It's been a countless number of times that I've needed a little amp to drive some speakers from a weak source, and now that I'm full of free time and a closet full of salvaged parts, I think I'm ready.
Example uses would be connecting my phone/iPod to a pair of 8Ω speakers, or connecting my TV to both those 8Ω speakers + some ceiling speakers that are of unknown impedance.
My plan is to pretty much have a headphone jack input, and both a left and right output, powered by batteries, perhaps with three pots for Volume, Treble, and Bass.
Some parts I have within my reach that I think may be relevant are:
**broken link removed** - Quad Ground Sense Op-Amp
**broken link removed** - Dual Ultra Low-Noise Wideband Op-Amp
**broken link removed** Pre-Amp Transistor
.. and parts from printers, scanners, drives, vacuums, and an old Home Entertainment Stereo system.
Any help would be appreciated.
Example uses would be connecting my phone/iPod to a pair of 8Ω speakers, or connecting my TV to both those 8Ω speakers + some ceiling speakers that are of unknown impedance.
My plan is to pretty much have a headphone jack input, and both a left and right output, powered by batteries, perhaps with three pots for Volume, Treble, and Bass.
Some parts I have within my reach that I think may be relevant are:
**broken link removed** - Quad Ground Sense Op-Amp
**broken link removed** - Dual Ultra Low-Noise Wideband Op-Amp
**broken link removed** Pre-Amp Transistor
.. and parts from printers, scanners, drives, vacuums, and an old Home Entertainment Stereo system.
Any help would be appreciated.