Great instructable from EvanKale:
In the case of an apocalyptic event, and you don’t have an amplifier because Immortan Joe took all the amplifiers, then you need to know how to build yourself an amplifier!
In this Instructable, I’ll guide you through the process of constructing an amplifier from scrap components, and show you where you can salvage the material you need.
This amplifier can be powered by a 9V battery or DC power, and the size of it makes it a wonderful travel amp.
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