audio amplifier

Quick Tip: Make a Guitar Practice Amp for Under

Quick Tip: Make a Guitar Practice Amp for Under $35

By Gareth Branwyn

Gareth Branwyn

Gareth Branwyn is a freelance writer and the former Editorial Director of Maker Media. He is the author or editor of over a dozen books on technology, DIY, and geek culture. He is currently a contributor to Boing Boing, Wink Books, and Wink Fun. His free weekly-ish maker tips newsletter can be found at garstipsandtools.com.

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Turn a guitar headphone amp and a vibration speaker into a decent practice amp.

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How to Hack a Talking Chewbacca Mask

How to Hack a Talking Chewbacca Mask

By Gareth Branwyn

Gareth Branwyn

Gareth Branwyn is a freelance writer and the former Editorial Director of Maker Media. He is the author or editor of over a dozen books on technology, DIY, and geek culture. He is currently a contributor to Boing Boing, Wink Books, and Wink Fun. His free weekly-ish maker tips newsletter can be found at garstipsandtools.com.

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John Park replaces the fixed audio chip on his Chewie mask with a programmable one. Hilarity ensues.

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Upcycle Glass Spheres into Unique Speaker Enclosures

Upcycle Glass Spheres into Unique Speaker Enclosures

By Jeremy S Cook

Jeremy S Cook

Jeremy is an engineer with 10 years experience at his full-time profession, and has a BSME from Clemson University. Outside of work he’s an avid maker and experimenter, building anything that comes into his mind!

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If you were to create a speaker enclosure, conventional wisdom would have you starting with medium density fiberboard (MDF), or, possibly, some other wood product. Ryan Sweeney, however, decided instead to use a thick glass cylinder for each speaker, mounting them with cut bamboo. The idea for this came to him while he was working […]

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Projects with Ryan Slaugh: Simple Amplifier

Projects with Ryan Slaugh: Simple Amplifier

By Ryan Slaugh

Ryan Slaugh

Ryan Slaugh is a hardware and software engineer with over 15 years of experience designing and building different systems. While he has a few college degrees, his best training came from growing up on a farm and working with his father who was also an electrician. Ryan works regularly with woodworking, metal work, electronics, and software. Ryan also has a love of tools and collects as many as he can.

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Building upon my last video, I’ve decided to make a simple circuit using some op-amps.  One is the general op-amp LM741. The other is a specific op-amp, LM386, that is designed for audio amplification. This circuit can be used to amplify microphones or be used as a circuit sniffer depending on what you connect to […]

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