Thanks! great idea..
Blind Doughboy said:
You can by reso cones from Continental pretty cheap (often on ebay).
A reso cone needs a soundwell (inside the box) to truly have the reso sound. The idea -- formulated years ago by the Dopyera brothers, inventors of the Dobro -- was that the cone did not touch the top of the guitar (which deadens the sound you seek in a reso).
A soundwell can easily be made from a small aluminum pie pan. Just chop out the bottom and drill a few holes around it (in the sides of the pan). Glue in some standard guitar kerfing for the cone to sit on. Use a 6" ukelele-size biscuit cone on your typical CBG. Whole thing shouldn't cost you more than about $25 . . . and you'll have a pretty authentic reso sound.
Volume increases dramatically when the cone doesn't touch -- or isn't attached -- to the top of the box.
Here's my list of reso cone makers (see below). It includes international makers as well. If you find some new ones, let me know. I keep my listed posted on CBN in the "Useful Links" list in the discussion group called " Home Made Resonator Boxes 101"
Resonator Cone Makers/Sellers