Date: Tue, 09 May 2000 11:56:38 -0700
From: Ed Loranger 
To: "Maddog 'n' Miracles" 
Subject: Re: More Resonant Speaker Stuff

I have detailed information on possible
lengths if you change the smaller tube
diameter.  Hopefully I can find my hardcopy.

Smaller 1 inch speakers are found in some
external modems and as microphones for
some older telephones.  Also, Radioshack
sells a 200 mW version that works great
but blows out if you aren't careful around
strong signals.

There is a critical association between the
sphere volume, sphere hole opening diameter,
and the speaker diameter.  

I'll get back to you on the inner-tube changes.
-Ed Loranger WE6W
72/Ed we6w; A-1 OP; SOC#63; QRPL#1068 Santa Rosa, CA
My 2 pennies worth is just common cents.