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Thread: Tektronix 4052/4054 Multifunction modules available.

  1. #11
    Join Date
    Jul 2012
    Location
    Switzerland
    Posts
    124

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    Here they are...

    TekMFM1.jpg

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

    TekMFM2.jpg

    They are functional, for the RTC part and at least the first 4 ROM images. My eprommer doesn't want to program the 1M Eproms, broken pindriver or something, have to check. I also have not yet received the components ordered, that is why there is a DS12887 RTC module instead of the DS12885 RTC chip ( a DS12887 is a DS12885, potted up with a surprisingly small battery and a 32KHz chrystal). Serial not yet tested, also due to lack of components...

  2. #12

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    Looks great! Can't wait!

    I've received EPROMs and blank PAL and hope to upgrade my DataIO to program big EPROMs too

  3. #13
    Join Date
    Jul 2012
    Location
    Switzerland
    Posts
    124

    Default

    Looks like you will have to wait some more.....

    The DS12885's I received after 5 weeks wait were fake ( some odd memory chip inside...)
    The other Chinese outfit send me 74ls90 instead of 74ls590......

    Ready to give up on Chinese part vendors and just sell the boards !

    Jos

  4. #14

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    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

  5. #15

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    Saw this 24k 4051 memory board on EBay. https://www.ebay.com/itm/48pcs-TEKTR...Y/353117861256

    Not really related to multifunction boards. But at least a good spare board for 4051 owners. I probably would have bought it but shipping from US is to expensive.

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