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    Roland, That was quick repair work on your...

    Roland,

    That was quick repair work on your 4010!

    Now its time to start on your 4052 :)

    Please post a photo of the rear of your 4052 - I'm particularly interested seeing that 4-slot backpack,...
  2. Wow - the 4052 and 4010 are in great mechanical...

    Wow - the 4052 and 4010 are in great mechanical condition, no missing keys.

    I was able to get Dave Robert's 4052 working in one day. I replaced a bridge rectifier on the power supply that was...
  3. Roland, Welcome to the 4052 owners group! I...

    Roland,

    Welcome to the 4052 owners group!

    I would love to see a photo of the back of your 4052 - and any stickers - which show factory option codes.

    The 4-slot backpack can hold 4 ROM-packs,...
  4. I just corrected the error and posted...

    I just corrected the error and posted LANDER4050.BAS on my repository:

    https://github.com/mmcgraw74/Tektronix-4051-4052-4054-Program-Files/blob/master/Games/LANDER4050.BAS

    I need to update the...
  5. Roland, You found a bug in my LANDER4050.BAS!...

    Roland,

    You found a bug in my LANDER4050.BAS!

    I ran that version in the 4051 web emulator - and see what the issue is.

    In this version I added four DATA statements in lines 221 to 224, which...
  6. Jos, I believe that may be the best route. I...

    Jos,

    I believe that may be the best route. I think I can find all the parts in your list in the first post.

    Monty
  7. Hi Roland! Please give the Realterm program a...

    Hi Roland!

    Please give the Realterm program a try. I set up Realterm for 4800 7E2 with Xon/Xoff protocol.

    On Dave Robert's new 4052 with v5.1 ROMs, I had no issue loading programs directly...
  8. MattisLind, I misquoted the tape size - they...

    MattisLind,

    I misquoted the tape size - they were 4 1/4" nor 4 1/2"

    My first attempt with simply replacing the 1993 NOS 3M DC100A original drive band with the 4.25" Plastiband was not...
  9. Thanks! I put a little Super Lube silicone...

    Thanks!

    I put a little Super Lube silicone grease on the timing wheel today and think I still have good alignment:

    http://www.vcfed.org/forum/attachment.php?attachmentid=61405&d=1591561262
  10. Checking the internet for slip-ring grease - it...

    Checking the internet for slip-ring grease - it looks like I should use a silicone dielectric grease. I've got a small tube of "Super Lube" silicone dielectric grease that I bought for greasing the...
  11. Tektronix 4041 Thermal Printer repair - may also work on AIM-65 thermal printer

    With my success on recovering all the Tektronix 4041 GPIB Controller System Verification tape files, and repairing NOS 3M DC100A tapes with dehydration, I decided to see if I could repair the two...
  12. Success! I made a copy of the 4041 System Verification Tape!

    I successfully created a copy of the System Verification tape and tested it on my 4041 without the ROM Carrier and Program Development ROMs installed!

    Quite an effort - I received the 15 DC100A...
  13. Roland, I didn't answer your second question -...

    Roland,

    I didn't answer your second question - the ROM carrier has an edge card connector on the back that connects all the ROMs to the 68000 memory bus.
    ...
  14. Roland, Yes, Tektronix targeted the 4041 as a...

    Roland,

    Yes, Tektronix targeted the 4041 as a GPIB controller to automate testing.
    Tektronix also had a product line of modular GPIB test equipment that plugged into TM5000 power chassis.
    ...
  15. I just uploaded all the Option ROM files, and the...

    I just uploaded all the Option ROM files, and the combined 16-bit files to my 4041 github repository. I checked all the individual binary ROM checksums against what my Data I/O reported in 2000 when...
  16. Here is a photo of the Tektronix 4041 Option ROM...

    Here is a photo of the Tektronix 4041 Option ROM carrier tray with all the available Options:

    http://www.vcfed.org/forum/attachment.php?attachmentid=61135&d=1590496922

    There was a Utility ROM...
  17. I spent quite a while today recovering all the...

    I spent quite a while today recovering all the files on the 4041 System Verification Version 2.8 tape.

    Here is the directory listing of all the files on that tape:



    SYSVER 2.8 29-APR-85...
  18. Roland, You certainly can use the 4051 or 4052...

    Roland,

    You certainly can use the 4051 or 4052 as a terminal - you just need to check that the "backpack" for ROMs in the back of the computer has a 25-pin RS-232 connector.

    That means you will...
  19. Tektronix 4041 computer from the early 1980's - WORKING!!

    I had purchased two of these Tektronix 4041 computers in 2000 after acquiring my 4052 computer.

    I thought I would use them as GPIB test automation controllers for a TM500 with relay modules and...
  20. Thanks everyone! I vaguely remembered getting...

    Thanks everyone! I vaguely remembered getting some Plastibands after I posted my question this morning and found them.

    I had ordered the 4 1/2 inch pack on Amazon - and put one on a couple of...
  21. Bumping this thread. I had great success a...

    Bumping this thread.

    I had great success a couple of years ago purchasing NOS 3M 6250 tape cartridge packs - the bands were in great shape, and I used them to recover Tektronix 4051 programs from...
  22. Found the issue with the two CRC tests that...

    Found the issue with the two CRC tests that failed - TYPO on my part.

    Here were the two lines that would lock up the computer



    160 REM DATA "C000FF010000000","6389","U835"
    200 REM DATA...
  23. I have figured out most of the address ranges...

    I have figured out most of the address ranges used by the 4052/4054 Tektronix Diagnostic ROM pack to calculate the ROM CRC's to match the Tektronix ROM CRC list for these computers.

    The Diagnostic...
  24. Looks great! Can't wait! I've received EPROMs...

    Looks great! Can't wait!

    I've received EPROMs and blank PAL and hope to upgrade my DataIO to program big EPROMs too :)
  25. I just scanned and uploaded my manuals for the...

    I just scanned and uploaded my manuals for the TransEra 741-RTC real-time-clock ROM pack for the 4052, and the 4051/4052 Option 10 Printer Interface ROM Pack to my github repository for Tektronix...
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