On Jan 27 2006, 18:28, Zane H. Healy wrote:
> At 5:53 PM -0700 1/27/06, Richard wrote:
> >In article <a06200707c000674f8182(a)[192.168.1.199]>,
> > "Zane H. Healy" <healyzh at aracnet.com> writes:
> >
> >> At 12:00 PM -0700 1/27/06, Richard wrote:
> >> >Well, if I am going to get the latest OpenVMS hobbyist edition,
I'd
> >> >need to hook a SCSI CD-ROM drive up to it. I think I have one
on the
> >> >shelf somewhere.
> >>
> >> It needs to be more than just a SCSI CD-ROM, it must support
> >>512-byte blocks.
> >
> >How can I tell? Its Toshiba SCSI CD-ROM model TXM3401E1
>
> *GOOD* question. I don't see any actual indication. However, after
> some Googling, I found this page http://questier.com/SGI/, since this
> person is using one on his SGI Indigo, I'd say you're in luck.
SGIs have similar problems to Suns, Vaxen, and several other machines,
in needing drives that support 512-byte blocks. That's not quite the
whole story, though. Some CD-ROM drives support a software command to
switch to 512-byte blocks. Some machines can issue that command: later
SGIs such as Indys do, Indigos don't (at least, the PROM doesn't; IRIX
does).
Toshiba XM3201, 3301, and 3401 have a set of pads that can be used to
set the blocksize, and most of these drives don't support the software
command. The XM3601, XM54xx and later do support the software command,
and don't use the pads.
For the 3401 and its mates, you need to look for two pairs of half-moon
pads on the top side of the circit board, towards the right rear. The
halves in each pair will normally be shorted together with a thin
copper trace on the board, for standard 2048-byte blocks. They're
often labelled "0" and "1". Leaving "0" shorted but opening "1" gives
512-byte blocks. "0" open and "1" shorted is what SGIs use for
bootable drives. Suns and Intergraph machines have both open. All the
settings except the factory default gives 512-byte blocks.
The following is from an old SGI hardware FAQ:
+++___++++++++__
|power SCSI |
'0' '1' O=CUT/OPEN S=SHORTED/SOLDERED | 01|
---------- |----------------|
S S Toshiba Default (2048 byte block) | |
S O 512 byte blocks | TOP |
O S SGI ( Bootable ) | OF |
O O Sun / Integraph | DRIVE |
| |
| |
| |
|________________|
DOOR
--
Pete Peter Turnbull
Network Manager
University of York
FWIW, AFAIK & IIRC (I just love abbrev.) the metal-cased Horizon did not
appear until several years after NorthStar made its appearance with its
original model. The wooden case was veneered plywood stained walnut in
color. I don't believe that it was walnut veneer.
The end pieces of the Sol were solid walnut. The story goes that a friend
of one of partners in ProcTech had a wood working business with lots of
scrap walnut available, so the Sol had its 2 side panels supplied in that
wood. The kit version had instructions for finishing the wood with tung
oil.
I still have several Sols (my first computer) and several Horizons (all with
wooden cases). I think Allison has (had?) at least one Horizon with the
metal case. Once I get a round TUIT, I plan on making a walnut case for my
reproduction Mark-8 (the round TUIT being the most critical component and
one I have not yet found).
Bob Stek
Saver of Lost Sols
(should be a bit more active now that I have officially retired)
I recently picked up a PCB for chip scavenging and noted that in addition
to the chips I was interested in, a couple of Altera EPM7192 EPLDs were
mounted thereon.
I'm somewhat ashamed to admit it, but I've never fooled with EPLDs.
Are these things worth tinkering with, or are they hopelessly outdated
technology and best consigned to the dustbin?
Cheers,
Chuck
Listmembers,
This is a forwarded copy of an E-mail I received from a fellow in San Clemente that is looking to sell assorted test and 'classic' computing goodies.
He's taking offers. Please contact him directly.
I DO NOT HAVE THIS EQUIPMENT! Please do NOT contact me about it.
Thanks much.
*********** BEGIN FORWARDED MESSAGE ***********
On 28-Jan-06 at 14:11 Carl Buchanan <carl04 at cox.net> wrote:
>Keithly 196 System DMM?2
>Tektronix Scope T922R 15 MHz Scope 1
>Tektronix Scope 2430A?150 MHz Digitizing Scope with Service Manuals 1
>each Tektronix Scope 2225 Analog Dual Channel 50 MHz Scope with Service
>manuals 1 each
>Tektronix Scope D40 Analog High Frequency Scope with Modules plus
>service manuals 1 each
>Tektronix Scope Module FG501A 2 MHz Function Generator?1 each
>Tektronix Scope Module SG505 10Hz-100kHz Ultra-Low Distortion Oscillator
>1 each
>Tektronix Scope Module 5A22N 1MHz Differential Amplifier 2 each
>Tektronix Scope Module 5A14N 1MHz Four Channel Amplifier Plug-in 1
>each
>Solartron 1250 Frequency Response Analyzer 1 each
>HP 2225A HPIP Think Jet Printer RS232 1 each
>HP 2225A HPIP Think Jet Printer Stand 1 each
>HP 7470A HP 7470A Two-pen Graphics Plotter Red & Black 3 each
>HP 6824A DC Power Supply Amplifier plus or minus 50V at 1 AMP and manual
>1
>HP-85 Computer?with manuals and software and ROMS 1 each
>HP-85 00085-15002 Plotter/Printer ROM 1 each
>HP-85 00085-15003 Input/Output ROM 4 each
>
>HP-85 00085-15004 Matrix ROM 1 each
> HP-85 00085-15005 Advanced Programming ROM 3 each
>HP-85 00085-15012 Electronic Disc ROM Boxed 1 each
>HP-85 00085-15013 Extended Mass Storage ROM 1 each
>HP-87 Computer, manuals and ROMS 1 each
>HP-87 00087-15002 Plotter/Printer ROM Rev B 1 each
>HP-87 00087-15003 Input/Output ROM Rev A 2
>HP-87 00087-15004 Matrix ROM 1 each
>HP-87 00087-15005 Advanced Programming ROM 1 Rev A 2 each
>
>HP-87 00087-15005 Advanced Programming ROM 2 Rev B 2 each
>HP-87 00087-15012 Electronic Disc ROM Rev A 1 each
>HP-87 00087-15013 Extended Mass Storage ROM Rev A 2
>HP 82903A 16 K Memory Module 3 each
>HP 82907A 32 K Memory Module 1 each
>HP 82909A 128 K Memory Module 1 each
>HP 82936A HP ROM Drawer 7 each
>HP 82937A HP-IB Interface 1 each
>HP 82937A HP-IB Interface Boxed 1 each
>HP 82939A HP Serial Interface 1 each
>HP 82939A HP Serial Interface with Option 1 1 each
>HP 82939A HP Serial Interface with Option (001) Boxed 1 each
>HP 3478A 5.5 Segment Digital Multimeter with service manual 1
>each
>HP 8904A Multifunction Synthesizer, DC-600 KHz Service Manuals
>California Instruments 251 TC with 850 T California Instruments
>AC Power Source and controller 1 each
>California Instruments 351 TC with 855 T California Instruments
>AC Power Source and controller 1 each
>Data Precision 6000 & 630 Module Unit with Manuals 1 each
>Data Precision 3600 6 digit Digital Multi Meter 2 each
>Data Precision 5740 Frequency Counter 2 each
>Wavetek 132 VCG/Noise Generator 2 each
>Wavetek 171 2 MHz Synthesizer Function Generator Oscillator 1 each
>Wavetek 180 2 MHz Sweep Function Generator 1 each
>Wavetek 185 5 MHz Synthesizer Function Generator Oscillator 1 each
>Wavetek 21 11 MHz Stabilized Function Generator?1 each
>Wavetek 23 Synthizised Function Generator 12 MHz w / GPIB
>General Radio 1310-A 2 Hz to 2 MHz Oscillator?1 each
>Fluke 7260A Fluke Universal Counter/Timer 1 each
>AC Research Model 412 AC Research Hypot JR with
>ESI 253 LCR Meter 1 each
>ESI Deka-Pot DP111 Varible Resitor 10 K Ohms 1 each
>ESI Kelvin Varley Divider DP1211 Voltage Divider 10 K Ohms 1 each
>ESI Kelvin Varley Divider DP1311 Voltage Divider 100 K Ohms 1 each
>ESI DEKASTAT DS1464 Decade Resistor 1.2K ohms
>
>Hewlett Packard HP 10833D GPIB Cables 0.5 Meter 1 each
>
>Hewlett Packard HP 10833A GPIB Cables 1 Meter 3 each
>
>Hewlett Packard HP 10833B GPIB Cables 2.0 Meter 6 each
>
>Hewlett Packard HP 10833C GPIB Cables 4.0 Meter 2 each
>
>American Reliance P/S PD30-2D Programmable Power Supply 1 each
>
>
>Buchanan Electronics 629 Via Merluza San Clemente CA 92673
>
>Payable to carl04 at cox.net
>Carl Buchanan
>629 Via Merluza
>San Clemente CA 92673
>949.388.9648
>
>
>
*********** END FORWARDED MESSAGE ***********
-=-=-=-=-=-=-=-=-=-=-=-
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?"
I have done some measurements while running XXDP ZR6A??.???.
Although I cannot explain some signals I got the controller working!
First, the S/R flip flop E46 (UB5) gets the reset pulse on pin 1.
On the output (pin 5) is a 'continuous' pulse train, and I also see pulses
on the SET input (pin 4). So going a bit more back on the signals,
I checked the 4-input NAND E5 ... although all 4 inputs (xxx COMBINED ERROR L)
are continuous "1", I see lots of pulses on the output pin 8 ...?
Perhaps I have missed something, but as the 4 inputs are "combined" error
signals, I decided to remove the flat cable from M7904 to the bulkhead.
Don't ask me how that idea came up.
To my surprise, the diagnostic test ran without reporting any error!
I ran all diagnostics (ZR6A thru ZR6E) for several passes, except ZR6C
because one pass needed approx 13 minutes. ZR6D runs for approx 3:15
and ZR6E for approx 5 minutes, but all reported *zero* errors in several
passes.
I have not checked out that flat cable, but now that I have the printset,
I also know from the printset that the flat cable between the M7904 and
the bulkhead should be a BC06R. Also the "red stripe" is clearly indicated,
so I am 100% sure I connected everything correctly.
Time to connect one RK07 drive with termination on the OUT channel.
The .DIR DM0: command still reports the same error, but "something"
happens when I enter the .INIT DM0: command. Then I get an error as
I previously reported. I removed the rear cover, to see the head movement.
On .INIT the head moves fast to the centre, and then back to cylinder 0.
I tried .FORMAT DM0: Again, the 11/34 seems to be hung, but that is
*NOT* the case: I see the head make small steps (hardly visible) ...
it is no hung on the 11/34, the drive is formatting the cartridge!
Finally I get the RT11 prompt, but also a message that the formatting is
aborted due to too many bad blocks.
But is was working, so I tried .DIR DM0: ... no error now, the drive reports
0 files and some 56??? block free! Next I copied a small program to the
RK07. The I entered .RUN DM0:HELLO, and I get "Hello world" on the
terminal! When I try to copy a big file to DM0 I get an output error,
but that makes sense.
I have a few more RK07 cartridges, but I will first run the other diagnostics
that use the RK07 drive. I must thank Tony. Without his replies I probably
would have done nothing for a few weeks. Because he put some of his time in
helping I felt obligated to keep going ...
thanks,
- Henk.
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Thank you for your cooperation.
These are the 4.6 GB magneto-optical drives marketed about 10 years ago by
the now-defunct Pinnacle. We had a few of them and every single one of
them went bad (laser head) in less than a year. Repair costs were
significant and there was a big backlog.
I note that one can still find a few of these on ePay in one of two
conditions; (a) powers up and otherwise unknown and (b) good tested,
warranteed working. The (a) type usually can be had for less than $20 and
the (b) type for $400+.
Here's my question. I have a few old Apex MO cartridges that I'd like to
read, but my curiosity doesn't extend far enough to spend $400-800 to
satisfy. Has anyone had any favorable experience with the (a) type drives
or are they all pretty much non-functional? I'm just trying to determine
if it's worth the trouble.
On a related subject, are there any other drives that will read the Apex
carts?
Cheers,
Chuck
I stumbled (again--that will give you an idea of how well I'm organized) on
a couple cards I didn't even know that I had.
Anyone got any idea of what they're from?
Top view:
http://www.sydex.com/photos/bd_top.jpg
Bottom view:
http://www.sydex.com/photos/bd_bot.jpg
Front view:
http://www.sydex.com/photos/bd_front.jpg
My apologies for the poor quality--I can haul out the tripod and lights if
anyone needs a better photo.
FWIW, on the larger board, most of the transistors are TI 2N404 or 2N504's.
The smaller board has house-numbered WE parts--I'm assuming it's probably
>from some telco switching equipment.
Cheers,
Chuck
Hi all. I'm looking to sell the following DEC stuff:
5 MicroVAX 2000s. All have RD54s, Ethernet, bottom expansion and between
4 and 14MB of RAM. All power up to the >>> prompt. Some boot to VMS, some
don't. The RD54s are questionable, 1 of them seems to be bad.
M1502 bus output interface board, in d|i|g|i|t|a|l packaging
2 PDP-11/04s, bad condition
VAXstation 3100 M30, boots to >>>, Conner 100MB SCSI drive (wiped), floppy
VAXstation 3100 M38 (might actually be M10 in an M38 case), untested
MicroVAX 3100 KA41 (M20 or M20e?), TZ30 tape, RZ23-E hdd, untested
MicroVAX 3100 M10, RZ23-E hdd, TZ30 tape, untested
I may be willing to test these machines for a serious buyer.
MicroVAX II, BA23, TK50, RD53-A, belonged to DEC?, with M3106 DZQ11 x2,
M9047 bus grant, M7555 RQDX3, M7546 TQK50, M7607 memory,
Standard Memories MM-169 w/ 144x HM50256, M7606 KA630
Untested, DC wiring harness not inspected!
Cables:
bc17y-03, 50 pin 3 row male-male scsi? cable - 3 that look OK and 1 with a
bent shell that could be bent back
centronics m to hd68 m, screws
centronics m to hd68 m, clips
Please email me with questions or offers for part or all if interested.
I'll ship the cables and M1502 but the computers are pickup/delivery only
in the Los Angeles area.
-- Adam
