|
This is something I thought up a few weeks ago. Since they were making carbon mics by hand a hundred years ago, I figure it might be time to try my hand at it.
I'll start by turning two wood shapes on my lathe. They'll be rings but have flanges that nest (if that makes any sense). Then I'll screw them together with thin aluminum wedged in between. The flanges should cause the aluminum to stretch tight.
I bought some activated charcoal from an aquarium store. If I pulverize the granules to smaller bits, and possibly heat them to remove volatile chemicals, it's possible I can increase their conductivity.
If I can do the above, and if I can manage to craft a cup to hold the grains against the diaphragm, I should have a microphone. I'll have to run some current through them and use a transformer to recover the sound.
The hardest part will be machining all of the parts.
Ed
_________________
You can't have too much heat sink.
|
Login
Register
FAQ
