Another little headphone amp.

This time the tube is run on a very low voltage, so I could use a 24V power supply.

tube is an ecc82 as the voltage stage, followed by a mosfet as a cathode follower.

the cathode follower dumps into an lm317 as a constant current sink, that also supplies the filament. ( everything interconnected 🙂 ) To get rid of the dc offset, a cap is needed at the output.

works well, sounds good, looks nice next to my computer.

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