I once self-made one by extracting the mic capsule
from a 25€ hand-held PTT-mike (the type used with ground
VHF units) and wiring it to the mic harness of the
radio (Becker AR3201). It was cheap and perfectly functional.
You need some soldering skills though, and you may
want to insert it in the panel in a presentable fashion.
I had glued the capsule behind a hole on the back of
the panel, and glued a black round metal grille on
the front (this latter taken from a discarded walkman
headset's earpiece!). If you want to see the effect,
go to www.segelflug.de on the segelflugzeug-testberichte
page, find the LS7WL test report and check the picture
where my instrument panel is (the one with a Filser
DX50 on the top row): the home made mic is on the right
hand of the panel at mid height. Good luck!







At 14:06 28 September 2004, Ludovic Launer wrote:
Yes, thanks, that's just the one I had in mind.
I was wondering if anyone was using a more 'off the
shelf' component
though...


Try this:

http://www.md-flugzeugbau.de/flymic.html