rat repeller

Discussion in 'Homework Help' started by kenjei, Dec 30, 2005.

  1. kenjei

    Thread Starter New Member

    Dec 30, 2005
    2
    0
    hi!

    i wander if anybody here can help me find a rat repeller circuits that works. or anyone that can give me a circuits (schematic diagram) that works so i can build one(device)?
    thanks a lot...

    best regards!!!
     
  2. hgmjr

    Moderator

    Jan 28, 2005
    9,030
    214
    Hi kenjei,

    Here is a schematic for an Ultrasonic Pest Repeller circuit.

    hgmjr
     
  3. beenthere

    Retired Moderator

    Apr 20, 2004
    15,815
    282
    Hi,

    Some years ago, we were visited at work by mice. We used a deflection transformer (7.5 kv out) to do the trick. We circled a center electrode with coax braid and put bait on the electrode. One mouse actually jumped 15 feet when he shorted across the electrodes.

    It's a bit dangerous, but you don't have to empty the trap.
     
  4. kenjei

    Thread Starter New Member

    Dec 30, 2005
    2
    0
    thanks guys.... may i ask, what specfic frequency that can complete the job/ any other circuits? thanks a lot... it really is a great help.
     
  5. hgmjr

    Moderator

    Jan 28, 2005
    9,030
    214
    The ultrasonic frequency generator linked to in my reply to your post operates between 30KHz and 40KHz.

    hgmjr
     
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