🚀 go-pugleaf

Ack, a speaker with a bit of mirror on it?  In some areas it is possible to
find early Pioneer LDP 1000 laser disc players that have a HeNe laser, 
several red-spectrum surface mirrors, a 10mm x 10mm beam splitter, and
a pair of galvos with surface mirrors attached.  These little dudes are
used to position the beam on the surface of the disc.  They are about
8 ohms impedance and work quite well when driven from LM386 audio amps.

The LDP 1000's are usually found at surplus places for between 25 - 99 dollars
depending on where you find them.  

I have a little rig that I have built that uses a Macintosh SE as a sound
source, and a delay pedal(from my electric guitar) to display all kinds
of neeto patterns.  

Don't expect a lot of bandwidth out of the galvos. Above about 500Hz, they are
worthless, nonlinear, and given to making like fuses if driven too hard.

For my $99 it's been a heck of a lot of fun.  Your milage may differ.

- Brian

	bldrnr@apple.com