Recent content by Lewis R

Thanks for the tip on the Radio Shack electret microphones. So I bought two microphones and removed their electret diaphragms, but I was disappointed to find they did not exhibit any noticeable attraction or repulsion to each other or to anything. Perhaps because the opposite sides of the...

I am interested in buying or making an electret - preferably the oriented dipole version - not the probably more common real or surface charge version. I have read about the old procedure of making an electret from a mixture of beeswax, carnuba wax and rosin, but I think that by now there must...