Career professionals (187 résultats)

Soft cover. Etat : Good. 3rd Edition. 58 pages; very minor edgewear to cover; some minor smudges to cover, especially on back; a couple minor dings; stapled binding; weighs 3 ounces; measures 8.5 by 5.3 by .22 inches; 101214; includes, '. some thoughts on motivation, job satisfaction, career planning, developing an effective search plan, compensation, negotiating, and selecting and working with a recruiter.'; 'Career Professionals' is an executive search and placement specialist.…

Etat : As New. Unread book in perfect condition.

Etat : New.

Paperback. Etat : New. First Edition.

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Etat : New. In English.

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Etat : As New. Unread book in perfect condition.

Etat : As New. Unread book in perfect condition.

Etat : New.

Etat : As New. Unread book in perfect condition.

Etat : New.

Etat : New.

Etat : As New. Unread book in perfect condition.

Paperback. Etat : New.

Paperback. Etat : New.

Paperback. Etat : Very Good. Paperback. Pages are clean and unmarked. Covers show very minor shelving wear.; 100% Satisfaction Guaranteed! Ships same or next business day.

Paperback. Etat : New.

Etat : As New. Unread book in perfect condition.

Etat : As New. Unread book in perfect condition.

Etat : New.

Etat : As New. Unread book in perfect condition.

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Etat : New.

Etat : New.

Paperback. Etat : new. Paperback. Volume 3 of the most complete and practical modern reference on audiophile vacuum tube technology If you liked the practical side of Volumes 1 and 2, Volume 3 will delight you. No theory, just dozens of practical designs, proven circuits and useful test & measurement methods. Various directly-heated triodes are explored and used in line stages and power amplifiers, a true heaven for DHT lovers. Dozens of DIY and commercial amps and preamps with 2A3, 300B, VT25, #46, 12A, 201A, GM70, 805, 845, 813, 211A are described in detail, their circuits analyzed and improvements suggested. Most use no negative feedback and many feature interstage transformers or direct coupling. Many less known preamplifier and driver tubes are also explored and used in practical designs: EL33, 12B4A, EC8010, 6EM7, 6DN7, 6N30P, 5670, C3m, C3g and 1626 (VT-137). Most sound divine in preamplifiers and driver stages of power amplifiers! More than a dozen of vintage designs were discussed and analyzed, amplifiers that featured prominently in the history of hi-fi or are recommended as upgrade platforms, QUAD II, The Williamson amplifier, Dynaco MkIII, Quicksilver 8417 and Fisher SA-1000 among others. Designs by contemporary amplifier makers such as Audio Research, E.A.R., Shindo Labs, Leben, Jadis, Audion, Bel Canto, Marantz and others, also feature prominently in this volume. Valuable lessons can be learned from these case studies. Finally, for those who want proven, practical, ready-to-build designs, many of our own, tried & tested circuits are explained and analyzed. Most outperform expensive commercial audiophile gear by a wide margin. As an amateur DIY builder you are free to build them for your personal use, so just get your soldering iron ready and start building! This practical DIY manual is richly and professionally illustrated with photographs of tubes, components and amplifiers, circuit diagrams, tube pinouts, curves and loadlines, graphs and charts. These valuable illustrations make it faster and easier to comprehend issues, a picture is worth a thousand words! All the information required to design and build tube amplifiers is compiled in one place. Contents of Volume 3: -WHY THE NEED FOR VOLUME 3, AND HOW IT DIFFERS FROM THE FIRST TWO> -THE FRONT-END: SUPERIOR INPUT & DRIVER STAGES> -FROM SHOCKING TO SUBLIME: LESSONS FROM COMMERCIAL LINE STAGES> -DIY LINE-LEVEL PREAMPLIFIERS: $10,000 SOUND ON $500-$1,000 BUDGET> -THE STARS OF THE AUDION ERA: ANCIENT TUBES IN MODERN AMPS> -CHEAP & CHEERFUL: PREAMP & DRIVER TUBES FOR AUDIO EXPLORERS -SLEEPING GIANTS: OUTPUT TUBES FOR THOSE WHO WANT TO BE DIFFERENT -THE QUEEN OF HEARTS: SINGLE-ENDED AMPLIFIERS WITH 300B TRIODES -TRIODES, PENTODES AND BEAM TUBES: MORE SINGLE-ENDED DESIGNS -BIG BOTTLES: SET AMPLIFIERS WITH HIGH VOLTAGE TRANSMITTING TUBES -THE WAY IT USED TO BE: VINTAGE PUSH-PULL AMPLIFIERS -NEW? IMPROVED? MODERN PUSH-PULL AMPLIFIER DESIGNS -CUTE, CLEVER OR CONTROVERSIAL? INTERESTING IDEAS FROM TUBE AUDIO'S PAST AND PRESENT -THRIFTY TIPS & TRICKS: TIME & MONEY SAVING IDEAS -OUTPUT AND INTERSTAGE TRANSFORMERS: FROM COMMERCIALBENCHMARKS TO YOUR OWN DESIGNS -MEASUREMENTS VERSUS LISTENING AND OTHER AUDIO DESIGN DILEMMAS Volume 3 of the most complete and practical modern reference on audiophile vacuum tube technology If you liked the practical side of Volumes 1 and 2, Volume 3 will delight you. No theory, just dozens of practical designs, proven circuits and useful test & measurement methods. Various directly-heated triodes are explored and used in line stages and power amplifiers, a true heaven for DHT lovers. Dozens of DIY and commercial amps and preamps with 2A3, 300B, VT25, #46, 12A, 201A, GM70, 805, Shipping may be from multiple locations in the US or from the UK, depending on stock availability. …

Etat : New.

Paperback. Etat : new. Paperback. The most complete and practical modern reference on audiophile vacuum tube technology! Destined to become a true classic in its field, this unique DIY design & construction manual presents the theory and practice of amplifier design & construction in a balanced way. For those who dislike formulas and want proven, practical, ready-to-build designs, dozens of such commercial, tried & tested circuits are explained and analyzed. Just get your soldering iron ready and start building! Absolute beginners will benefit from the methodological approach, starting with DC circuits, then moving into AC voltages and currents and their circuits. The first few chapters of Volume 1 are a complete training course in fundamentals of electronics. Although the focus is on audiophile or "hi-fi" vacuum tube amplifiers, those interested in tube guitar amps will also benefit from the wealth of material presented, most of which directly applies to tube guitar amps as well. Apart from various audio circuits, electronic components, power supplies and tests & measurements are also covered in depth. Even tube testing and tube testers are discussed at great length, as is troubleshooting, repairing and modifying (upgrading) tube gear. The advanced topics that other books don't even mention, such as audio transformer design, construction and testing, make this reference manual a valuable addition to your technical library. For those familiar with solid state devices, such as bipolar transistors and FETs, an easy and seamless transition into tube technology is provided in the book, which adopts a unifying approach to amplification and rectification devices, be they of solid state or vacuum tube kind. This practical DIY manual is richly and professionally illustrated with photographs of tubes, components and amplifiers, circuit diagrams, tube pinouts, curves and loadlines, graphs and charts. Hundreds of such valuable illustrations make it easy to comprehend issues. There is no need to search for, download and print such information, saving you valuable time. All the information required to design and build tube amplifiers is compiled in one place. Who is this book for? -Audiophiles and guitar players wanting to learn how tubes and tube amplifiers work. -DIY constructors who wish to take their knowledge and building skills to a higher level. -Buyers and sellers of tubes and tube equipment who need a better understanding of tube technology. -Electronic technicians and engineers familiar with solid state devices and circuits, who want to expand their knowledge of tubes and their circuits. -Anyone who wants to learn how to design, build, test, fix, or upgrade tube gear. Contents of Volume 2: -PRACTICAL SINGLE-ENDED PENTODE AND ULTRALINEAR DESIGNS -PUSH-PULL OUTPUT STAGES -PRACTICAL PUSH-PULL AMPLIFIER DESIGNS -BALANCED, BRIDGE AND OTL (OUTPUT TRANSFORMERLESS) AMPLIFIERS -THE DESIGN PROCESS -FUNDAMENTALS OF MAGNETIC CIRCUITS AND TRANSFORMERS -MAINS TRANSFORMERS AND FILTERING CHOKES - POWER SUPPLIES FOR TUBE AMPLIFIERS -AUDIO TRANSFORMERS -TROUBLESHOOTING AND REPAIRING TUBE AMPLIFIERS -UPGRADING & IMPROVING TUBE AMPLIFIERS -SOUND CONSTRUCTION PRACTICES -AUDIO TESTS & MEASUREMENTS -TESTING & MATCHING VACUUM TUBES The most complete and practical modern reference on audiophile vacuum tube technology! Destined to become a true classic in its field, this unique DIY design & construction manual presents the theory and practice of amplifier design & construction in a balanced way. For those who dislike formulas and want proven, practical, ready-to-build designs, dozens of such commercial, tried & tested circuits are explained and analyzed. Just get y Shipping may be from multiple locations in the US or from the UK, depending on stock availability. …

Etat : New.

Etat : New.