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Help: Electrical Switcher Project

Discussion in 'Electronic Basics' started by Searcher7, Feb 10, 2008.

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  1. Searcher7

    Searcher7 Guest

    Has anyone ever created an electrical switcher that *mechanically*
    allows one to switch between appliances that run on standard household
    current?(ie: TVs, stereo, computer, ect).

    If not, can I get ideas on what it would take to build something like

    Thanks a lot.

    Darren Harris
    Staten Island, New York.
  2. John Fields

    John Fields Guest

  3. Searcher7

    Searcher7 Guest

    Ok, I was actually looking for something you can plug everything into.
    But I guess that is as close as I can get.

    In a related project I'll need to be able to switch between four(or
    more) rows of 56 pin circuits that will only carry voltages in the
    area of +5V, -5V, +12V, -12V per pin.

    In other words, I'll need to be able to switch from one row of 56 pins
    to the next row in a "break before make" fashion.

    I know there is nothing like this on the market, but I was wondering
    if anyone tried any simular projects.


    Darren Harris
    Staten Island, New York.
  4. John Fields

    John Fields Guest

    There used to be what were called "T-Bar" relays which were form C
    and could switch up to, as I recall, 64 SPDT points per relay.

    Two of those and a little logic would have gotten you what you were
    looking for, as far as the switching goes.

    But what are you _really_ looking for?

    You've stated the voltages you want to switch, but what about the
  5. Searcher7

    Searcher7 Guest

    I've never heard of those before and need to find documentation on

    Is a T-bar relay 100% mechanical in operation? It's only job would be
    to redirected the current.

    The AC will be taken care of by the Tap Switch, and will be done in
    such a way that the AC is cut first *before* the present 56-row is

    And the next 56-row will have to reconnect *before* the next AC
    current direction is established.

    AC = off / 56-row disconnected. Next 56-row connected / AC = on.


    Darren Harris
    Staten Island, New York.
  6. John Fields

    John Fields Guest

  7. Searcher7

    Searcher7 Guest

    Ok. It looks as though I'll just have to design and build what I need.


    Darren Harris
    Staten Island, New York.
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