>> Another warning. There's a stuff called 'silver solder' used by
>> engineers. This is _NOT_ the same stuff at all -- it's high melting point
>> (you can use it on small steam engine boilers, etc). I'm not sure it even
>> contains silver.
>Yes, it does, and it is applied with a torch and water soluble flux.
I'm not sure exactly what Tony is talking about, but it is indeed true
that in some contexts (musical instrument repair, in particular) "silver
soldering" refers to brazing with a bronze alloy - there's no actual silver
involved at all.
"Silver soldering" can refer to a half-dozen other processes, as well...
(most of them admittedly involving at least some silver!)
--
Tim Shoppa Email: shoppa(a)trailing-edge.com
Trailing Edge Technology WWW: http://www.trailing-edge.com/
7328 Bradley Blvd Voice: 301-767-5917
Bethesda, MD, USA 20817 Fax: 301-767-5927
Allison,or Anyone
I recently got my MicroVAX I up and running it's MicroVMS 4.1
I listed devices and have an RD52 as DUA0.
and an RX50 as DUA1 and DUA2
I did not see any directory commands to tell how much disk space is
used/available. Are there any?
Nor did I see any FORMAT command. (Which at this point I want to AVOID,
because I don't understand the Backup process or target backup media
capacity constraints. It sounds like backup clones the OS on the same drive
in "renewed" and/or "rebuilt" files )
According to Allison's prior post, should I assume this RD52 is a 30MB MFM
non SCSI drive?
I also have a Plessy 6600/6700 system which has a 84MB-90MB drive which I
think hangs on a DEC compatible SCSI controller.
(I believe the Plessy is an LSI-11/34 clone.)The Plessy also has a Cipher
F880 1600 bpi 9-track tape drive connected.
Is there a chance I could Load the Hobby openVMS on either one, or both of
these systems in a cluster?
It seems to me the more capable system would be the Plessy with larger HD
and Tape Unit already installed, (However I have never booted it, and I
have no Idea what OS currently resides on it.)
I believe someone gave an earlier response that the MicroVAX I was too
small to run openVMS alone.
Sincelely
Larry Truthan
-----Original Message-----
From: Allison J Parent [mailto:allisonp@world.std.com]
Sent: Wednesday, December 01, 1999 8:36 AM
To: Discussion re-collecting of classic computers
Subject: Re: VAXstation 3100 history (Was ... different)
<I just got mail from a friend in Virginia who is saving a MicroVAX 3100-90
<for me that they are pitching out where he works (and he'll *deliver*, too!
Thats a nice VAX!. I forget the URL of where to find vax performance
numbers.
<an external tape that, from his descriptions, I'm assuming is a TLZ30 or
<similar. One minor catch - they filled the disk and it won't boot. I tak
Never hard of that problem. I suspect soemthing else has happend.
<it I can conversational-boot it and use the console as the startup file to
<wrest control from the system in the earliest stages, then, at least, purg
Likely you can assuming the disk is even there at all. If all else fails
drop in a 200-400mb scsi drive and install VMS 7.2 (hobby license) and
go on that. Once up you can mount the offending drive and see.
<Did I miss anything? Is there a publish procedure for recovering from tota
<full disks, or will I have to go back to the manuals and remember how to d
Never seen that failure.
Allison
I hope this is on topic, it can't be far off ;=)
I am trying to install NetBSD on my MicroVAX 3100. I would like to
install it on the RZ56 which is in its own expansion box. The problem,
or so I am told, is that the drive as it is needs to be told to spin up
and NetBSD doesn't do that.
It has been suggested that there might be a jumper to tell it to spin up
automatically. Does anyone here know if that is the case, and if so,
where it is?
--
Regards
Pete
My Point would be that the ABSENCE of option jumpers on pin headers usually
defaulted to immediate start.
If you see an option jumper on the RZ56 other than SCSI ID. Would it hurt
to pull it?
Others?
I Know... Bad form to reply on my own message...
Sorry
<SNIP>
To: Discussion re-collecting of classic computers
Subject: RE: RZ56 Help needed
Importance: High
I know nothing of the RZ56, BUT
Sincerely
Larry Truthan
>I am trying to install NetBSD on my MicroVAX 3100. I would like to
>install it on the RZ56 which is in its own expansion box. The problem,
>or so I am told, is that the drive as it is needs to be told to spin up
>and NetBSD doesn't do that.
>
>It has been suggested that there might be a jumper to tell it to spin up
>automatically. Does anyone here know if that is the case, and if so,
>where it is?
Hmm. I didn't have any luck with the RZ56 and the MicroVAX 3100. I never
had any time to track it down.
As a first attempt to see if it will work at all, you can do a
SHOW DEV at the >>> prompt to get the console to spin up all the
disks. It's been my experience that NetBSD hangs while trying to
probe the SCSI bus if there's an RZ56 on the SCSI bus.
I'm not aware of a jumper that makes the RZ56 spin up, but there is a
setting in one of the mode pages. There was a program under Ultrix called
rzdisk that allowed you to, among other things, tell the drives to spin
up at power on. I think there was a similar program for Alpha/VMS as well.
Roger Ivie
ivie(a)cc.usu.edu
I know nothing of the RZ56, BUT several seagate drives had jumpers for Motor
Start and Delay Motor Start.
In Seagate terminology if the Motor Start jumper was connected then the
Drive Waited for the SCSI "Start Unit" command to start the drive. IF the
Motor Start Jumper was NOT CONNECTED the drive fell through to a delay motor
start scheme. If the Delay Motor Start jumper was MISSING,-the delay was
disabled. If the Delay Motor start jumper was installed the drive multiplyed
the SCSI ID by 10 seconds and spun up the spindle. So ID 2 would spin up in
20 sec. ID 3 would Spin up in 30 sec. etc. I assume ID 0 would start
immediately on power up.
I had also seen some IBM SCSI drives that had a motor start jumper termed
"start on command", otherwise they powered up immediately.
But then again those were Seagate and IBM schemes, I can't speak to DEC
RZ56..
Sincerely
Larry Truthan
-----Original Message-----
From: CLASSICCMP(a)trailing-edge.com [mailto:CLASSICCMP@trailing-edge.com]
Sent: Friday, December 03, 1999 3:32 PM
To: Discussion re-collecting of classic computers
Subject: RE: RZ56 Help needed
>I hope this is on topic, it can't be far off ;=)
>
>I am trying to install NetBSD on my MicroVAX 3100. I would like to
>install it on the RZ56 which is in its own expansion box. The problem,
>or so I am told, is that the drive as it is needs to be told to spin up
>and NetBSD doesn't do that.
>
>It has been suggested that there might be a jumper to tell it to spin up
>automatically. Does anyone here know if that is the case, and if so,
>where it is?
I don't know about jumpers, but if you do a SHOW DEV from the console
">>>" prompt does this spin the drive up for you? Is this good enough?
If not, I suppose you'll have to chalk this up as yet another "supported
by NetBSD but doesn't work" bug...
Tim.
> I also collect various mediums for recording sound. I have a CD player,
> cassette deck, several turntables, a Rio, multiple reel to reel tape players
> (one of which is run by vacuum tubes), and a few 8 track decks. No wax
> cylinder player yet, unfortunately.
Darn! How could I forget. I collect LPs (long playing records). I also
collect 78 rpm records, which I play on a wind-up gramophone, but I don't
collect many, because I seldom find any with music that I like (= mostly 20th
century classical, FWIW [**]). I also collect CDs, but only if I can't get the
recording on LP.
I have some 8-track tapes, but I passed up the only player I ever saw and have
regretted it ever since... (it was at a car boot sale and I had already bought
as much as I could carry home. I hadn't brought the car)
> I also have, as my secondary refridgerator, a 1952 westinghouse frostfree
> refridgerator, which still works great. I've started collecting vacuum tubes
Nice. It's not long since my parents got rid of the huge LEC refrigerator that
they acquired secondhand in 1973 [*]. Nice beast, but the door latch was broken
and would have needed a custom casting to repair. We held it shut with bungee
straps for years. Can't remember what finally killed it. Goodness knows what
date it was, but I'd guess 1950s.
Philip.
[*] Bought a house that had been a shop. The fridge had been installed in the
shop, and was left in the house by the previous owners.
[**] Top of my wish list: Did Bartok ever make a recording of his first or
second piano concertos?
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>I hope this is on topic, it can't be far off ;=)
>
>I am trying to install NetBSD on my MicroVAX 3100. I would like to
>install it on the RZ56 which is in its own expansion box. The problem,
>or so I am told, is that the drive as it is needs to be told to spin up
>and NetBSD doesn't do that.
>
>It has been suggested that there might be a jumper to tell it to spin up
>automatically. Does anyone here know if that is the case, and if so,
>where it is?
I don't know about jumpers, but if you do a SHOW DEV from the console
">>>" prompt does this spin the drive up for you? Is this good enough?
If not, I suppose you'll have to chalk this up as yet another "supported
by NetBSD but doesn't work" bug...
Tim.
If they are only supposed to be horizintal then you can't put them in a BA23
in a pedistial configuration.
Dan
>The tk50 is nominally fond in the top horizontal slot in the ba123 (there
>are 4 of those) and the vertical slot is the RX50. That would be the
>factory config as well. Also take care mounting it to the sleds used for
>those slots, the metal can short the TK50. Also I have never seen TK50s
>run horizontally nor do I think it's acceptable.
>
>Allison
>
>On Thu, 2 Dec 1999, Chuck McManis wrote:
>
>> Does anyone know what the "official" word is on TK50 orientation? By
>> orientation I mean can I put a TK50 drive in a BA123 in the "sideways"
>> slot? (Tape slot's long direction is vertical) I notice that they would
>> have to be that way in a BA23 in a floor stand.
>>
>> And speaking of BA23's, does anyone have a spare floor stand? I've got a
>> VAXStation 3200 that I'd like to put in a floor unit (I've currently got
it
>> in a rack shelf.)
>>
>> --Chuck
>>
>>
I'm looking for manuals for Processor Technology 16KRA and 32KRA
S100 memory boards.
I've a SOL-20 with 1 of each, and the 16KRA has a bad 4k block so I'm
trying to (1) figure out how to reconfig the cards so the bad memory is
at the end instead of the middle, and/or (2) figure out how to fix the
bad card.
Anyone able to xerox their manual(s) for me?
Thanks
