This is my seconds attempt at making a electrostatic speaker. This one I put some effort into making it work well, as apposed to working at all. Learned a lot from building these. The stators are made of aluminum tape on PCB,s instead of aluminum foil ...
Project 105 - Build an ESL
ER Audio 440 ESL Electrostatic Speakers DIY kit - one pair | Reverb France
Vitalstates - electrostatics
The wire electrostatic Loudspeaker page - Introduction