EMI-LPF Filter for the headsets or microphones

Hello everyone. Here is my another project for headsets or microphones. It’s an EMI-LPF filter.

EMI-LPF filter
EMI-LPF filter

It’s a complete and finish device which you can use to protect your microphone against the EMI. There is a simple circuit for the EMI filtering and also has a LPF (Low Pass Filter) which rejects all frequencies below 300 Hz.

You can make it or buy in my ebay store


Alex K6VHF

One thought on “EMI-LPF Filter for the headsets or microphones

  1. Hi Alex K6VHF,

    This project is no longer available on ebay. Can you inform the value of the components?


    Fernando – PU2PLL

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