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Thread: Tektronix 4054 troubleshooting

  1. #11
    Join Date
    Jun 2012
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    Well done Monty. You are now the world expert at repairing Tektronix 405x equipment !

    Nice job though...

    Dave

  2. #12

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    Many congrats indeed, Monty! That Vipers program is pretty impressive; does it run on the 4052 (presumably scaling down the resolution), and is there a listing somewhere?

    Love the periphs too -- I've been looking for a few but no luck. Strangely, I found have a manual for the hardcopy unit along with my 4052 docs, which suggests it originally came with one. Looks like the HCU was scrapped/lost before the '52 went into storage.

    --Roland
    "END OF LINE" [MCP, 1982]
    "An admin that isn't a bit hackerish is just the guy mopping up the keyboard" [Phrack V0b I3f P12]
    "Any appearance of danger is simply a device to enhance your experience" [Futureworld, 1976]

  3. #13

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    Quote Originally Posted by GanjaTron View Post
    Looks like the HCU was scrapped/lost before the '52 went into storage.

    --Roland
    Had a possibility at the time to pick up such a HCU, but didn't.
    No big loss, as it uses completly unobtainium photgrapic paper.
    It does sport a single line special CRT, which I would have loved to see.

    Jos
    ( Still some 10 diagnostic modules available )

  4. #14

    Default Tektronix 405x GPIB Flash Drive

    Quote Originally Posted by GanjaTron View Post
    Many congrats indeed, Monty! That Vipers program is pretty impressive; does it run on the 4052 (presumably scaling down the resolution), and is there a listing somewhere?

    --Roland
    Vipers program listing is in the emulator github programs folder.

    Tektronix 4051,4052,4054 AND Tek 4051 Emulator Viper Program link

    I’m thinking about designing a GPIB FLASH DRIVE program storage accessory to our 4051/4052/54/52A/54A machines since the tapes are so problematic, and the MAXIPACK only works with the 4051.
    And since not everyone has the backpack with serial option.

    GPIB advantage is it is on all the 405x series and all the BASIC programs will support it without needing an option ROM.

    My thought is to have the device respond to the 405x BASIC commands for the tape drive (TLIST, FIND, OLD, SAVE, MARK, etc).

    Someone on the web has a 5V Arduino Uno board directly connected to a GPIB connector - that works as a GPIB controller.

    However - the Tek 405x is the controller and cannot be used as the device.

    I have all the Tektronix 405x GPIB manuals - that include HW and 6800 assembler code for the tape interface with flowcharts for the logic.

    There are also Arduino shields with MicroSD flash cards and libraries for the FAT and FAT32 file systems.

    Monty
    Last edited by nikola-wan; June 4th, 2018 at 08:12 AM. Reason: Added more detail on my idea of a Tektronix GPIB Flash Drive

  5. #15

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    I started a separate thread to discuss my idea for a GPIB device for the Tektronix 4051, 4052/4052A and 4054/4054A computers to save and restore files:

    Tektronix 405x GPIB Flash Drive

    Monty

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