Parabolic Microphone for my Bionic Ear Amplifier Circuit

I made a partial parabolic dish(Because I have been unable to get my hands on a Full Parabolic Dish) for use with my bionic ear amplifier circuit. What you hear with this device is incredible. I'm currently looking for an even larger TRUE parabolic bowl/dish. Ideally a WOK. Considering how well it works using a partial parabolic dish, I can only imagine how well a TRUE parabolic dish will work!

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