Electronics engineering design modification

Hi! I'm looking for someone to design a modification to an off the shelf product. Basically I need a set of headphones that I can use to listen to the output of a very high impedancfe sensor. I am expecting that we can use a set of off the shelf headphones with active noise cancellation, and modify the circuit to have a very high imput impedance.

I can send samples of the off the shelf headphones I want to use. I haven't pulled them apart yet, but basically someone needs to:

1. Pull apart a set of headphones

2. Reverse engineer the circuit's input stage to work out what the impedance is when the unit is "on"

3. Work out if we can do it with just a resistor change or if we need to put in more active components

I am an electronics engineer and quite capable of doing this myself, I just want to gain the experience in outsourcing it and form a relationship with someone who can do other electronics design work, including PCB layout, schematic entry and so on. This is a fairly simple project so it's a good one to test with.

Thank you!

Compétences : Génie Électrique, Electronique

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Concernant l'employeur :
( 1 commentaire ) South Turramurra, Australia

Nº du projet : #1075475

Décerné à:


Hi! I can do you want. I have big experience in difficult PCB routing and Schematic. Thank's. Sergej.

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2 freelance font une offre moyenne de $200 pour ce travail


Kindly check the PMB.

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