Want for free

Does anyone have BROKEN audio adapter like this one
21esDL3HKTL._SL500_SL135_.jpg
That they would be willing to donate to me for the sake of reverse engineering. I am skilled with a soldering iron and have printed my own PCB's before. I think one of these adapters could be replicated for a lot less than what they are selling them for.
 
the theory of operation is simple.

A preamp with the ability to defeat the AGC on the camera.

Wit the use of the Magic Lantern firmware on your T2i you don't need the AGC cancellation, you an tweak that with the firmware.. then any preamp will work... so any preamp design you find on the net will suffice. But your still better off buying something, in fact, I have a preamp you can buy cheap. Or better yet trade me.. .PM me and will talk.
 
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