"Ian Bell" wrote in message
...
http://www.elektor.com/products/book....1594422.lynkx

quote
For years, author Rudolf Moers searched for a textbook about electron tube
amplifiers in order to learn how to design amplifiers using electron tubes,
given that one has a reasonable knowledge of analog electronics.
unquote

What a conceit! given that there are no end of books on designing amplifiers
using valves around.

David.