BBC Marconi-Reisz Microphone

I modeled this after the type of microphone used by the BBC in the 20's to late 30's. Once you print it off, take an old telephone handset and take the microphone out of it, run some wires through the back of it, connect them to the microphone, and put the microphone in the case with some padding. Put a piece of fabric between the case and the cover, so the microphone doesn't pop out, and for decorative purposes.The electronic part of this could be improved upon greatly, but it suits my needs ju