![](https://lh3.googleusercontent.com/blogger_img_proxy/AEn0k_uXkEuVki4GPIrTzOOSd7qH3Ki5SJNihWMBlZ6b7p26izAh-rIRR-GFbHJV7Ow05uCECpA6fn3mjjDF3OMNZkQuoS7vNpR8FUNR6s5yHgL8GmZsLyxOMWm2=s0-d)
So I build this headphone amplifier from a schematic because I wanted a headphone amplifier and because it was a simple and well documented online project that I could cut my build-from-scratch teeth on. It uses a tube and solid state dections for amplification, and sounds pretty sweet. I can also use it as a preamplifier to beef up the signal from my iPod when I want to play it through my low-power tube amp. Below, the obligatory "in the dark" shot to show off the tube and my totally gamer blue LED power indicator.
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