I have many 8mm tapes. A few are new. First comers get new ones.
I have a few 8mm cleaning cassettes
I have about a dozen DLT-II tapes.
I have some Ultrium LTO fibre-channel SCSI drives that were removed
from a tape-mounting robot several years ago. I never used them in my
computers. The mounting bracket for one was modified to have an
internal power supply -- which might be inadequate. I have two
Fujifilm 200/400 GB Ultrium 2 LTO tapes.
I have a 5.25" floppy drive.
Any of these are yours for the price of shipping; local pickup is OK
La Crescenta, CA
I have many rl02 disk packs for my pdp 11/34 and 11/05. I have just been
stacking them upright, but that has not been the safest or the most space
efficient. Were any kinds of shelves made for these disk packs, perhaps
similar to 9 track hanging tape racks? Trying to make things look more
Hoping someone here has one and can share a pic, perhaps it is a design i
can duplicate and make with some woodworking tools.
I picked up a VT220 passing by some clean out a while ago.
Green phosphor, powers up and passes self test.
The keyboard has 3 broken function row keys, keycaps.
Free to pickup in North Andover.
Shipping would be heavy and awkward with the CRT.
Sent from Mail for Windows
Some quick questions on fixing up a TU58:
1) Can I plug it straight into a pdp11/23+ CPU with a 10 pin ribbon cable?
2) Can I hook the 10 pin ribbon cable on it into a normal 11/23 or 11/73
bulkhead to get RS232 for hooking up to a PDT11?
3) Can the PDT11 handle anything faster than 2400 baud on the extension
ports? Can it do faster speeds in one direction?
4) Is there any possible use for this thing :-)
I know this is a long shot, but I just acquired an SSM SB1 S-100
board with no chips. Everything on the board is easy to source
but the SSM2000 chip. Does anyone have one for sale or know
where to get one?
This email has been checked for viruses by Avast antivirus software.
Next week I will be in the Huntsville, Al, USA area for an entire day with no commitments. Does anyone have recommendations on how to spend my day? I have been to the space and rocket museum several times. Any computer museums or displays, especially of space-related equipment? Any good surplus stores? All suggestions welcome.
You don't understand anything until you learn it more than one way.
The 11/24 System Technical Manual says that the terminator (M9302 or M9312)
must be installed in the last slot (slot 9) of the backplane, and that all
empty slots must have a grant card. What I am not clear on is what they mean
by an "empty" slot. Specifically, if I have the CPU, the M7134 memory map
and a memory board installed in slots 1-3 and then nothing else except the
terminator in slot 9, does this mean I have to install grant cards in slots
My guess is that this isn't a requirement because the grant cards go in rows
C and D while the terminator is rows A and B, but I am hoping someone can
confirm this for me please?
Syncrotech sent me the demo version of Elan Memory Card Explorer version
3.21 which is matched for use with the Elan P423 PCMCIA Card Reader/Writer
and in the Windows XP environment.
The demo version has 30 days use to try it in set-up mode, but only 5
"lives" in full function mode. To make it work again I may have to use a
backed up version of my Registry, or re-install WinXP, mb drivers, etc.
Previously with Ricoh's XP v1.01 incarnate memory block setting of (E8)
E800-EBFF, the program would start-up and see the Linear Flash Card.
Now with Elan's version 3.21 not only does that memory block not work but
none of the other choices listed in Ricoh's manual which states:
By default, MCE requires the exclusive use of a block of real mode memory at
linear address d0000H to d3fffH. If MCERICOH - XP does not detect the flash
memory card with the default memory block settings, this indicates that the
default memory block is already in use. Try one of the following settings:
(D0) D000-D3FF (default) (E0) E000-E3FF
(D4) D400-D7FF (E4) E400-E7FF
(D8) D800-DBFF (E8) E800-EBFF
(DC) DC00-DFFF (EC) EC00-EFFF
In the Elan MCE op guide which is from 1999 and doesn't completely cover up
to v3.21 from 2005 it states:
XX=base memory address for card operations e.g. "wD8" will use D8000h as a
base address. XX can be C0 to EF for most PCs. Default is D0. The 4K region
from address chosen must be "free".
Lastly in the txt file with the MCE v3.21 installation files it is stated:
* This function now works in the same way for all versions of Windows
* This function should be called before any other (Except
MCE_Customisations). It not only checks memory for use it registers the
memory for exclusive use by our program. It also allows the library function
to initialize ready for card memory accesses.
* Failure to initialize successfully using this function will result in NT4
access violation messages during library function calls.
* The MCE_CheckWindow function does 2 tasks
-It registers the memory window with Windows. A handle to this memory
window is saved in MCELIB for MCELIB use.
-It tests the memory window allocated to check that it is unused.
* Function MCE_ReleaseWindow() can be used to de-allocate the handle.
(when multiple MCE_CheckWindow()s calls are made use MCE_ReleaseWindow()
before the next MCE_CheckWindow())
* Function MCE_Restore() also deallocates this handle as part of the MCELIB
Used to pass in the memory window address for the PCIC card controller to
use. The value passed in will be used as the memory address in subsequent
card operations. Pass in 00000000H for an automatically allocated memory
window. The window it attempts to use is directly above the PC's system
To maintain compatibility with earlier MCELIB versions the application
software should pass in D0000H instead of 0H to this function call.
Note that only 4000H increments should be used.
Possible range from C0000H to EC000H or any free address above 100000H.
A memory block of size 4000H is reserved with Windows and tested by the
MCELIBfunction for suitability.
Showing my absolute ignorance here, without a chart showing the blocks of
memory I can try I'm lost.
I have scoured Synchrotech's website, no answers there. I found the old
Elan FAQ pages saved at the Wayback Machine but no answers there.
Searching the "web" for memory address block settings in XP didn't seem to
turn up what I was looking for either.
Thanks for indulging me once again.
Does anyone have the spec sheet for the Dysan 208-21 alignment disk, or
know what drive it's intended to be used with?
I've got the information sheet which comes with the disk, but it doesn't
identify the tracks-per-inch or track count.
It's a 5.25in double-sided disk; the info sheet says:
FILE: 208-21 PAGE 001
Dysan 208-21 (Configuration #802030)
Double Sided Alignment Diskette
Track 0 - Full Revolution (both sides)
Track 1 - Index Burst (both sides)
Track 16 - Index, Azimuth and Catseye (both sides)
Track 33 - Full Revolution (both sides)
Track 34 - Index and Azimuth (both sides)
Full Revolution - recording frequency is 125 kHz
Index Burst - 50us in duration and occurs 200us after index. Recording
frequency 125 kHz.
Azimuth - Four bursts that depicts an azimuth of 12'.
Each burst is 1 millisecond in duration with the first burst occurring
500us after index. The recording frequency is 125kHz.
Catseye - recording frequency 62.5 kHz
Sadly the part number doesn't appear on Accurite's old website (per
archive.org), or the Dysan PDFs I've found on Bitsavers.
About the only thing I've been able to figure out is that it's an Analog