I am not a vax person, I'm posting this for someone else. Could anyone offer
advice for me to relay back to this person (other than reseating boards,
cleaning connectors, or other non-vax-specific stuff)?
--
I was hoping you could help me answer a question. I have a Vaxstation 3100
th
On 2016-Jan-18, at 5:09 PM, Mike Loewen wrote:
> On Mon, 18 Jan 2016, Chris Elmquist wrote:
>> On Monday (01/18/2016 at 02:55PM -0700), ben wrote:
>>> On 1/18/2016 2:32 PM, tony duell wrote:
You missed out
STRING AND SEALING VAX : What you need to kludge up a solution to just
Someone would like to move out a Micro LSI-11 in a BA23 pedestal cabinet.
Location is Northwest Ohio. Email me off-list if interested.
J
Since my 11/730 is so small compared to its contemporary VAXen, I'm thinking of
naming it VAXINA.
--
Mark J. Blair, NF6X
http://www.nf6x.net/
On Mon, 18 Jan 2016, Chris Elmquist wrote:
On Monday (01/18/2016 at 02:55PM -0700), ben wrote:
On 1/18/2016 2:32 PM, tony duell wrote:
You missed out
STRING AND SEALING VAX : What you need to kludge up a solution to just about
any problem.
-tony
E
On Monday (01/18/2016 at 02:55PM -0700), ben wrote:
> On 1/18/2016 2:32 PM, tony duell wrote:
> >You missed out
> >
> >STRING AND SEALING VAX : What you need to kludge up a solution to just about
> > any problem.
> >
> >-tony
> >
> >
> EAR VAX : Salesman'
On 1/18/2016 2:32 PM, tony duell wrote:
You missed out
STRING AND SEALING VAX : What you need to kludge up a solution to just about
any problem.
-tony
EAR VAX : Salesman's problem when you try to order a DECSYSTEM 10
You missed out
STRING AND SEALING VAX : What you need to kludge up a solution to just about
any problem.
-tony
VAXCINATION A "preventive training" provided to potential
users of the VAX system to prevent software
foul-ups other than deliberate.
VAX-RAY A high-energy screening to determine whether a
user is qualified to have a VAX I/O station on
> indeed this machine has a 98204B video board (intended to work with a 35721
> monitor,
> which I don't have). I have not yet found the specs for its composite signal.
It is normal composite video voltage levels with faster-than-normal horizontal
scan rate.
If you have a frequency counter (o
On 1/18/2016 10:51 AM,
martin.heppe...@dlr.de wrote:
this machine has a 98204B video board (intended to work with a 35721 monitor,
which I don't have). I have not yet found the specs for its composite signal.
It's around 25khz. The 98204B is
normally used with the 35721 or 35731
640x400
So if all LEDs remain on, that most likely means the CPU is not able to execute
instructions at all.
It might mean a busted CPU, busted ROM or CPU bus, or missing power or clock.
Yes,
that's exactly my feeling... so a schematic would be very good to try to
diagnose an evident problem as mi
So if all LEDs remain on, that most likely means the CPU is not able to execute
instructions at all.
It might mean a busted CPU, busted ROM or CPU bus, or missing power or clock.
Yes,
that's exactly my feeling... so a schematic would be very good to try to
diagnose an evident problem as mi
On 01/18/2016 11:53 AM, j...@cimmeri.com wrote:
On 1/18/2016 12:46 PM, Jon Elson wrote:
Last year I read in some 1993 backups of my MicroVAX
system with no trouble at all. I did have to clean the
tape head after every tape, but that wasn't greatly
different from when the tapes were new.
On 01/18/2016 02:39 AM, Dave G4UGM wrote:
I know that tapes have different coatings, so some are ferrous and
other chrome based, but what about the backing and "glue" that holds
the two together?
The difference in coatings between digital and analog tapes is pretty
profound, as is the method o
> What is the exact model number of the video card?
>
> I am assuming it's an HP98204 of some flavour. The HP98204A uses (US, RS170)
> TV rates and
> can be connected to any composite monitor that expects that. A lot of TVs
> (rather than monitors)
> in Europe can accept that and have composite i
On 01/18/2016 09:46 AM, Jon Elson wrote:>
Longevity of tapes was very spotty. Some expensive, name-brand tapes
just disintegrated after a few years. Others have held up amazingly
well. Last year I read in some 1993 backups of my MicroVAX system
with no trouble at all. I did have to clean th
On Mon, Jan 18, 2016 at 10:13 AM, tony duell
wrote:
> IF the PC100-A is like the PC100-B (which I have full schematics for)...
>
> > All LEDs on, means, "replace the system board".
> >
> > I'm not sure, he wanted to hear that ;-)
>
> And it's not even right!. You can have all LEDs on with a perfe
On 1/18/2016 12:46 PM, Jon Elson wrote:
Longevity of tapes was very spotty.
Some expensive, name-brand tapes just
disintegrated after a few years.
Others have held up amazingly well.
Yeah, I think even among the same brand
/ model. Like I've heard bad things
about Black Watch before t
On 01/18/2016 10:56 AM, j...@cimmeri.com wrote:
Interesting. I just happen to have a 3M Black Watch tape
right here next to me that I'm using to test a Mark 300
tape cleaning machine. The tape so far is fine, not
shedding anything front or back.
Sorry about previous reply, hit wrong b
On 01/18/2016 10:56 AM, j...@cimmeri.com wrote:
On 1/18/2016 11:33 AM, Jon Elson wrote:
There was a tape sold by a few manufacturers (I think
3M's was called Black Watch) that had a coarse black
matte finish on the back side. A problem with some
drives which had fast rewind speeds was that
IF the PC100-A is like the PC100-B (which I have full schematics for)...
> All LEDs on, means, "replace the system board".
>
> I'm not sure, he wanted to hear that ;-)
And it's not even right!. You can have all LEDs on with a perfectly good
system board. A fault in the power-OK circuit in the P
On 1/18/2016 11:33 AM, Jon Elson wrote:
There was a tape sold by a few
manufacturers (I think 3M's was called
Black Watch) that had a coarse black
matte finish on the back side. A
problem with some drives which had
fast rewind speeds was that air was
trapped in the tape wind, and then
on
I think I have had a most instructive day. I did what I should have done a lot
earlier and connected
a (cheap, built from a Velleman kit) DSO to the output of the read amplifier in
my TU58. That's
pin 6 of the CA3130 at location E28 if you are trying to follow along in the
printset, The printset
On 01/18/2016 04:39 AM, Dave G4UGM wrote:
I know that tapes have different coatings, so some are ferrous and other chrome based,
but what about the backing and "glue" that holds the two together?
There was a tape sold by a few manufacturers (I think 3M's
was called Black Watch) that had a coa
> On Jan 18, 2016, at 9:59 AM, emanuel stiebler wrote:
>
> On 2016-01-17 18:11, Warner Losh wrote:
>> Would love to help, but I have the PC100-B. The PC100-A board is somewhat
>> different than the
>> PC100-B, but not super different.
>>
>> Have you checked the diagnostics table in the technica
On 2016-01-17 18:11, Warner Losh wrote:
Would love to help, but I have the PC100-B. The PC100-A board is somewhat
different than the
PC100-B, but not super different.
Have you checked the diagnostics table in the technical reference to see
what all LEDs lit means?
I'd crack open my copy, but it
I know that tapes have different coatings, so some are ferrous and other chrome
based, but what about the backing and "glue" that holds the two together?
Dave
G4UGM
> -Original Message-
> From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Chuck
> Guzis
> Sent: 17 January 20
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