6 of 6 people found the following review helpful
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This review is from: Tubes and Circuits (Paperback)
I never thought I'd have to say this, but it spends TOO long on the fundamentals. Out of 268 pages, 148 cover elementary phyiscs and electronics, starting with stuff like speed, velocity, force, and work. It eventually gets up to a fairly lengthy discussion of the construction of valves, even going on to cathode chemistry and solid state conduction, and the potential distribution inside various valves. Interesting, I suppose, but practically useless.
Finally on page 149 he gets to the good stuff -some basic valve circuits, but it's a whistle-stop tour that lasts 55 pages. Power supplies get a whole 7 pages.
Then he presents his pride and joy -a couple of OTL projects (although the interior photos look distinctly amateur -all rats nests). Also a simple tube tester is included. I wouldn't dare connect my speakers to one of his OTLs mind you; they have no offset protection at all.
Anyway, it's a weird book. It seems like a beginner's physics/electronics book that suddenly has a couple of exotic tube amp circuits bolted on the end! With precious little valve electronics in the book, it certainly is NOT "the most up to date and comprehensive vacuum tube design book currently available."
And all his battery symbols are backwards.
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Initial post: 11 Jun 2014 09:32:48 BDT
Agree with the remarks made in this review. And as is said, the pictures are indicative of certainly sloppy and potentially unsafe design practices. I wouldn't want such an amp in my house.
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