Built from a discarded woodworm infested plywood subwoofer speaker presentation box found at a junkyard. All eaten out tunnels filled with a mix of sawdust and glue .The cone face-plate is from a ceiling fan body .Piezo is directly under the bolt but inside the upturned cone bowl .Resonator cone has a hole for the support wood dowel glued to the body underneath and on which the piezo is resting on at the top end .
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Comments
Now that's sweet !!