Tubes and Circuits Paperback – Jul 17 2012
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About the Author
Bruce Rozenblit is the President and Chief Engineer of Transcendent Sound, Inc., which specializes in vacuum tube audio kits for the DIY audiophile. He specializes in OTL (no output transformer) amplifiers that produce maximum fidelity. He holds a U.S. patent in amplifier design. He has been professionally involved in the audio industry since 1996, a lifelong audiophile and started working with tubes by 1985. This is his third book on audio technology.
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Top Customer Reviews
This one is not for me and above what I expected from author.
This takes a lot of understanding in tubes & circuits to get through this one.
The book is not written for the Hobbyist who is looking for schematics or wiring diagrams.
It gave an insight in the tube and circuits aspect.
Appropriate and fundamental topics
Most Helpful Customer Reviews on Amazon.com (beta)
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 just 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 tube 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.
Perhaps an audiophile, in need of a homemade tube tester and interested in the design and construction of OTL audio amplifiers, would find this book to be a valuable asset; but to those, like me, who simply want to know more about traditional tube-amplifiers (with output transformers), its assets were greatly outweighed by its cost. At $12.95 I would have kept it......but at $32+ I returned it for a refund (which did not include postage either way).
In conclusion: I strongly suggest that prior to order, you carefully study the overview of contents (available on Amazon), to be sure that this book is really what you're looking for. Even though it was reviewed in magazines like Vintage Guitar, it is primarily focused on rather esoteric OTL hi-fi amps.