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Valve Amplifiers (Anglais) Broché – 28 août 2003

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Détails sur le produit

  • Broché: 640 pages
  • Editeur : Newnes; Édition : 3 (28 août 2003)
  • Langue : Anglais
  • ISBN-10: 0750656948
  • ISBN-13: 978-0750656948
  • Dimensions du produit: 3,2 x 15,5 x 23 cm
  • Moyenne des commentaires client : 5.0 étoiles sur 5  Voir tous les commentaires (3 commentaires client)
  • Classement des meilleures ventes d'Amazon: 152.062 en Livres anglais et étrangers (Voir les 100 premiers en Livres anglais et étrangers)
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In order to look at the interesting business of designing and building valve amplifiers, we will need some knowledge of electronics fundamentals. Lire la première page
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Couverture | Copyright | Table des matières | Extrait | Index
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1 internautes sur 1 ont trouvé ce commentaire utile  Par Gregoire Hubert on 24 août 2010
Format: Broché Achat vérifié
Ce livre m'avait été recommandé par un ami, quel bon conseil ! Il s'adresse aux lecteurs avertis en électronique et permet déjà de revisiter des choses que l'on pensait parfois bien connaitre. Il propose plus globalement de partager l'immense expérience de son auteur, Morgan Jones. Toutes les questions sont posément étudiées, les types de montages passés au peigne fin avec bien souvent l'ajout de composants modernes aux schémas anciens et les conclusions d'expérimentations menées par l'auteur.
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Par verzedav on 7 février 2012
Format: Broché
THE book about tube amp, classical schematics are deeply analysed, with an incredible level of details and explanations , deserve a worlwide retail and a translation in every language ...
if there is one book that could make you understand tube amplification : there it is !!
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Par Nicolas Houel on 14 février 2011
Format: Broché
Tout amateur d'ampli DIY à tubes doit posséder ce livre.
Morgan Jones vulgarise, explique les phénomènes physiques et démontre par le test, il y a tout ! C'est tellement bien que j'ai déjà oublié les autres (Dieleman, Ibre et même les plus anciens Briggs, Crowhurst...)
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Commentaires client les plus utiles sur (beta) 25 commentaires
38 internautes sur 38 ont trouvé ce commentaire utile 
The new reference for modern tube audio design 2 octobre 2004
Par Bighairydoofus - Publié sur
Format: Broché
Fifteen years ago, tubes (valves to the rest of the world) were not only out of style, they were almost extinct. The same went for vinyl records. But there were always a few people that didn't buy into the new technology, insisting that tube electronics sounded more in step with the music. I heard my first high end tube amp (a Conrad Johnson MV-45) in 1987 and I've been hooked on the sound ever since. Thanks to a series of events that few could have forseen, the DIY tube revolution is in full swing. The fall of Communism and China embracing capitalism opened the flood gates, making more tube types cheaply available than since the mid-sixties. Add the internet with it's flow of information, and the underground DIY audio scene was born. There's an embarassment of riches now available to the amateur Hi-Fi enthusiast, and this volume is one of the best.

I've owned the first edition of this book for several years and it's absolutely great. It was a logical step up from my first DIY tube amp book, Bruce Rosenblitt's Beginners Guide to Tube Audio Design (now out of print). The first edition clocked in at 300+ information packed pages, covering everything from the performance of different electronic components used in tube amps, amp and preamp projects to chassis construction and design. When the second edition came out, I decided not to buy it thinking it maybe corrected some errors and had some new projects. Now that I've read the third edition, I have a funny feeling that I've missed out. See, the new edition is over SIX HUNDRED pages long, and that's without the amplifier construction section! The amplifier construction techniques are now covered in Mr. Jones' companion volume, Building Valve Amplifiers, in itself a 300+ page book. What this means is if you include the companion volume, there's THREE TIMES the information than in the first edition, over a thousand pages! Not only is there more, but it's better organized and edited than the first edition.

Morgan Jones covers just about every tube related subject, not hesitating to offer his opinions along the way. He doesn't hide his dislike for some current tube audio trends, such as tube power supply regulators and single ended amplifiers. There's a single ended amplifier project in the book, and while it's not a 300B amp project (he rightly says there are enough of those around), he goes through the project with all the thoroughness and care we've come to expect. There are several other projects, including a tube headphone amp, the author's original EL84 amp, a more powerful push-pull amp using 13E1 output tubes, his original "practical pre amplifier" from his first edition, plus a balanced preamp and a new line preamp and phono stage.

The wonderful thing about the projects in this book is that the author doesn't just present the schematic and say "build this", he goes through every step from tube and component selection to each design choice along the way. This isn't just a project book, this is a book that teaches you how to actually design an amp. I haven't built any of the designs in the book (yet), but I have no doubt that they sound very, very good indeed. And for vinyl enthusiasts, the amount of time spent explaining phono preamps is an absolute treasure. You won't find this information anywhere else!

Yeah, it's an expensive book, but worth every penny. The bottom line is this - if you're interested in DIY vacuum tube electronics and don't have this book and it's companion volume, you're limiting yourself. I think even crusty old timers that have been working with tubes for years could learn something from this book. If you've learned everything this book and it's companion volume have to offer, I believe that you could build tube audio electronics that compare to the best that are available, regardless of price.
35 internautes sur 37 ont trouvé ce commentaire utile 
Good for beginners, but minor misconceptions put me off. 6 février 1999
Par Martin A - Publié sur
Format: Broché
If you don't know much about valve amplifiers ['valve' = `tube' in USA], you will learn a lot by reading this book, which starts from the basics. It is generally readable and easy to understand. In addition to theory, it also covers some very practical aspects [how to cut metal, how to solder, and so on]. The author's style is highly enthusiatic but came across to me as being slightly amateurish.

Its focus is on hi-fi audio amplifiers - it does not touch on valve guitar amplifiers.

What I liked most was the author's down-to earth common sense approach, which he evidently acquired through his training at the BBC. [no nonsense about gold plating your mains fuses here]

What I liked *least* were minor misconceptions and the details he gets wrong here and there. As a few examples, if you took him at his word, you would believe:

- Fitting metal screening to an input valve will shorten its life.

- The B-H curve of a transformer's iron can be treated as the Vin - Vout characteristic.

- The getter in a valve is only effective if the heater is hot before the anode voltage is applied.

Two topics I thought were significant omissions:

- How to measure amplifier characteristics [eg frequency response, power output, distortion].

- How to design feedback amplifiers to get the best performance for a given output transformer.

Troubleshooting [a pretty important topic] is only touched on.

As I said, if you don't know much about valve amplifiers, you can learn a lot from this book and will find it easy to read with lots of useful information. But if [like me] you are put off by incorrect details and a slightly amateurish air, leave it on the bookshelf.
17 internautes sur 18 ont trouvé ce commentaire utile 
A thoughtful treatment of a little known subject. 9 juillet 2000
Par Leendert Dekker - Publié sur
Format: Broché
There are very few young people today that know what a valve amplifier is, let alone having heard one. Most probably think of those humming old radiograms (seen in the movies) in the early days of radio when the valve itself was still undergoing refinement. The modern valve amplifiers give by far the warmest richest sound that can be wished for in an amplifier - and they DO NOT HUM. I am an avid suporter of valve amplifiers. I firmly believe that the transitor to take a valve's place in audio amplifiers has still to be manufactured. This book takes the novice through a wonderful discovery of the valve.
This book is notable since it is one of very few current textbooks that goes to the trouble of explaining in relative detail (a full treatment would require several volumes) on how amplifiers work. I am a teacher at a technical college and have found great use for this book in my lectures. In my experience students have a greater understanding of the complexity of the transistor once they fully understand the valve.
Enough said on education. What grabbed me is how this book guides one to the actual building of an amplifier - this being my hobby. I think that anyone that has heard a well designed valve amplifier in action and has a little electronic background ought to buy this book and work through it. It is immensly gratifying to design and build one's own valve amplifier. Especially because a valve is far more tolerant to the misuse of a novice designer than any transistor.
8 internautes sur 8 ont trouvé ce commentaire utile 
It helped me design a tube amp from scratch--and it worked! 28 mars 1998
Par Mark T. Mcquain - Publié sur
Format: Broché Achat vérifié
I wanted a book that would help someone build a vacuum tube amplifier who understood basic electronics but who had no prior experience with vacuum tubes (or valves as the British call them). This book was the answer to my search. Morgan Jones does a great job with the book. There were some minor (editing?) errors but these were of no great consequence. From the education in the book, I was able to build a single ended monobloc amp for about $500 which sounds a good as some commercial tube amps costing $5000 (my unbiased opinion)
7 internautes sur 7 ont trouvé ce commentaire utile 
A fine general text 22 novembre 2004
Par Stuart I. Yaniger - Publié sur
Format: Broché Achat vérifié
Jones takes a very practical yet comprehensive approach to the design of valve amps and preamps. I've built quite a few over the years and was skeptical that I would get much out of this book, yet every chapter had some nuggets in it that either I didn't know or systematized previously unconnected things I did know. Hours and hours of fun. And really well-written. Excellent work, and I've recommended it to everyone I know with an interest in the subject.
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