September 17, 2009 / amdepass

Old Space Heater turned into a Powered Portable Speaker

speaker front speaker back

They don’t make em out of bent sheet metal like they used to! I hadn’t decided what to do with it at the the time, but they one day it dawned on me that it would make one cool portable sound system.

And so I gathered up some materials including an old car speaker and a 9v battery powered amplifier/speaker from the local shack. Modifying the heater was as simple as taking out a few screws to remove the old heating element, popping open the portable amplifier, soldering the car speaker to the amplifier board, and then mounting everything inside the heater. One thing I will add later is a nice knob to adjust the volume without opening the heater.