Underwater Microphone (Hydrophone)

Step 7 Done

Now you can test out your hydropne, its not exactly research quality or anything but it does work, you will also want to make some sort of weight to hold it under water as it does want to float.
A key ring with some old keys works great.

Comments

[belgvr]

would be great if you put some example audio of what you have got :D

[fib3roptix]

Im making one like yours right now..