Portable Audio & Video

DIY Bluetooth Frankenphones

DIY Bluetooth Frankenphones

When Sarah Lemarié’s Logitech Bluetooth headphones snapped in half, as they are apparently wont to do, she did what any self-respecting hardware hacker would do: she mashed them up with a pair of corded phones that she liked to create her own set of wireless Frankenphones. Project: Wired to wireless headphones – Link Related: Bluetooth […]

RC4560-based headphone amplifier

RC4560-based headphone amplifier

This SMD op-amp project uses the TI RC-4560 dual op-amp chip and a salt water-etched PCB. The builder got the op-amp as a free sample from Texas Instruments and scavenged all of the SMD resistors from old hard drive electronics. The results are not pretty, but they’re functional. The circuit used (with some changes) is […]

More mint-tin amp action

More mint-tin amp action

Michael O’Brien, a.k.a. Turbotron, has posted pics of this project to the MAKE Flickr Pool. It’s a mint-tin amp based on the LM386 chip, the same op-amp chip used in the MAKE Mousey the Junkbot and Cracker Box Amp projects. The case is an Altoids box, painted gloss black enamel, the grill is from a […]