If you want a respectable, easy to build, low power tube amp kit, look
at the Velleman kits. They are well-designed and have good output
transformers.

For the most part, when you buy a tube amp, you are buying transformers
and engineering. Everything else is of comparatively minimal cost and
effect.
--scott

--
"C'est un Nagra. C'est suisse, et tres, tres precis."