Louisville Soundbuilders

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Might be there the 16th if the creek doesn't rise. It's on a bus line! Last bus home leaves @ 2130 from 5th & Market. Might bring the Djoffe ST120 bias board if anybody has a camera. Not a PCB- point to point on plastic hand drilled. Really primitive and cheap.
 
Attended 5/16/11 Soundbuilders meeting. Thanks gillspice for the notice. The advertised plasma speaker was there and being demonstrated. It was playing synthetic sounds so I can't really determine the fidelity, but I suspect it was rather low. It consisted of an arc 3/4" long being modulated through a flyback transformer by fets. When the arc was teased out to 1", a chlorine smell resulted which lead to the device being escorted to the parking lot for airing out. Not quite as exciting as a capacitor explosion, but in the same realm. The absence of X-rays remains to be demonstrated.
LVL1 Hackerspace has significant capabilities for $14 a month, as long as you have a paypal account. Their most recent acquisition is a(I forget the official name) which acts as a 3D plastic printer. After my whining about having to have 3mm screws shipped in from 200 miles away to fit modern transistors (not really TO3, which fits 6-32 screws), they have an in house store of odd bits, open 2 days a week, right on the 23 bus line. Jose provided a nice tour before the demonstration. They were demonstrating a graphic filter design program for PC's when I left to catch the last bus home at 9.
 
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