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Al Kossow
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Al Kossow
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Yesterday,
06:32 AM
Al Kossow
replied to a thread
Tektronix 4107 service info/schematic
in
Unix/Xenix/Linux Workstations
you could try contacting vintagetek.org to see if they have the maintenance manual on microfiche, and if they would be willing to scan it for you
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2 replies | 36 view(s)
October 18th, 2018,
05:59 PM
Al Kossow
replied to a thread
With SSDs, does RAM eventually become obsolete?
in
General Off Topic
Some systems had power fail restart options, where the system generated a high priority interrupt which would save the machine state while the caps...
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16 replies | 248 view(s)
October 18th, 2018,
08:55 AM
Al Kossow
replied to a thread
Xerox 6060 docs posted, need help with disk images
in
PCs and Clones
http://bitsavers.org/bits/Xerox/6060
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4 replies | 132 view(s)
October 16th, 2018,
09:05 PM
Al Kossow
replied to a thread
Sears / Kmart (near) free stuff for the Holidays (USA)
in
General Off Topic
Work out the percentages after dealing with warehousing inventory, paying staff, rent, and all of the overhead of federal and state tax burdens....
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44 replies | 2621 view(s)
October 16th, 2018,
09:14 AM
Al Kossow
replied to a thread
Apollo Domain 4500 Computer or similar - any users left out there?
in
Other
It's all volunteer work. There are people currently interested in workstations, so tons of stuff is happening there right now (Intergraph, HP, Sun...
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6 replies | 159 view(s)
October 16th, 2018,
07:53 AM
Al Kossow
replied to a thread
Paul Allen dead at 65
in
General Vintage Computer Discussions
Nathan Myhrvold commisioned the reconstruction, it is in the Intellectual Ventures lobby....
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12 replies | 486 view(s)
October 15th, 2018,
08:43 AM
Al Kossow
replied to a thread
Apollo Domain 4500 Computer or similar - any users left out there?
in
Other
You must not have looked very hard http://bitsavers.org/pdf/apollo It is running in simulation in MAME, so there is software out there.
see more
6 replies | 159 view(s)
October 14th, 2018,
10:22 AM
Al Kossow
replied to a thread
Sears / Kmart (near) free stuff for the Holidays (USA)
in
General Off Topic
Sears sold off Orchard Supply to Lowes Lowes is now killing it. The liquidation sales are going on now in all the stores here. A friend said that...
see more
44 replies | 2621 view(s)
October 13th, 2018,
08:59 AM
Al Kossow
replied to a thread
Intecolor 2400
in
Other
done http://bitsavers.org/pdf/intelligentSystemsCorp/intecolor/999378_Users_Manual_for_the_INTECOLOR_2405_Terminal_Oct1983.pdf <shift><setup>...
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33 replies | 1530 view(s)
October 12th, 2018,
07:21 AM
Al Kossow
replied to a thread
Does anyone have a 3D model of a PDP8e/f/m bezel?
in
DEC
The real ones are die-cast pot metal. The same material as the larger ones on the 11/40->70 and the smaller 11/05 All of them are very difficult to...
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8 replies | 410 view(s)
October 11th, 2018,
08:13 PM
Al Kossow
replied to a thread
IBM 5150 defiled...
in
General Vintage Computer Discussions
THE FLOPPY DRIVES ARE UPSIDE-DOWN! what a maroon..
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14 replies | 732 view(s)
October 11th, 2018,
03:44 PM
Al Kossow
replied to a thread
Floppy disk MFM low-level encoding
in
Vintage Computer Hardware
How do you do error checking of the data using the CRC at the end if you don't deal with a finite record length? And.. you REALLY want to verify...
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16 replies | 635 view(s)
October 11th, 2018,
01:28 PM
Al Kossow
replied to a thread
Floppy disk MFM low-level encoding
in
Vintage Computer Hardware
the subject was discussed here: https://marc.info/?t=137607091900004 https://marc.info/?l=classiccmp&m=137609524004633
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16 replies | 635 view(s)
October 11th, 2018,
01:23 PM
Al Kossow
replied to a thread
Floppy disk MFM low-level encoding
in
Vintage Computer Hardware
Have you looked at these disks with something like the HcX Floppy Emulator tool track analyzer? What created these disks?
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16 replies | 635 view(s)
October 11th, 2018,
12:22 PM
Al Kossow
replied to a thread
Apple WALT on Ebay
in
Vintage Computer Auctions
If Bigmac would have shipped, Apple could have had a Sun-3 class Unix workstation in 1986 ...
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15 replies | 754 view(s)
October 11th, 2018,
08:23 AM
Al Kossow
replied to a thread
Will trade IBM 3191 & Keyboard for IBM 3101 & Keyboard
in
Vintage Computer Items For Sale or Trade
IBM made several generations of terminals after the 3101. A 3151 will be much easier to find.
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2 replies | 191 view(s)
October 10th, 2018,
04:51 PM
Al Kossow
replied to a thread
C on PDP-11 questions...
in
DEC
"what was the first plaform that could handle more than 64KB for C?" The Unix port using the Portable C Compiler to the Interdata 8/32 done...
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4 replies | 322 view(s)
October 10th, 2018,
08:13 AM
Al Kossow
replied to a thread
Floppy Drive Alignment disk info.. maybe this can become an FAQ on this subject.
in
Other
Is there a VCF Wiki? This thread will just be buried in the noise, along with all the rest of the threads on this topic.
see more
9 replies | 349 view(s)
October 8th, 2018,
05:52 AM
Al Kossow
replied to a thread
Seeking info on the Decitek Paper Tape Reader/Punch
in
Vintage Computer Hardware
Unlikely. You're just going to have to trace out the two boards. There is going to be a stepper motor control for the reader, and probably a...
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2 replies | 172 view(s)
October 7th, 2018,
07:59 AM
Al Kossow
replied to a thread
Looking for NS405-A12N
in
Vintage Computer Items Wanted
another bump I bought a NS eval board with a NS455, but the external prom was missing and the cap on the chip was missing, along with all of the...
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5 replies | 986 view(s)
October 6th, 2018,
09:15 AM
Al Kossow
replied to a thread
IBM 3191 terminal repair
in
Minis and Mainframes
I would really encourage you to look at the Beaglebone instead, the work done by Dave Gesswein on the MFM emulator, measuring the time between...
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9 replies | 680 view(s)
October 6th, 2018,
02:15 AM
Al Kossow
replied to a thread
1975 'Computer'
in
Vintage Computer Auctions
"The computer powers on and you can see numbers on the screen." Burned into the phosphor, no doubt.
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3 replies | 249 view(s)
October 6th, 2018,
02:11 AM
Al Kossow
replied to a thread
IBM 3191 terminal repair
in
Minis and Mainframes
Have you tried just writing what you read back to a disk to see if it can IML? I was just thinking it may be necessary to put a logic analyzer in...
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9 replies | 680 view(s)
October 5th, 2018,
05:32 PM
Al Kossow
replied to a thread
3274 21C Worth Picking Up?
in
Minis and Mainframes
I was the other bidder. $66 was a good price for a clean Model F kb. They could be used with the Hercules IBM mainframe emulator, but the...
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22 replies | 919 view(s)
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About Al Kossow
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About Al Kossow
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