Electret microphone

[Project homepage](https://github.com/jonnor/projects/tree/master/printable-electronics)

[Demo video on Youtube](https://www.youtube.com/watch?v=UtWn3Vl2V2k&feature=youtu.be)

Has body diameter of 20.5 mm (13/16 inch), same as many commercial elecret/measurement microphones.
For compatibility with accessories etc.

Vitamins required:

- 1x 9.5 mm electret microphone capsule
- 1x 1uF-100uF capacitor. Polarized OK
- 1x AA battery

For usage, hook up with jack cable (6.3mm 1/8inch) to a mixer/recorder/sound-card **with preamp**.
Future versions might include an integrated pre-amp circuit.

[Suitable mic capsule](http://no.farnell.com/multicomp/mckpcm-97h67-40db-4809/microphone/dp/1758435)

Designed for printing with ProtoPasta Conductive PLA. *Dual-extrusion not required*. Will probably work with filaments with less resistance as well.
Alternatively, one could use single-core copper conductors ~1.5mm diameter put into the channels manually (soldered to components)