Hello. Well, I think the title says all about this message.
I have one Datasystems Design Board with one 26 (minus 1) pins.
It appears to have attached in the past one DSD440 or 880 unit.
I have no one of these actually, only one double DEC RX33
diskette unit. The questions are:
* Can I use this board with this diskette units ?
* What cables (or additional devices) I need ?
* How do the system recognize the diskette units (RX01, 02...) ?
I'll agree any information about these matters, thanks.
Greetings and best Regards from Spain
Sergio
I've send some requests to more places and providers.
You can be sure that I tell you the info when
I have it.
In fact, I'm interested not only cause of the RD52.
I have in mind try to connect TWO hard disks. I think
that could be possible to put two partitions (DL0
and DL1, by example) in the first disk, and DL3 and DL4
in the second.
Mmmm... this takes me to ask another question: How much DL
units (that is, RL0x devices) could be defined in one
PDP-11/23 PLUS system (my personal object of study) ?
This ask has a practical meaning: My system could has
in a near future installed one DILOG DQ614
and one RL02 controller with one RL02 disk unit attached.
And I has six RL02 cartridges that I like to use.
Greetings and Best Regards from Spain
Sergio
----- Mensaje Original -----
Remitente: Ethan Dicks <erd_6502(a)yahoo.com>
Fecha: Viernes, Agosto 3, 2001 3:10 am
Asunto: Re: DILOG DQ-614
>
> --- SP <spedraja(a)ono.com> wrote:
> > Hello. I have one question to somebody that managed
> > one DILOG DQ-614 in sometime. I've read the instructions
> > of the DQ696 and the proceddings to access the ROM
> > menu of this board appears to be applicable to the DQ614;
> > that is, when I type:
> >
> > @7775000G
> >
> > ... in the ODT prompt of one PDP-11/23 PLUS, appears
> > inmediately the '*' prompt.
> >
> > But, when I type 'FT', the prompt simply appears again.
> > No menu. Nothing. If you send a break to the system,
> > it makes appear again the @ prompt of the ODT.
> >
> > My interest about this is in access this phantom menu to
> > be capable of partitioning and formating one RD52 Hard Disk
> > that is connected to the board.
>
> I would love to hear more about this! I have had a DQ-614 for
> over 10 years and have never been able to use it. Recently,
> someone has posted the jumper settings on a web page, but I have
> not managed to get the formatting software from anywhere.
>
> I had no idea there might be a hidden formatting menu.
>
> More! More!
>
> -ethan
>
>
> __________________________________________________
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Hello again !
This is my final question about the boards that I have installed
actually in the PDP/11 23 PLUS. Is one Emulex UC04, with one
SCSI interface of 50 pin. I'd like to put it to work. Anybody
knows where could be obtained information about this board ?
Do somebody has aby practical experience putting it to work
in one system like mine or similar ? Is there some special
requeriment about disks to use ?
I'll agree any info about this matter, thanks.
Greetings and Best Regards from Spain.
Sergio
>Sure, but by 1976 the fastest production car being sold was a Lotus Europa
>John Player Special with if my memory isn't too defective had 118 HP from a
>1.6L engine. Zero to 60 MPH was a modest mid 6 second time, but I think it
>was just enough to edge out Z-28, which had lots more power, but twice
the weight.
The Z-28 went out of production in the very early 70's and was not
reintroduced until the 1978 model. So, there was no Z-28 in 1976. I'm not
sure but, I'd assume the corvette was the fastest Detroit built car at that
time.
I had previously owned a 69 Z-28 and when I heard that Chevy was going to
bring out a new one (78), I immediately ran to the dealership and ordered
one. I paid the whopping sum of $6200 for it. It was a decent car but, the
performance pales in comparision to the earlier ones.
I don't recall the numbers but the '78 probably had < 200 HP. I just bought
a new truck and It's got more HP than the '78 did. IIRC, the '69 was around
325 HP.
SteveRob
_________________________________________________________________
Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp
> Last night I was browsing the UNIBUS/PDP-11 field guide on the
> Web before I went to sleep. Then I dreamed of a VAX 11/785 with
> an UNIBUS extension cabinet full of cards. Included was a 3, 4,
> 5, or so card-set that together comprises a video interface. Hook
> up a composite monitor or RGB monitor and there you have it:
>
> A VAX 11/785 as a workstation!
>
> Write a driver for X11R6 for it and off we go. Has anybody ever
> seen those UNIBUS video monitor adapter sets? I suppose they
> were meant for PDP-11s, but I think running them with a VAX
> would be way cooler. Might not be possible, and certainly would
> involve some serious fiddling. But in a machine that has 10 or
> more cards for just the CPU, a 4 board video adapter would be
> the appropriate thing, wouldn't it? :-)
Read up on the VS100. It hooks up the the VAX 11/78x via a fiberoptic
cable. IIRC, this was the original development platform for X11. Warning,
there seems to be very little info available on the VS100.
Zane
On August 2, Jeffrey S. Sharp wrote:
> Would a hair dryer work, or would I need some heavy duty source of
> high-velocity air? Also, would one need to pull all the chips, clean them
> separately, and then reseat them once the board was dry?
>
> What about boards with core on them?
I wouldn't get core wet...nor would I hit it with an air compressor.
-Dave
--
Dave McGuire
Laurel, MD
Does anyone in the S.F. Bay area need or want a UMAX 600DPI/30bit
color/flat bed/SCSI interface scanner? Comes with scanner, software (PC Win
3.1/Win 95/Win NT), cables, terminator, and SCSI card (ISA). This was my
scanner of choice until I upgraded to a USB based scanner. I can make you a
good deal ($10 and its all yours, bwa-hahaha) or come by Saturday to our
garage sale and bargain us down :-)
--Chuck
On August 2, Bill Bradford wrote:
> > On boards that don't have to many nooks and crannies stick them in the
> > dish washer, but without soap, or very very little. The soap tends to
> > corrode bare metal. I then hang on to them securely and fling the water
> > off, as best I can, then stick them in front of a fan. If you have an
> > air compressor you can stick all board in the dishwasher, and then blow
> > them off.
>
> Did you just tell me to put CIRCUIT BOARDS in the *DISHWASHER*? Or
> do I still have a fever and am delirious.. ?
I've never been able to bring myself to do that myself, but I know
of several people who swear by that method.
One issue with that much water is stickers...most sticker solvents
won't last through that sort of beating.
> I've always thought that water was the mortal enemy of anything electronic,
> at least while power was applied. 8-)
On the table on the other side of this room I have a Sun monitor
that I got from a surplus house for free. It had been sitting outside
fully exposed to the weather for upwards of six months. I've had it
for nearly five years; it's still going strong!
Contrary to popular belief, water itself is a near-perfect
insulator. It's the crap dissolved in, and the particulate matter
carried by, said water that causes problems with electronics.
If you can find Freon TF, fill a dish pan with an inch or so of it
and dunk the boards. It will get the dust out of those hard-to-reach
places.
And it's also great with vodka.
-Dave
--
Dave McGuire
Laurel, MD
Hello. I have one question to somebody that managed
one DILOG DQ-614 in sometime. I've read the instructions
of the DQ696 and the proceddings to access the ROM
menu of this board appears to be applicable to the DQ614;
that is, when I type:
@7775000G
... in the ODT prompt of one PDP-11/23 PLUS, appears
inmediately the '*' prompt.
But, when I type 'FT', the prompt simply appears again.
No menu. Nothing. If you send a break to the system,
it makes appear again the @ prompt of the ODT.
My interest about this is in access this phantom menu to
be capable of partitioning and formating one RD52 Hard Disk
that is connected to the board.
Somebody know something about this matter ?
Thanks
Sergio
In the daily dumpster rounds today, I ran across a pair of large boards,
about 15" square, each labeled "DGC Nova2 16K memory, (c)1973 by Data
General Corp". They're designed to plug into a backplane with a pair of
cardedge connectors, 100 pins each. (This is, I'm sure, a well-known bus,
but not well-known to me. :-) )
The two boards are essentially identical, I think; the layout looks the same
but one has a layer of green enamel over the traces and the other leaves
them exposed. The center of the board is taken up by a slightly smaller
board, about 10"x12", labeled "DGC Nova 16K memory stack". An aluminum panel
unscrews to unfold from this board, revealing a large array of (I think)
core memory -- correct me if I'm wrong on this. Whatever it is, a huge
amount of incredibly tiny red and green wires woven together; quite
beautiful in its way. The traces on the PCBs are quite pretty as well,
artistically curving along their paths. Nothing at all like the autorouted
boards you see today.
Anyway, rambling aside, I don't really have any use for these boards. They
both have pricetags on them saying $9.95, but I have no idea from when or
where. So if anyone wants them for the price of shipping or wants to pick
them up from Pasadena, CA, just let me know; I'll keep them around for a few
weeks at least. Otherwise, maybe I'll (non-destructively) hang them on the
wall.
-Rob
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