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1. Encyclopedia of Electronic Circuits, Volume 7 in Paperback by rudolf Graf
   I ordered this book, Encyclopedia of Electronic Circuits, Volume 7 [Paperback], to keep around for circuit studies. I can use it for reference and to look up circuits and be relatively sure they have been tried and proven to work. This book is, extensive and has circuits, named and explained, over a thousand of them and yet it is a shortened version of the hardbound. It is an invaluable reference tool for me, and I am just a hobbyist electronics technician rather than a professional. It just about has any type of circuit you might want to make or study. Organized alphabetically and by circuit type, this collection includes something for each circuit, you would find when you are doing experiments or study of electronics. With each circuit you’ll find a brief explanation of its operation and more information regarding adjustments or alignment. This is a valuable tool for my work bench.

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2. A Slightly Different Perspective for INVENTORS…
   If you read ALL the reviews of ALL seven volumes of Graf’s general encyclopedia series, PLUS Graf’s 5 “specialty” circuit books (Oscillators, Amplifiers, Detectors, Measuring and Converters), you’ll get a noticeable trend: these books are either for very new hobbyists or designers OR very experienced engineers!Both are actually right, as the series depends on your goals. Since a lot of the info is outdated, it also means a lot is public domain, and you can find some real “gem ideas” that have been forgotten, and with modern component updates, can become the material for a new patent, or components thereof. Circle M’s are usually abandoned within 9 years, and didn’t even exist back then.In that vein of advanced scanning, another advanced requirement is the ability to calculate missing values and spot mistakes. Eg. Graf gives a digital power monitor circuit with a missing reset switch and only one (R2) of two resistor values. You can use VSense=r1 + 10K/10K * 2.3, for example, to solve for r1, and use vsense over your VTP, with test values, to get your max voltage.So, for the newbies, hobbyists and new inventors. Hey, with the right attitude, figuring out the mistakes (without blowing yourself up or burning your garage down) can be a challenge! If you compare circuits with online resources and the awesome McGraw Hill circuit (troubleshooting) series (volume 4 is awesome but very rare and expensive– had to buy if from India: McGraw-Hill Circuit Encyclopedia and Troubleshooting Guide, Volume 4), you can become the Sherlock Holmes of the design world with this series! Think of it as a puzzle and you won’t get as ticked off as some of this series’ reviewers seem to!I test circuits, especially for law firms and inventors, at payroy dot com, for reference, so my perspective and bias is new as well as experienced inventors. If you’re an inventor and combine these series with, for example, Practical Electronics for Inventors, Third Edition, you’ll have a wonderful and huge set of resources to compare TO the modern web or even smartphone app circuit resources. They say a chess grandmaster has 50,000 positions memorized, I’m guessing that the best inventors eventually have thousands of circuits in mind too! Learning to judge the bad from the good is what the other reviewers who trash this series know how to do– but studying both good and bad is a GREAT way to learn the difference, as well as spot undiscovered or forgotten gems. Old isn’t always bad!!!Library Picks reviews only for the benefit of Amazon shoppers and has nothing to do with Amazon, the authors, manufacturers or publishers of the items we review. We always buy the items we review for the sake of objectivity, and although we search for gems, are not shy about trashing an item if it’s a waste of time or money for Amazon shoppers. If the reviewer identifies herself, her job or her field, it is only as a point of reference to help you gauge the background and any biases.

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3. A must for every electrical hobbyist
   The book has very useful electrical circuits so it is very good reference if you want to fix or know how something works.i say grab this book with a heart beat.

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4. Encyclopedia of Electronic Circuits, Vol. 7
   If you are into creating electronic gadgets or love tinkering with electronic parts, then this is the book for you.There are lots of beneficial, as well as “just fun” projects, contained within this publication.This book can also serve the “electronic dreamer” with lots of food for thought…a good volume to own if you are interested in electronics to varying degrees.

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5. The Encyclopedia of Electronic Circuits
   The set of Encyclopedia of Electronic Circuits is a 7 volume set of copies of MANY different circuits copied from many sources. They are circuits covering almost every imaginable electronic device you could want. And if there are different ways of building the circuit, it will show them too. It will give you a exhaustive supply of building blocks to help you put together any device you might wish to build.

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6. Disappointing
   Amazon’s “Look Inside” is a great feature when purchasing books, however in this case it it raised my expectations for this book. The Table of Contents had many subjects I’m interested in however the actual schematics for those subjects were thin and very outdated. Keep in mind, this book was published in 1999. On the good side – they have replaced most of the vacuum tube circuits. For example: as a photographer, I’m always looking for new projects. Of the 6 circuits, 4 were for darkroom and one was a slide projector controller both of which I abandoned many years ago. This will probably be my last printed book for schematics since the internet is the best place to find circuits using the latest components.

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7. Great to keep for reference
   thorough and complete! Great to keep for reference. (used it to create some lighting and alarm circuits )

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8. A vast well of knowledge
   An amazing array of circuits from Ham Radio to car security this book’s got it all.

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9. very good interesting book, would like to find volumes 5 and 6. I bout volumes 1 2 3 4 from you some years ago/

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10. A waste of money. Most of the circuits are simple semi-conductor application circuits taken from manufacturer product data sheets.Poor circuit descriptions. Missing values for passive components. No explanation how to calculate values for passive components.Useless for a teaching aid. And confusing part identification for active components because many are no longer manufactured or have been replaced with generic identification by manufacturers who purchased the copyright to make the parts.Easier to find more information about the circuits you would like learn about using an Internet search engine such as Google.

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11. Dieses Buch kann jeder schreiben. Einfach alle greifbaren alten Datenbücher herholen und von den Applikationsschaltungen so viele wie möglich kopieren, sortieren und in ein Buch packen – ohne nähere Schaltungbeschreibungen.Viele völlig nutzlose Schaltungen mit Bauteilen und ICs, die es schon lange nicht mehr gibt. Beispiel: Funktionsgenerator mit ICL 8038, uvm.Bei vielen Schaltungen sieht man sofort, dass diese nicht einwandfrei funktioneren können. Daher schließe ich mich der englischen Rezension uneingeschränkt an. Ein Buch für die Tonne. Musste es aber unbedingt kaufen, da ich als Elektronikexperte nicht ruhig schlafen kann, wenn ich nicht weiß, was in solchen Büchern steht.Den Aufdruck “The Electronics Authority” bezeichne ich als Satire.Das Buch könnte besser heißen: Die Enzyclopädie aussortierter Schaltungen.Mein Tipp: Finger weg von allem was “Rudolf Graf” heißt.Allerdings gibt es noch viele weitere unbrauchbare Bücher dieser Art.Ein Stern dafür, dass ich wieder ein bischen schlauer über den Kauf von Büchern geworden bin.

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