I know this is a long shot, but does anyone know if the DEC VSXXX mouse (VAXstation/early AXP) signaling protocol is shared
by anything else (Sun mice, for instance). I've got the LKA, so all I need is a mouse substitute.
I see to recall that someone was looking for an ADM-3A a short time
ago. I have an ADM-3A+ that is clean, except for a crack in the top
casing just to the left of the keyboard. Video is bright and pretty
crisp. I also have a ADM-5 logic board, condition unknown. If whomever
it was is still looking for a ADM-3A, and a plus model is acceptable,
please contact me off-list at jcwren at jcwren.com
--jc
Just in case there are any!
I picked up our first blue-faced PET 2001 last night (we've got a couple of
the black-faced ones already), but it's cosmetically in a bit of a state after
living in someone's garage for years.
I know almost nothing about these machines - are there any particular gotchas
about restoring them (like, "don't touch this bit as all the paint will fall
off") other than the usual stuff that applies to bringing up a new toy for the
first time?
The logic board *looks* healthy enough - it seems to have escaped the
corrosion that's got bits of the case. Isn't there a particular chip (or
several) that's prone to dying in PETs though? Remains to be seen if it'll
power up.
What's software availability like? Any archives of tape data on the 'net
anywhere? (Diags would be great, games would be fun later on :-)
cheers
Jules
--
(\__/)
(='.'=) This is Bunny. Copy and paste bunny into your
(")_(") signature to help him gain world domination.
I have a small (5"?) panel-mount CRT here I'm trying to fire up. The
label on the top suggests that it's made by Nanao and is a model
MG-550CDM. Google turned up a hit or two, but no real information.
The PCB has a 10-pin single-sided edge-connector, visually similar to
the style Commodore used on PETs and C-64s. There are two connectors
on the back of the chassis - an RCA, clearly NTSC video in, and a 2x3
molex connector, obviously power and perhaps some additional control.
This came out of some piece of radio comms gear, if that helps place
its context.
>From what I can tell from cursory inspection, pins 1 and 10 are
ground, 5 and 9 appear to be no connect, 8 is NTSC in, 7 seems to be
AC in (can't identify AC return...), and 2, 3, 4, and 6 disappear into
the bowels of the circuitry.
If I'm lucky, there is some sort of industry convention in play here.
Does this arrangement ring any bells with anyone?
Thanks,
-ethan
Here's a partial list of stuff I am bringing to VCF/Midwest.
A pair of NeXT Turbo Slabs (consecutive serial numbers) complete
with monitors, printers, kybds, mice, cables, documentation and
OS CDROM.
Also some spare NeXT keyboards, mice, cables and some unopened
software.
IBM 5150, 5160, and an AT; a couple SGI boxes; an IBM RS6000 (/250
I think); and a Tandy 1000.
If still room in the car then some DECstations and associated stuff.
Mike Thompson
Does anyone have any experience in replacing the fans in a VAXstation
4000/vlc? I think the bearings in my system are going out.
Zane
--
| Zane H. Healy | UNIX Systems Administrator |
| healyzh at aracnet.com (primary) | OpenVMS Enthusiast |
| MONK::HEALYZH (DECnet) | Classic Computer Collector |
+----------------------------------+----------------------------+
| Empire of the Petal Throne and Traveller Role Playing, |
| PDP-10 Emulation and Zane's Computer Museum. |
| http://www.aracnet.com/~healyzh/ |
>drive and/or the 9153 on hpmuseum.net,
Bingo, that's the one. I have the 9153C, which is one of these funky
drives inside an enclosure with a GPIB interface.
It looks like at least some of the documentation has been restored to
hpmuseum.net.
To make the story short, my drive is dead and replacement drives seem to
go for absolutely amazing amounts of money, so I was toying with the idea of
hacking up some kind of replacement for it.
The next question is, what's the "SS/80 Command Set" ?
Thanks,
Bob
As it happens, we now have a speaker for VCF/Midwest. Jack Rubin is
going to talk about his 50 years of computing experience in a talk
titled "Still an enduser after all these years."
So please join us for that this Saturday, at 12pm. Maps, directions,
etc. are available from the website at:
http://www.vintage.org/2006/midwest/
Note that the times listed there are wrong; the event will start at 12pm
with Jack's talk, and the exhibits and marketplace will be open from
1pm until 6pm.
Pat
--
Purdue University Research Computing --- http://www.rcac.purdue.edu/
The Computer Refuge --- http://computer-refuge.org
The sleds I used were cut from sheets of plexiglas to fit snugly in the rails. I drilled 4 holes through the bottom to support a 3.5" ff drive.
Tempered Masonite hardboard could also be used, and then you wouldn't have to have static buildup precautions.
Metal sheets with retention brackets would be nicer, but I was going for quick and cheap (materials on-hand)
With 1" drives, you can mount 2 in each BA4x0 drive bay, one per "sled" per guide.
As before, I don't know how much power can be safely taken of of one drive sled connector, but I have the TK70, HSD05 and
one 1/3 ht Seagate Barracuda 4GB drive working off of one sled with no trouble (haven't actually used the TK70 yet, no tapes,
but it's plugged in and everything seems cool).
I have an IRIS that I've been working on off-and-on for a while. I'm currently looking into the graphics circuitry.
For a while, when I had it connected to the SGI monitor it displayed a garbled version of what I assume was the PROM monitor
(pixels/lines were skewed across the screen back-and-forth). I assumed that it was a video mode problem, checked the switches, and put
it back on - nothing. Then I tried a Sun multisync, and it switched into its "I don't know what to make of this input signal" flashing-light mode.
Checked switches again, tried with BPRN and BPRO jumpers in, tried again with BPRN/BPRO back out.
Put the scope on the IRIS sync output, compared it with a Sun 3/110 CG4 output. (thought it might be a sync issue)
The most common regular waveform (I assume it's HSYNC) is ~28KHz on the IRIS and 61.72 KHz on the Sun (measured with
the DSO's cursor function - digital scopes are trancendentally cool!) The Sun's sync is similar to published for 1152x900,
the SGIs is not quite what was expected for "Mode 1" on the IP2 (for either primary monitor or secondary monitor back-panel setting)
Primary is supposed to be 60Hz non-interlaced, secondary should be 33Hz interlaced (no HSYNC given)
