Between skiing and trying to get over the resultant and inevitable cold, my weekends have been severely lacking for airplane building time lately. Happily, I did manage to get a little work done today while staying home from work trying to recuperate.
I bought this little low-profile speaker at some point, with the intention of using it as my cabin speaker. Not everybody puts a speaker in (after all, you can't hear it in flight) but I find them useful for listening to ATIS and so forth before starting the engine. Plus, if I have a working cabin speaker I can verify my radio audio wiring without having to make a decision about where I want to put my headphone jacks just yet.
Where was I… oh yeah. I made this little speaker bracket out of a piece of scrap alclad from my junk pile:
The bracket is riveted to the underside of the F-705F channel, slightly to the starboard side of the flap motor housing. I soldered a few inches of wire to the speaker, attached a molex connector, and screwed it to the bracket. The speaker is hidden, but should be easy to hear once I finish wiring it.
By the way, to make this bracket I used my Harbor Freight bending brake, which works 100% better since Scott used his milling machine to round off the sharp corner on the nose of the die. Thanks Scott.