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Building a simple Alternator whine / ignition filter

Discussion in 'Home Brew' started by Moleculo, Dec 18, 2008.

  1. AudioShockwav

    AudioShockwav Extraterrestrial Admin
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    If it is coming in the power cord, grounding and bonding will not stop it.





    73
    Jeff
     

  2. Captain Kilowatt

    Captain Kilowatt Professional Amateur
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    Exactly. That's kind of like saying if you don't like the noise the neighbor's party makes in the middle of the night then where earplugs. Sometimes you just have to cure the source of the noise and not just band aid it. Bonding and grounding works in some cases however in most cases it can be a LOT harder to do it properly than to simply install a single capacitor. I had fuel pump noise in a car at one time. Yeah it was a Ford. I bonded the doors. I bonded the hood. I bonded the trunk. Nothing cured the problem. I then pulled the back seat to get at the fuel pump wires and soldered a 0.01 uF capacitor across the leads and the problem went away.I should have spent that half hour days before.
     
  3. psycho

    psycho Running a special on our rooms!

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    Cost of filter.......$5
    Cost of running over someone crossing the street because you are watching TV while driving...........priceless
     
  4. Truck

    Truck Member

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    Will this remedy fuel pump whine also? I drive a 99 Silverado thx!
     
  5. Beetle

    Beetle Sr. Member

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    Best answer: If the noise isn't coming in via the antenna (see several earlier posts), build one and see.
     
  6. Truck

    Truck Member

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    Thanks
     
  7. Lil'Yeshua

    Lil'Yeshua .......

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    Browning noise filter

    Just got this to take Care of electrical noise in my mobile(y)
     

    Attached Files:

  8. Eireguy

    Eireguy Member

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    Great wtite up.thanks
     
  9. chazrich

    chazrich Member

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    The original poster apparently hasn't been to Radio Shucks in quite a while. One 20 foot roll of 14 guage red hookup wire is ten bucks. You can buy a whole 500 foot roll of 14 guage stranded wire from Lowes for a little more than two small rolls from The Shack and build a whole lot more for less. On the other hand, you can't beat their price on project boxes.
     
  10. Captain Kilowatt

    Captain Kilowatt Professional Amateur
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    Take another look at the original post date. It was made in 2008. You cannot hardly expect prices to stay the same or for posters to constantly update all their posts to reflect changes in prices can you?
     
  11. Lil'Yeshua

    Lil'Yeshua .......

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    Just to let everyone know,this didn't work.
    I have bought and used some ferrite chokes and a metal film cap and ground strap(exhaust pipe)
     
  12. Captain Kilowatt

    Captain Kilowatt Professional Amateur
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    Not surprised. It has been my experience that about 95% of noise in a mobile installation comes in from the antenna.
     
    2 people like this.
  13. va7kmk

    va7kmk New Member

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    why can i not see the pictures you have posted
     
  14. Mudfoot

    Mudfoot Elmer

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    It's an older post and the original pics may no longer be hosted. You'll just see a dead image link instead.
     
    Mudduckmobile likes this.
  15. soulcode

    soulcode Member

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    Mongoose likes this.

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