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  1. Here they are... 60931 ..and another pic...

    Here they are...

    60931

    ..and another pic with empty PCB and 3D printed casing...

    60932

    They are functional, for the RTC part and at least the first 4 ROM images. My eprommer doesn't want...
  2. Thanks Monty ! PCB's are due in soon ...

    Thanks Monty ! PCB's are due in soon ...
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    Damn, will have to find another victim to buy my...

    Damn, will have to find another victim to buy my 2nd 4052....

    PM send...
  4. That's 9 roms... which one will you leave out ?

    That's 9 roms... which one will you leave out ?
  5. Tektronix 4052/4054 Multifunction modules available.

    So I created a mutifunction module / ROMPack for the Tektronix 4052/4054

    - This covers the ROM-expander (Tektronix 4050E01) functionality in that it allows the equivalent of up to 8 ROMpacks ...
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    And some more progress : full pass on theTransera...

    And some more progress : full pass on theTransera RTC test program !
    PCB's are ordered, I'll open a new thread to check for interest.
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    Yes, the weekday calculation is correct for 19xx,...

    Yes, the weekday calculation is correct for 19xx, not 20xx. I guess that it it will not be worthwhile to adapt the code, not enough people left that do anything with a 405x.
    Like the HD146818, the...
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    Progress ! So my prototype can indeed access...

    Progress !

    So my prototype can indeed access the RTC chip, also bankswitching the ROM's seems to work. Here a trial run of my prototype, build upon a badly misused, leftover, diagnostic pack PCB...
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    If you buy it I can help out with key caps and...

    If you buy it I can help out with key caps and digital electronics, have some spare CPU / MAS boards.
    No cover plate I am afraid....

    Jos
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    Thanks for the links, Monty, I should be OK with...

    Thanks for the links, Monty, I should be OK with that. Will probably not need a full decoding of that PLA after all.
    Looks like Transera stuck to 6800 instructions only.

    Jos
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    Diassembly of the RTC code was easy with f9dasm,...

    Diassembly of the RTC code was easy with f9dasm, access to the RTC chip is easily recognized. Is there a list with known entry points in the 4052 code ?

    Dave, my wife tries to persuade me to get...
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    I only have one design a.t.m. : the...

    I only have one design a.t.m. : the Multifunktionmodule with the big eprom and RTC/serial. The simple general purpose board with be a simple modifikation of that, submitting the serial and RTC with...
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    Tek4052/4 generic ROM PCB's

    Any interest in a generic ROM board for the Tek405x machines ?
    If so, would you like it with or without a 0.1" holes "playfield" ?
    Or would you prefer a bare experimental board that fits the...
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    Only kidding Monty ! As you rightly say shipping...

    Only kidding Monty ! As you rightly say shipping these things across the pond is not fun or cost-effective.

    w.r.t. ROM imaging : don´t know how easy it is to read the Patch FPLA : if easy than...
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    So that´s why I cannot find a 4907 : Monty is...

    So that´s why I cannot find a 4907 : Monty is hoarding them all !

    Seriously, any chance of a 4907 firmware dump, if possible a straight dump of the 6800 ROM space ? ( i.e. with the patch rom...
  16. Thread: Overlooked?

    by jdreesen
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    Some more contenders : Datapoint 2200 (1971)...

    Some more contenders :

    Datapoint 2200 (1971) and Cogar C4 (1973), later known as ICL1501.

    Both have dual magnetic storage, CRT screens, full size keyboards, up to 16K of memory and high...
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    Old dipswitches are prone to failure....Check if...

    Old dipswitches are prone to failure....Check if the dipswitch setting with an multimeter.

    Jos
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    Curious as to why metal would be a bad choice ?

    Curious as to why metal would be a bad choice ?
  19. Stefan, hier een scan @ 1200 DPI : ...

    Stefan, hier een scan @ 1200 DPI :

    ftp://ftp.dreesen.ch/SUN_mouse_pad.pdf

    My scanner has difficulties scanning this, and the pad was not in great condition, still needs to be cropped, but there...
  20. Somehow missed this first time around...... I...

    Somehow missed this first time around......

    I have three Depraz mice : 2 red and a grey one.
    On the outside one red mouse is labeled ¨Depraz mouse D83/P¨, the other red is labeled ¨DIGIMOUSE...
  21. You should be able to find the displaymonitor...

    You should be able to find the displaymonitor that goes with it.
    It is rather complete as is, with documentation and software cartrdiges.

    Do you have floppy drives and/or the expansion chassis ?...
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    I do not have a spare 11/34 CPU set ? But sure,...

    I do not have a spare 11/34 CPU set ? But sure, if you / Oscar have a spare set, then why not.

    Jos
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    PDP11/04 BA11-K battery backup question

    I am in the process of preparing an 11/04 that will move to Oscar ( mr Pidp8/11)

    This 11/04 had the battery backup option, batteries themselves of course longe gone.

    So can I just leave out...
  24. Looking for docs on the ICL 1501/43 and 1503....

    Unlikely, but nevertheless : does anyone have hardware docs on the ICL1503, which is an ICL1501 extended with a harddisk controller and bigger display ?

    I recently acquired a boardset for these...
  25. AFAIK the Mostek and Colex boards are identical. ...

    AFAIK the Mostek and Colex boards are identical. My Colex 850 also is in need of repair.
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