I have four of them and they all look good.
Just the consoles.
No way to test them.
In Spring Hill Florida.
Would anybody like to make me an offer for them?
Plus shipping of course
Paypal, cash, check or money order
I'm scanning docs I have that don't seem to be online. In the process
I found a pretty efficient way to keep my flatbed scanner busy as much
as possible while scanning. I've written up my scanning process here,
along with links to docs I've scanned.
<http://www.xmission.com/~legalize/vintage/docs.html>
--
"The Direct3D Graphics Pipeline"-- code samples, sample chapter, FAQ:
<http://www.xmission.com/~legalize/book/>
Pilgrimage: Utah's annual demoparty
<http://pilgrimage.scene.org>
While poking around for some batteries and a coax adapter at one of the local electronics supply places, I came across (much to my utter surprise) a fairly clean Fluke 9010A micro-system troubleshooter plus two pods: One for the original Motorola 68000, the other for the 6809/6809E.
I asked about it, and was told that it was open for offers. Taking a long shot, I said "would $50 be OK?"
Less than a minute later, the answer was "You got it!"
I've seen the pods alone go for over three times that on Greed-bay. However, I have no intention of putting this unit up for grabs. They're way too useful for working on older embedded-CPU gear.
What really amazes me is that finding something like this was the farthest thing from my mind. I was going to go to the local Radio Shack instead of all the way across town, but a tiny mental nudge said "No, go to Tukwila instead."
Once again, I've found that listening to one's "inner voice" can be greatly rewarding to one's test gear collection (if a bit hazardous to one's checkbook). ;-)
Keep the peace(es).
-=-=-=-=-=-=-=-=-=-=-=-
Bruce Lane, Owner & Head Hardware Heavy,
Blue Feather Technologies -- http://www.bluefeathertech.com
kyrrin (at) bluefeathertech do/t c=o=m
"If Salvador Dali had owned a computer, would it have been equipped with surreal ports?"
One thing is sure: you need the alignment pack to align the RK05.
BTW Brad, I will check what boards of RL drives I have. I can't
remember if they were from RL01 or RL02 drives, and if the boards
are OK. Better have a dead board than none. A dead one can be
repaired. No board is, well ... nothing.
- Henk.
> -----Original Message-----
> From: cctalk-bounces at classiccmp.org
> [mailto:cctalk-bounces at classiccmp.org] On Behalf Of Brad Parker
> Sent: donderdag 13 april 2006 13:04
> To: General Discussion: On-Topic and Off-Topic Posts
> Subject: Re: RL drive lubrication
>
>
> J Blaser wrote:
> >
> > I opened each drive up, and did two things to each: 1) With
> > the upper and lower head 'trays' propped apart, I manually
> > exercised the r/w head carriage, moving it back and forth a
> > number of times, and 2) I put a couple of drops of oil on the
> > top of each motor's shaft, which was easily reached with the
> > service cover off.
>
> I'm curious if anyone has done something similar with an RK05.
>
> Certainly the bearings can be replaced, but can they also be
> cleaned and relubricated? is it safe to pull the entire
> voice coil assembly apart, clean the bearings and tracks,
> relubricate and reassemble?
>
> any suggestions? thx.
>
> -brad
>
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Thank you for your cooperation.
A fine machine; spent many happy hours programming these in my distant
youth.
Not much use without software however; alas, I threw out several boxes
of manuals and PPT utilities & games years ago. I do still have a programming
manual for it somewhere but, again, not much use without the assembler or
at least the M/L monitor. I believe Bletchley has one of these; they might
have some software for it.
If you're talking about the built-in PPT reader beside the keyboard, that's
only used for loading firmware and installing software; basic data I/O uses
mag stripe ledger cards, and a small internal HD for RAM.
They could have optional PPT I/O however; if you actually mean an external
PPT reader (unlikely, since then it would presumably also have a perforator),
that might be useful for someone to convert to a standard interface. I still
have one or two in case anyone's interested, BTW.
If you remove the innards and replace the top they do make sturdy desks or
workbenches; at least two of my clients upgraded them that way.
Some genealogy:
Series F was the original ledger card posting machine; mechanical marvels
of springs and levers, rotary accumulators & registers, full numeric keyboard,
and a type bar printer, as seen in many banks & offices in the 50's.
It was programmed via a removable rack of varying length metal pins; you
picked your "op codes" out of a compartmented tray or box (or made your own
with a sharp file) and "assembled" them into a program.
Carriage movement literally "stepped" through the "program", and the location
& length of the pins were the machine language (in the truest sense:) instructions.
Parallel processing of a sort, since each program step had multiple instructions;
i.e. you would read the keyboard, add & subtract the accumulator and up to 18
registers, and print, all in one operation.
Series E added switches and solenoids and connected it to an external
fridge-sized cabinet for calculations and core-based RAM; also added PPT
and mag stripe card I/O. Except for carriage movement, the programming pins
were replaced with "soft" code.
L2000-L5000 consolidated it into a desk-sized unit with a PC style A/N
keyboard, replaced the moving carriage printer with a dual tractor
Selectric type ball, and core with a hard disk.
L6000-L8000 replaced the mechanical keyboard & PPT loader with electronic
ones, the hard disk with solid state RAM, and added optional cassette I/O &
datacomm.
L9000 replaced the Selectric ball with a dot matrix printer.
B80 & B90 replaced the mag stripe cards with floppies and 5/10Mb fixed &
removable HD cartridges and added a display.
Since the ledger cards were gone, they then merged into the rest of the
B series (B800 etc.) with separate terminals/keyboards and printers.
mike
-------------Original message:
Date: Wed, 12 Apr 2006 18:13:13 -0500
From: "Dave Dunfield" <dave06a at dunfield.com>
Subject: Buroughs L5000 available
>I was in Montreal today picking up some goodies*, and the guy showed me
>a Buroughs L5000 accounting machine - too big for me, but he would love
>it to find a good home.
>It's BIG - the size of a good sized desk. The schematics that he had with
>it show a date of 1966... Has a keyboard, what appears to be a printer of
>some sort, and a paper tape reader. Thats all I know
>Located in Laval, outside of Montreal, Quebec Canada. Would be a monster
>to ship!
<snip>
Does anyone have cards that were used for HP TSB? I found an old
printout of my text based 3D D&D program (circa 1980) that I'll be
re-entering, but I've not found any of my old cards.
The HP card reader (HP 2761A) would read both punched cards and penciled
cards. We did not have a punch, so everything was done with a number 2
pencil. Our High School also used the HP-2114B system to grade tests
taken on these cards.
I seem to recall that they were printed in pink with black alignment
marks, but I've used so many scantron cards since then, my memory may
be cloudy.
--
Tim Riker - http://Rikers.org/ - TimR at Debian.org
Embedded Linux Technologist - http://eLinux.org/
BZFlag maintainer - http://BZFlag.org/ - for fun!
Captured between video processor (olympus) and video printer:
-> [2][0][3][FF][FC][1][83][18][3]
<- [2][0][2][FF][FD][81][8][3]
-> [2][0][3][FF][FC][1][89][20][3]
<- [2][0][2][FF][FD][81][8][3]
(values in hex, just a sample)
Does anybody recognise this protocol ?
I'll fill in the context if needed, now left off to reduce noise.
TIA
Bert
In a recent acquisition of several 11/23 systems I was fortunate to
receive four RL01
drives, being two sets of Unit 0 and Unit 1.
One set of these drives were very dirty/dusty, and by the looks of the
course filters
(which were deteriorating badly in all drives) and the accumulations in
the power
supply and plenum areas, I have to say this set was used in at least an
ISO Class 10
Million level (not so) clean room environment! The other drive set
was in
pretty good condition, cleanliness wise. I replaced all four course
filters, and
checked the absolute filters, which were actually okay even in the dirty
drives.
Because all of these have been powered off for many years, I opened them
up and
pulled the power supply for a session with my capacitor reformation rig
after
cleanup. With that successfully accomplished, and finding that all
voltages were in
line, everything was reassembled. During the wait for the capacitors, I
cleaned the
interior pretty well with a vacuum and Windex. As a side note, three of
the drives
still had the platter brushes installed, and since I already had each
drive opened
for power supply checkout, I went ahead and removed the brush assemblies.
Fortunately, the 'clean' set of drives are now fully functional, having
been tested
with one of the 11/23s.
Unfortunately, after mounting and LOADing a known good disk cartridge,
neither drive
>from the 'dirty' set will show READY after spinup. Though the details
are a bit
different, each drive emits a very noticeable sound, kind of a
whining/rumbling sound
(not squealing), that I think is indicative of dry bearings in the
spindle, the
spindle motor, or both. I wonder if dragging bearings are preventing
the drive from
becoming READY due to uneven RPM?
I've scoured the online documents for possible information regarding RL
drive
lubrication, but I can't come up with anything that suggests 'in the field'
lubrication options. The RL01/RL02 Maintenance Guide talks about
disassembly and
Field Replaceable Units, but nothing about lubrication.
So a few questions for those in the know:
Could dragging bearings be the cause of no READY indication?
Has anyone had any experience lubricating the appropriate assemblies in
an RL drive?
If so, what lubricant is recommended, where is it applied, and how?
Removing the motor for lubrication is no problem, but I wonder if
removing the
spindle assembly would then necessitate a head alignment once it's back
in place?
I'm not sure I'm ready to go through that process just yet! Still, if I
need to do
it, I need to do it.
Any advice is welcome.
Assuming I can get this resolved, I'm in the market for a set of (2) RL
connecting
cables and a terminator. Anyone with some spares that they'd like an
offer on,
please contact me off-list.
Thanks.
J
More in the interminable drive band discussion:
Further investigation on a statistically insignificant sample shows a wide range of drive band lengths, and the band pulled from a newish tape annd used (successfully) in the old tapes was the longest.
I am now wondering if the problem may have more to do with surface degradation and "glazing" lowering the friction between the drive belt and the tape.
A possible test of this hypothesis would be to use "Rubber Renu" on an old tape band and see if the issue is resolved.
Before I do that, I wanted to get some more input. I'm not sure of the composition of the drive bands, or whether "Rubber Renu" (main ingredient: Methyl Salicylate) would be injurous to the tapes in the small quantities that would remain on the band.
Hi Folks,
Do any of you have any manuals, particularly maintenance manuals, for
the IBM 3380 DASD and 3880 controller in your collection, that I
would be able to borrow (or read on PDF) at point in the future?
Norm Aleks and I have a few of these that we would like to spin up
one of these days, but no docs for them. (I don't have the specific
sub-model numbers at hand right now, unfortunately).
There are a few docs up on ebay now, in Chile, un-bid upon, but the
shipping will be way pricey. So, I figured we'd best ask around
before paying 30 bucks per lot to ship these up from Santiago.
Thanks
Brian
