What size pot? or not.

Discussion in 'The Workbench' started by junk notes, Mar 26, 2020 at 6:20 PM.

  1. junk notes

    junk notes Well-Known Member

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    I have a project and do not know how to do the math. (9v battery radio)
    What size pot can I use (something like a rheostat) that only needs to handle 12v or less, (9v continuous - 12v max).
    Or, do I just go to the home improvement store and buy a light dimmer for several dollars?

    It will go between the low voltage circuit to control a transistor radio speaker (8Ω-2w)
     
  2. ampmadscientist

    ampmadscientist Well-Known Member

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    I think it's called an L-pad.
     
  3. junk notes

    junk notes Well-Known Member

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    Alright.
    [​IMG]

    here is a simple layout.
    In the diagram t 'Amp' represents the transistor radio's circuit board red and black speaker wires coming off - going the to the tiny speaker. It looks simple enough to cut the wires and splice in the L-Pad in line as it shows.

    Thank you, appreciated. This should work, and was what I was trying to achieve. I knew there was something, did not know terminology. Will post results after install...

    What happens when you are Bored-19.
     
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  4. ampmadscientist

    ampmadscientist Well-Known Member

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    Be sure to boil any parts you buy till sterile.
     
  5. junk notes

    junk notes Well-Known Member

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