That looks like a pretty fun project to build. My DIY skills are limited and I would have someone build it, like you did. I like the fact that the 12AU7 is used, as that is a very common and easy to find tube. It's fairly inexpensive, too.

When you get it, let us know what you think!

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"Nothin' up my sleeve. . ." --Bullwinkle J. Moose