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COMPLEX SOUND CHIP 76477

Discussion in 'Electronic Projects Design/Ideas/Reviews' started by MrDEB, Feb 20, 2016.

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Any interest in boards

  1. Sdip adapter board to adapt from 1.77 pitch to 2.54 pitch

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  2. A 3 "x 4" aprox PC board for a complex sound circuit using a 76477 chip and a 555 chip

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Multiple votes are allowed.
  1. JonSea

    JonSea Well-Known Member

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    Who did you order from originally?

    And what shipping did you use? If you want boards in a predictable period, DHL Shen Zeng is the most reliable way. I have been receiving boards from Elecrow in a week.
     
  2. MrDEB

    MrDEB Active Member

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    I used the cheapest shipping and ordered from smartprototyping.
    My mistake was perhaps selecting the cheapest shipping. I have purchased from Elcrow and should have done this order as well. Two mistakes
    going to place an order with Elcrow asap. been busy building recumbent trikes and a new patio.
     
  3. JonSea

    JonSea Well-Known Member

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    Smart Prototyping does a good job too.

    The cheap shipping isn't much of a bargain.
     
  4. dave

    Dave New Member

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  5. MrDEB

    MrDEB Active Member

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    You hit the nail on the head!!
     
  6. MrDEB

    MrDEB Active Member

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    Well in today's mail I received a yellow envelope that was mailed some 50 days ago from overseas.
    My circuit boards have arrived!!
    now I guess I need to unpack my soldering iron and components to assemble one board.
    After I get one fully functional I plan on selling off the remainder of the boards and the adapter boards.
    But first test a board for continuity and shorts against the schematic.
     
  7. MrDEB

    MrDEB Active Member

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    well finally getting around to assembling this project. just out of curiosity I am posting two images of the schematic. one is jpeg and other one is bit map. both set at 300dpi.
     

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