems and would lock up or
> experience
> other reliability issues. DEQNAs are not supported after about VMS
> 5.4/5.5,
> which is why I need a DELQA. I am not sure what the minimum VMS
version
> is
> for DELQA though.
DEQNAs never worked right, even after 12 revisions. That's why they
were dumped and the LQA was created. For moderate loads a QNA should be
ok, though. The big problem was that they weren't good enough for Local
Area VAXcluster use, which was a big thing in those days. I don't think
DECnet was thrilled with them either but DECnet was more tolerant of
misbehavior.
I don't remember DEQNAs being dumped by the PDP11 operating systems.
paul
"Paul Koning" <Paul_Koning at Dell.com> wrote:
>> > I
>> > have been told that the DEQNAs had problems and would lock up or
>> > experience
>> > other reliability issues. DEQNAs are not supported after about VMS
>> > 5.4/5.5,
>> > which is why I need a DELQA. I am not sure what the minimum VMS
> version
>> > is
>> > for DELQA though.
>
> DEQNAs never worked right, even after 12 revisions. That's why they
> were dumped and the LQA was created. For moderate loads a QNA should be
> ok, though. The big problem was that they weren't good enough for Local
> Area VAXcluster use, which was a big thing in those days. I don't think
> DECnet was thrilled with them either but DECnet was more tolerant of
> misbehavior.
>
> I don't remember DEQNAs being dumped by the PDP11 operating systems.
That's because they haven't been. :-)
I actually have an interesting reverse behaviour, where I can get a
DELQA to freeze on my 11/93 running RSX, while a DEQNA will continue
working fine.
(I do suspect it is because the extra care DECnet takes to keep a QNA
ticking which saves me, but anyway... Interesting...)
And to answer the OP: the cab kits are the same, modulo the letters
under the connector.
Johnny
--
Johnny Billquist || "I'm on a bus
|| on a psychedelic trip
email: bqt at softjar.se || Reading murder books
pdp is alive! || tryin' to stay hip" - B. Idol
There's a fellow in town selling a used Xerox 2825 laser printer with
duplexer for $100. I'm interested because it will do 11x17.
Does anyone have any experience with one of these? Worth looking at
or run away?
Thanks,
Chuck
I purchased the Godbout 85/88 card, seems to be working fine so far,
although
not at 5Mhz. I must have a memory card that can't handle the blazing 5 Mhz
access.
I am looking for a PLM86 compiler. I have the PLM80 compiler and
linker/locator
(if anyone needs this, please let me know) but am struggling finding the
PLM86
compiler and associated linker/locator. I am currently loading code into my
system via a HEX loader I wrote and sending the hex file in via the serial
port
>from my Mac Pro (yes, a $5000 quad-processor computer serving as a dumb
terminal
to my 2Mhx 8080).
I want to be able to write PLM86 code and do the same for the 8088 on the
GodBout card.
Anyone know where I can find PLM86?
Jeff Erwin
Hi gang,
I ask every now and then here if anybody has run across one of these machines or might know sombody willing to part with one.
I had one once, new, and want to go back to those days.
If you help me find one, I will cross your palm with cash to feed YOUR vintage computer habit.
Thanks,
Randy
_________________________________________________________________
Quick access to your favorite MSN content and Windows Live with Internet Explorer 8.
http://ie8.msn.com/microsoft/internet-explorer-8/en-us/ie8.aspx?ocid=B037MS…
Anyone have any info on rebuilding the head for a regular 9-pin dot
matrix printer? I have an open pin-5 coil on mine, and I would like to
take it apart to see if I can repair/replace the coil, BUT I am a bit
concerned about taking these things apart. Springs flying off, etc.
Looking on-line does not turn up anything (so far) on dismantling these
suckers. If necessary I will document it myself, but was hoping the info
was already out there!
The head I have is an Anadex DPH-100, and the only place on-line that
shows them no longer repairs 'em! Nor did the tech I spoke to recall any
details...
John :-#)#
--
John's Jukes Ltd. 2343 Main St., Vancouver, BC, Canada V5T 3C9
Call (604)872-5757 or Fax 872-2010 (Pinballs, Jukes, VideoGames)
www.flippers.com
"Old pinballers never die, they just flip out"
This is quite off-topic, but we have such a knowledgeable group here I
thought I'd ask:
I just bought a pair of MyVu Shades 301, a head mounted display
system. However, I don't see the RCA connectors I was expecting, but
there *is* a cable that says it goes to "standard DVD players". It has
a green stereo 1/8" plug, which I assume is audio, and then a yellow
two-conductor plug. I'm guessing this last one is composite video, but
I'm just not sure. Have any of you seen this? I figure if I can't find
an adapter at Radio Shack I can probably whip one up in a few minutes,
but I wanted to get your opinions before I go messing around.
John Floren
--
"I've tried programming Ruby on Rails, following TechCrunch in my RSS
reader, and drinking absinthe. It doesn't work. I'm going back to C,
Hunter S. Thompson, and cheap whiskey." -- Ted Dziuba
My PDP11/40 had a high speed paper tape reader/punch when it was new
(PC04 I think). I have the hardware, but not the Unibus card. I think it
failed and was replace with a Facit punch with a serial interface.
So, does anybody have a M7810 they want to get rid of? That is the PC11
interface. I don't know if that is a quad SPC board or a dual that needs
a M105 address board and an M7821 interrupt board. I think it needs the
extra boards.
Any lead or information is welcome...
-chuck
