>
>Subject: Re: DEC Pro380 disk drives
> From: Pete Turnbull <pete at dunnington.plus.com>
> Date: Mon, 07 May 2007 10:37:58 +0100
> To: General Discussion: On-Topic and Off-Topic Posts <cctalk at classiccmp.org>
>
>On 07/05/2007 03:06, Charles H. Dickman wrote:
>> Can the Pro380 be used with RX33 drives in place of the RX50? The Pro
>> technical manual doesn't say anything about the RX33. It also doesn't
>> say that there is a way to change the floppy data rate, so I am guessing
>> it does not support them.
>
>I don't think so, but others may know more.
RX33 can be used in a pro380, however it's used as a RX50 with same data rate
and single sided. The upside is a pair of RX33s will fit and are far more
reliable and quieter.
>> Can the Pro380 be used with any ST506/ST412 type hard disks or just
>> RD50, RD51, and RD52? I have a couple RD32 and some non-DEC drives and
>> am curious if any of the could be used with it. How do you format a
>> drive for a Pro? I never noticed any support for Professionals in XXDP?
>> Was there a utility in P/OS for that purpose?
>
>I guess you need to format it the way you would for an RQDX1, with XXDP.
> I do know that it shares some low-level code with the early RQDXs, and
>uses similar sniffers to determine the drive type, so you can't just use
>any drive -- it has to look like one of the ones a Pro supports.
Other drives work once formatted.
Allison
We've just bought a house, so I will no longer have room for all my DEC
Stuff. There is a PDP-11/83, a PDP-11/24, 2 RL02's, a 9 track tape drive,
etc. If anyone wants it come and get it, otherwise it will have to be
disposed of in early July
--
Christopher L McNabb Tel: 540 231 7554
Senior Systems Engineer Email: cmcnabb at vt.edu
Virginia Tech ICBM: 37.205622N 80.414595W
ARS: N2UX Grid Square: EM97SD
I went to the City of Chicago Recycling Center on Goose Island yesterday to drop off some old monitors. They do not sell what they take in, which is mainly PC's, monitors, and printers. Some get fixed up for schools, etc., but most get recycled. In true Chicago fashion, when I asked if they sold any of the intake, the attendant said no, but he had a cousin who I could buy some items from.
All in all, not a place to get classic equipment, but a good place to dispose of dead monitors.
Bob
Hi,
I don't know if you saw the SC/MP LCDS (Low Cost Development System) for
sale on eBay (Australia) last week, but I bought it. I've been looking for
one of these babies for a long time, and to find one for sale near where I
live was too good to be true.
Indeed! It's dead.
Hehehehe, but it has all the parts and manuals, schematics and ROM listing.
So, I guess I'm going to be busy in the next few weeks while I try and trace
the fault.
It's getting the right voltage, so I am assuming it's a bad chip or a ROM
has gone bad. I'll get the CRO onto it and try and read the ROMS to find out
what's going on.
It came with both a SC/MP I and a SC/MP II processor card. Neither card
works in the system so I am assuming it's a main board fault.
I got a homebrew SC/MP system and some spare CPUs so I can chop and change
and hopefully get this old system running.
I'll let you know how I go.
river
Today I tried out my new (18 year old) Microvax 3800 .
(tk70, ethernet, rf31, rf72, scsi ). I removed the KDA50 boards.
The system tries to boot into VMS5.4, but hangs because it seems to look
for diskarrays that are no longer present.
Is it possible to boot into a root mode to change the startup behaviour
? Of course passwords are not available.
I am also looking for some brackets to mount the RF's into the BA-213.
( The drives came from a ba-400 chassis ) Or are other smart mounting
solutions posssible ?
Finally, are DSSI and SCSI terminators identical ?
To make place for the 3800, a Microvax II/gpx has to go .
Working, needs new disk, located in Zurich, Switzerland.
Jos Dreesen
Can the Pro380 be used with RX33 drives in place of the RX50? The Pro
technical manual doesn't say anything about the RX33. It also doesn't
say that there is a way to change the floppy data rate, so I am guessing
it does not support them.
Can the Pro380 be used with any ST506/ST412 type hard disks or just
RD50, RD51, and RD52? I have a couple RD32 and some non-DEC drives and
am curious if any of the could be used with it. How do you format a
drive for a Pro? I never noticed any support for Professionals in XXDP?
Was there a utility in P/OS for that purpose?
-chuck
I am looking for the source listings for the RQDX3 disk formatting
utility ZRQC from XXDP. I am wondering if they are part of the
diagnostic micro-fiches. I think there are a couple people on the list
with copies of the fiches.
I want to try formatting some non-DEC hard drives. A search of the web
shows that some have been successful in patching the drive description
tables to format a drive with non-standard geometry, but I think getting
the parameters for Bad Block Replacement right is the tough part. Maybe
the formatter sources will help.
-chuck
On 5/6/07, Zane H. Healy <healyzh at aracnet.com> wrote:
> At 1:58 PM -0700 5/6/07, Scott Austin wrote:
> >Question 1: Which to keep: II, II+, or IIe? I need to review Apple
> >system hardware history, but I'd figure the IIe has the most
> >capability, but the II is more significant.
>
> If I was to choose, I'd go with the IIe, especially after looking at
> the list of HW. That Mockingboard is a soundcard I believe.
It is a sound card. I forgot to mention that you might want to keep
it. ISTR it's something like a 4-channel software-driven multi-voice
sound card - unusual in a day when "sound" was either a CB2
shiftregister output from a 6522 or a single-bit like the speaker
output on a PC.
They weren't very common, but back in the day, they were cool to play with.
-ethan
On Monday 07 May 2007 01:16:10 am cctalk-request at classiccmp.org wrote:
Hiya,
I am bit confused by this whole Mentec thread on one point. I have a 11/23+
here and with it the original DEC labled RSX11 and RT11 media that came with
it. Am I allowed to use these distributions. ?? I am assuming yes. Is this
thread pretty much about others reusing RSX11 and RT11 freely in a hobbist
sense without original media ??
I guess what I am confused about is that most every PDP I ever saw came with
RT11 and or RSX11 bundled. So whats the license deal ??
--
Kindest Regards,
Francesca Smith
"No Problems Only Solutions"
Lady Linux Internet Services
Baltimore, Maryland 21217
Today I tried out my new (18 year old) Microvax 3800 .
(tk70, ethernet, rf31, rf72, scsi ). I removed the KDA50 boards.
The system tries to boot into VMS5.4, but hangs because it seems to look
for diskarrays that are no longer present.
Is it possible to boot into a root mode to change the startup behaviour
? Of course passwords are not available.
I am also looking for some brackets to mount the RF's into the BA-213.
( The drives came from a ba-400 chassis ) Or are other smart mounting
solutions posssible ?
Finally, are DSSI and SCSI terminators identical ?
To make place for the 3800, a Microvax II/gpx has to go .
Working, needs new disk, located in Zurich, Switzerland.
Jos Dreesen
