Hi Ken/Andy/Bill,
I have some old marketing Pyramid brochures as well as some videos now on
DVD, If you want any copies drop me a line off topic.
Regards markb.
Mark Brennan
System Engineer
System Services
FUJITSU
Fujitsu House, South County Business Park, Leopardstown, Dublin 18, Ireland
Tel: +353 (0) 1 2076900
Mobile: +353 (0) 87 2222326
Fax: +353 (0) 1 2161863
E-mail mark.brennan at ie.fujitsu.com
Web: http://ie.fujitsu.com/
Fujitsu Services Limited, Registered in England no 96056, Registered Office
26, Finsbury Square, London, EC2A 1SL
This e-mail is only for the use of its intended recipient. Its contents are
subject to a duty of confidence and may be privileged. Fujitsu Services does
not guarantee that this e-mail has not been intercepted and amended or that
it is virus-free.
-----Original Message-----
From: Ken Seefried [mailto:ken at seefried.com]
Sent: 24 November 2005 03:33
To: cctalk at classiccmp.org
Subject: Pyramid - Re: Masscomp OS floppies / tape dump
From: Bill Pechter <pechter at gmail.com>
> I wish I had the sources for it and Pyramid's OS/x...
We had a Pyramid 90x when I was at GaTech. Really nifty box, but
exceptionally obscure now. Sorta like our Kendall Square Reasearch machine
(KSR/1).
>From: "Julian Wolfe" <fireflyst at earthlink.net>
>
>The burned out resistors wouldn't have had anything to do with the blown
>flyback or the shorted components I replaced on the video board?
>
Hi
They could but you still need to look at the schematics to
see how they may have done this. It is possible that the
power supply failed in such a way that it blew up the
parts on the video board. If so, simply replacing the resistors
may make expensive smoke of your replacement flyback
and other parts.
It is always wise to evaluate the root cause of each
known bad component. If the resistors are in series with
the load, it is likely that the shorted parts on the
video board may have caused the damage. If you see the resistors
in other paths, look to see what in the supply might
have also caused the failure.
As an example, the series pass transistor in a regulator
output stage could have gone short. This would cause the
voltage to go way above what the flyback was designed for.
It shorted some turns that cause the horizontal output
transistor to go short from excessive power. Now a
resistor that was used in series with the supply's output
might smoke because there was nothing else limiting the
current. This is only an example of thousands of possible
problems.
In other words, you need to look at the failures and
justify the cause. Resistors burn up because they
have excess power dissipated. This is caused by the voltage
going up across them for some reason.
Dwight
> Now here's a tricky question: If the SE30 were the only mac
> in my entire household, how would I procure an OS install on
> diskette for it? The drive in that thing is the 800K
> multi-speed beast, yes?
Do you have a PC? Apple does (or did) offer the OS's on their website,
and there were instructions about how to use various PC based programs
to write them in a Mac 800K format from a PC drive.
Somewhere I have the images and software because I've had to do this
once.
Can anyone tell me the part numbers for the cable and breakout panel
for the RQDX3 that allows it to be plugged into an RDxx MFM drive and
an RX50 floppy drive? My understanding is that there is a ribbon
cable that connects the RQDX3 module to some sort of panel that has
places to plug in the cables that connect to the drives. I think the
RDxx drive just uses standard PC type cables between the drive and
this panel. Is that correct? Anyone know the part numbers for these
parts?
Thanks,
David
>
>Subject: Cable and breakout panel kit for RQDX3
> From: David Betz <dbetz at xlisper.mv.com>
> Date: Wed, 30 Nov 2005 16:21:39 -0500
> To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org>
>
>Can anyone tell me the part numbers for the cable and breakout panel
>for the RQDX3 that allows it to be plugged into an RDxx MFM drive and
>an RX50 floppy drive? My understanding is that there is a ribbon
>cable that connects the RQDX3 module to some sort of panel that has
>places to plug in the cables that connect to the drives. I think the
>RDxx drive just uses standard PC type cables between the drive and
>this panel. Is that correct? Anyone know the part numbers for these
>parts?
I dont have the box with all the board and cables so it's all from memory.
It carries a 50-class part number for BA23 boxes (mounted at the rear wall
of the drive cavity) it's breaks the 50pin out to a floppy (rx50 or 33)
and one drive (RDxx). Th board is only three or 4 connectors and nothing
else so if you find the schematic you could make it easily.
For the BA123 it an M9058 which looks like a Qbus board (it is) and it
breaks the 50pin out to the mix of up to 4 drives(RDxx) and a floppy
(RX50 or 33). The cables are 50pin IDC and the drive cables are 34 for
floppy and hard disk and a narrow (22 or 26 pin) for the hard disk.
The cables are nothing special (no PC half twists). The M9058 requires
5V power off the Qbus.
Allison
My IBM 1130 arrived today from Austria. It was packed very well, first
wrapped in cardboard, then plastic wrap, then a sealed foil material,
and finally a really strong crate. It spent a week in customs but they
never even opened it up. The machine itself is quite dirty and will take
some time to clean up, but looks complete and restorable. It came with a
box of disk cartridges with unknown data or software. The main problem I
have is that it's a 50 Hz machine. I assume the power supply could run
on 60 Hz but the disk drive probably will not run correctly on 60 Hz. I
believe the best thing is to start looking for a 60 Hz to 50 Hz power
converter. Have a look at the unpacking at:
http://www.dvq.com
Bob
>Dammit, I've got to get one of my PDPs going so I can play ADVENT again,
>assuming my RL02s are still readable :)
>
>"a hollow voice says...."
"FOOL" :)
I have an RL02 image running on SIMH OS/8 and I have the ADVENT.SV and the other ADVENT.** files. But it still won't run. What pieces do I need to complete the ADVENT game?
thanks
Charles
Waaay...Back when I occasionally taught BASIC and APL, I always heard (Where?)
that the "?" meant "What Is". Like:
?2+2 (What is 2 plus 2)
?2^16
and that this was intended to be used in "Immediate Mode".
Some BASIC I used to use (Hmmm..??) would accept the "?" in program input
lines, like:
100 ?"The Result is ";A
but if you did LIST, it was shown as PRINT.
That WAS a while ago...
Regards, Terry King ...On The Mediterranean in Carthage, Tunisia
terry at terryking.us
