A friend has a PDP-11/40 for sale in New Zealand and sent me the
following information:
"I have a PDP11/40 for sale. It includes three (3) x RK05’s in various
states of repair, one (1) tape unit, one (1) A/D unit, spare parts of
unknown status, lots of disk packs, tapes and what looks like all of the
circuit diagrams for every card and peripheral in the machine, plus
RSK-11 manuals, some cobol manuals etc.
It was formerly used in the Wellington Hospital diagnostic lab,
presumably hooked up to some Lab machines there.
Note that it is 230v 50hz, so while the CPU may be easily changed to
your local voltage (I don’t know but I suspect it’s a transformer tap)
the disk spindles are likely to rotate at the incorrect speed if they
are clocked off the 50hz mains frequency.
The racks have been split to make it easy(er) to get out of the its
original location in a basement, and there is tape on the panels just
for shipping purposes. I removed the front panel for shipping to
prevent any damage, so it’s just installed temporarily for the photos.
They will be wrap separately in place in a box for shipping.
You can check out photo’s here:
https://www.dropbox.com/sh/fcldk7rekg6sbq3/AADeCjVHhz2YNr1CVxZK5JKZa?dl=0
This system will take time and patience to restore. As far as I can
tell everything is there, well maybe some of the disks have been ratted
for parts to get another disk working, but of course it comes with no
guarantees of any kind.
There are 8 cards in the CPU slots, plus five other cards that I assumed
to be tape controller, disk controller, A/D controller, plus memory x 2
or memory x 1 plus something else.
Keep in mind that all of the manuals, disk packs, tapes etc are boxed up
on a second pallet so there are two pallets for shipment."
Contact Brendan McNeill, Christchurch, New Zealand. at brendan(a)mcneill.co.nz
(I have no financial or other interest in this system, but would like to
see it go to a good home...)
Bruce
--
Bruce Ray
Wild Hare Computer Systems, Inc.
Denver, Colorado USA
bkr(a)WildHareComputers.com
...preserving the Data General legacy: www.NovasAreForever.org
hello cctalk! i have been working for the past few days on a DECmate II with what i believe to be an ailing RX50. i have a gotek with updated flashfloppy firmware, but for some strange reason i have been completely unable to get the DMII to boot a floppy image from it.
i have been trying to convert the OS/278 and WPS images on the dbit and ibiblio archives into a working format for the gotek but none of them will work. at this point i have tried too many conversions to recall but they all result in the same blinking floppy icon when the unit boots. i have “host = dec” in my FF.CFG per the wiki.
has anyone else been able to get this working? if so, could you please provide known-good images for a gotek, or the steps to generate them?
thank you in advance!
—
.hush
Got interesting stuff to sell? Let me know!
Looking for DEC, IBM, CDC, SGI, Data General, and more!
For cleaning and maintaining floppies give shadowtronblog on YouTube a watch. He lovingly restores various vintage equipment. There are a few vids of him restoring some floppies, cleaning heads, greasing mechanical bits etc. I think his TRS80 playlist had a fair bit of that in IIRC.
When reading old floppies, how often is it advisable to clean the drive? I managed the first 3.5” floppies no problem, I’m using a USB Floppy Drive hooked up to my Mac Laptop, I was able to image them using “Disk Utility”. The next two floppies have had errors. Though I think I was able to successfully copy all the files off the one.
Also, what is floppy drive cleaning fluid made of, and how well does it age? I know I’ve got at least a couple cleaning floppies around here, but they’re *OLD*.
Zane
Do I really need a torque spanner? Chinese spanners aren't expensive. But I'm not sure the unit even works (the mainframe seems to work fine, not so sure the ancillary test set). Hp 54120a + 54122a << iirc, maybe 54121a??? In any event if working this is either a 12ghz or 20ghz setup.
2 x 16" Trinitrons, missing rear plastic covers
1 is a 98789a 64hkz, forget the other, 48khz
1 x 19" large rectangular color unit, doesn't work.
I'll be tossing these before very long.
This may be a larger conversation than I intend but how would you all
generally start if you ha backup tapes that you wanted to try and
read/restore?
Supposedly they're Amiga qic tapes. I'm a little worried about the
structural integrity of the tapes. Not knowing what software was used,
would this be a literal job for something like tar via a Linux system? Then
see if I can interpret the dump and sort out files afterwards?
I might see if a local group wants to help play with this effort since I
think I only have 1 drive in unknown condition.
Hello everyone I’m a young collector (18) of 60s and 70s minicomputers and micros. I have been restoring a PDP-8L and would love to find ether a Diablo series 30 or Dec RK03 removable cartridge drive to go with this system. I am in the uk South Yorkshire to be precise and would love any leads anyone could provide on where I could find one would very much appreciated. If nobody know where one of these drives can be located any means of mass storage for a pdp 8L and data general nova system will be appreciated since I want to move my collection forward and have the systems set up with full period setups.
Thanks very much in advance.
Jake
Hi all
I get the digest so I lag.
>From: skogkatt007(a)yahoo.com
>
>It's a IBM PC form factor 68000 based project that was featured in
>Radio Electronics. Anyone remember it or even know what I'm talking
>about? It would be a fun prokect.
Come on over to "List: <fufu(a)flexusergroup.com>" there are people
still running those.
Peter Stark passed away September last year.
There's also Ingo Cyliax' 68030 box, also PC form-factor and ISA.
W
