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  1. Sixxgunn13's Avatar
    Member Since
    Mar 2002
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    1,585
    Apr 3, 2007, 10:12 PM - Chest display circuit board layout? #1

    Does anyone have a chest display circuit board pic? i 'm having a friend make mine but he would like to see what a completed one looks like. i got the schematic off Brak's tutorial site.

    also does anyone know, if the R14-20=220 ohm are 1/4 watt?

    thz
    Last edited by Sixxgunn13; Apr 3, 2007 at 10:23 PM.
  2. Sixxgunn13's Avatar
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    Apr 3, 2007, 10:31 PM - Re: Chest display circuit board layout? #2

    bump up, over double post
  3. Admin Staff webchief's Avatar
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    Apr 4, 2007, 8:48 AM - Re: Chest display circuit board layout? #3

    I seem to remember seeing the schematic somewhere online before... I may have even downloaded it. Let me poke around and get back to you.
  4. Sixxgunn13's Avatar
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    Apr 4, 2007, 7:09 PM - Re: Chest display circuit board layout? #4

    Thx Chief,

    if you can also find a pic of a completed one? so i can see how to layout the circuits..back and front

    Sixx
  5. Member Since
    Apr 2002
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    215
    Apr 4, 2007, 11:39 PM - Re: Chest display circuit board layout? #5

    All resistors used in the circuit are 1/8 watt (1/4 would work fine, but will just be bigger than needed).

    The back of the PCBs have no components, other than the connectors I use. All parts mount to the front of the boards. Sorry, never took pics of the boards (up close), just posted the schematics.

    Good luck on the project though! I've known a few others that have built their own, with good results!


    ATM
    ShackMan
  6. Sixxgunn13's Avatar
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    Apr 5, 2007, 12:40 AM - Re: Chest display circuit board layout? #6

    Thx SM,

    Can anyone post a pic if their chest display?

    thx
    Sixx
  7. mrgr8ness's Avatar
    Member Since
    Oct 2005
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    Apr 5, 2007, 7:34 AM - Re: Chest display circuit board layout? #7

    Doesn't shackman's circuit use a programmed eprom? It should be a very simple program to write. I would have to refresh my programming a bit though
  8. Member Since
    Apr 2002
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    Apr 5, 2007, 6:48 PM - Re: Chest display circuit board layout? #8

    It's a PIC microcontroller. Yes, fairly simple program, except that I had to learn to program in PIC assembly before writing it. Seriously though, with programming experience and a programmer, it isn't that hard. LOT better than using discrete logic chips.


    ATM
    ShackMan

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