Finished building my Millett Hybrid headphone amp

[BradJudy]

I finally sat down and built my Millett Hybrid headphone amp this week/weekend. I'm pretty happy with how it turned out:

Pre-casing:



All wrapped up:



BTW: The orange glow isn't just the tubes, I have orange power indicator LEDs under the tube sockets to increase the effect.

[curtis]

Wow Brad!!

That looks very nice! How many hours did it take you to build?

[BradJudy]

Thanks Curtis. I don't really know how many total hours it took. It's a pretty easy build and I'm using an off-the-shelf power supply, so I didn't have to build it.

[curtis]

I see some solder....so I figure some of that was involved.

Just did a quick google and see that you can buy the board, but is there somewhere you can buy the entire kit? I also see that a fully built amp sells for $650!

[BradJudy]

This is the place for info on the MH: http://www.diyforums.org/

If you stick to standard parts, it's about $70-80 for the board and components. Then there's the cost of the case and jacks, probably another $30+. Power supply can be anything from $12 (cheap wall wart) to $80 (fully populated STEPS power supply). In the end, at least $150 in parts total, much higher if you go with fancy stuff in fancy cases.

There aren't any full kits available that I know of, but that website has a bill of materials that includes part numbers from both digikey and mouser. If you're interested in building one, I can help you with picking or ordering parts.

[bikeman]

You just gave my Audio Alchemy and I an inferiority complex. Thanks, Brad.
Nice work.

David