BUILD: Victrola Style Passive Speaker

Описание: A victrola style passive amplifier for a cell phone. I'm getting an 11db increase in volume from across the room, more bass and a bit of reverb, all completely unpowered.

• Cone is made from 2 file folders joined with CA glue, and coated with truck bed liner

• Tube is a 2" p-trap with a 2" thread adapter and a 3in flush fit cap, painted with hammer texture paint and then metallic oil-rubbeb bronze

• Mounting bracket is 5/8" aluminum flat stock

• The back plate and phone slot are just from some scrap 2"x10" pine I had lying around.

P.S. I apologize for the dizzying painting sections. Lesson learned I guess. holding camera + 20x speed = obnoxious

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Music:
"RetroFuture Clean" Kevin MacLeod (incompetech.com)
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