BUILD: Victrola Style Passive Speaker

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 Home Page : http://tableft.com Facebook: http://goo.gl/Ke5UMM Google+: http://goo.gl/uaxVLk Instagram: http://goo.gl/bbJ4nL Twitter: http://goo.gl/yy3lqm Pinterest: http://goo.gl/ouAmC2 Instructables: http://goo.gl/R7T612 Support the show Patreon: http://goo.gl/GP91bZ Paypal: http://goo.gl/n6fSGx Music: "RetroFuture Clean" Kevin MacLeod (incompetech.com) Licensed under Creative Commons: By Attribution 3.0 http://creativecommons.org/licenses/b... Tool Links: http://goo.gl/3Q6XEk