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santosp

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Posts posted by santosp

  5. Posted · Edited by santosp

    Hello to all. :)

    I start this thread as to check any interest on an idea that I have recently, which emerged during the working on another project.

    I made a PCB to host as a combo the two Activision bank-switched games, for A7800. This PCB form could be placed on any original A7800 or A2600 cartridge enclosure, contrary to Activision who is specific for its own! ;)

    There two possibilities as regards how someone could using this.


    First as a replacement for any of the two games, using simple an 27C010 Eprom.


    Second as a new combo game cart (Rampage + Double Dragon), using a 27C020 Eprom plus a latching micro switch, which will be utilitarian making a hole in the back plate of cartridge enclosure.

    For this second version specific, I am in cooperation with a good friend here Kevin, as to design a combo decal.


    Everyone will be able to order a complete working PCB with or without combo specification, either the PCB neat with PLD logic on-board plus the needed decoupling ceramic capacitors. Mean that PCB meet full ENIG (gold plated top - bottom) specifications.


    The price for something like this could be 16$ plus 2$ for decal. Shipping cost to anywhere on the world is 7$, as registered parcel with a track number till the end destination.


    OK, as with my previous Commando construction, this is a limited production cartridge offered only within this AA thread. So if you feel that would you like to go it with something like this, please let me know your interest here, as to be able to make all the needed orders on PCB, parts, and decal's.


    Thank you Panos.

    :)


    Special thanks to below helpers on this project.

    trebor

    KevinMos3

    phoenixdownita





    post-23371-0-98041600-1441321366_thumb.png

    post-23371-0-74296500-1441321373_thumb.png



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    Update @ 16/09/15



    post-23371-0-73757600-1442434248_thumb.jpg


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    Update @ 21/09/15


    Finally the pictures of PCB completed and working, plus the decal for this combo version. For upper decal (the smaller) I will print this as it look on second photo.

    Also Kevin let me include his Rampage and Double Dragon version as is till now. That means for each one....


    1. For Rampage, he never finished all of the character sprites, so he removed his incomplete new character sprites and returned them to the original sprites with just a few minor tweaks. The game is still pretty dramatically different looking because of the new buildings, enemies, and title screen.


    2. For Double Dragon he did a sprite/color hack. Mostly filled in the gaps of the sprites to make them solid and also he did some touch-up work (like added glare to the windows in the first level). Last changed some of the colors as well to work with the filled in sprites.


    post-23371-0-45202300-1442863532_thumb.jpg


    post-23371-0-24334400-1442863537_thumb.jpg



    post-23371-0-52243800-1442864710_thumb.jpg


    post-23371-0-29287900-1443427611_thumb.jpg

    Activision Combo Interest.pdf

    • Like 6

  12. Posted

    I have no idea which was the base to draw this back then, :? but I remember two things.

    I had discussed the construction of something like this with Roy (rdea) here, and I had been looking in many designs here and there as to draw it.

    Also some conversations with "zennon" and the author of ARC.

     

    Anyway, not remember, and of course never happen.

     

    post-23371-0-85090700-1438636158_thumb.png

  17. Posted · Edited by santosp

    @Trebor

     

    Ok thanks for the info Robert, :thumbsup: and forgive my ignorance about the threads!! :(

     

    @phoenixdownita

     

    Not for now, but how something like this would be useful? Except if someone need PAL pld to make a new cartridge. In this specific case, I have some pld's spare, coming directly from Kevin Cooper..... if anyone need!! :P

    No really, I am serious about the pld's. ;)

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