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T match circuit

Discussion in 'Amplifiers' started by Crusher, Jul 5, 2011.

  1. Crusher

    Crusher Active Member

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    Thinking about doing a T match circuit for input of a 4 tube 572B box. but never did one. Can anyone pont me in the right direction? Thanks in advance.


     

  2. VA3ES

    VA3ES Old Buzzard

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    T-match circuits are typically used for antenna systems that have a wide range of reactances/impedances. Why do you want to use it on the input of an amp? I use a common pi-network matcher on my untuned amp. Works great.
     
  3. Crusher

    Crusher Active Member

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    yeah i can use a couple of trimmer caps. just i seen a few using the 2 inductors and1 tuning capacitor and wanted to try it. trying to save a few dollars in parts.
     
  4. JoeDirt

    JoeDirt Active Member

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    You might be able to get it low enough with just a trimmer cap.
     
  5. wavrider

    wavrider W9WDX Amateur Radio Club Member

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  6. Crusher

    Crusher Active Member

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    Checked link, thanks. Should work great.
     
  7. wavrider

    wavrider W9WDX Amateur Radio Club Member

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    Good deal let us know how it turns out.
     
  8. paws264

    paws264 Active Member

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    I thought that T-network were primarily High Pass Filter; shows you what I know....

    Electrically, in your application, the "T-Match" is a paralled tuned circuit that will be fed with a Capacitor that is tapped somewhere down the coil.

    Stick with the tried and trusted Pi-network.

    .
     
  9. Crusher

    Crusher Active Member

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    yeah, sticking with pi circuit. Seems way simpler and more straight forward
     

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