Vacuum Tube Amplifier
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It is true that accurately calculating electronic circuits can involve complicated formulas, but for the electronic hobbyist it is not necessary to perform at the level of an electrical engineer. With some basic knowledge it is possible for the hobbyist to design and build vacuum tube audio amplifiers that perform well. This book covers basic electronics related to vacuum tube amplifiers, an elementary reference guide for the novice working with vacuum tube amplifier circuits. Written in sections that are concise, many with examples and illustrations. Sections help you read at your own pace, convenient to stop after a section, skip around sections or refer back to a section. For the novice not versed in electronics, electronic principles are included along with several sections covering electronic and audio basics. Vacuum tube amplifying circuits are explained in simple terms without complicated math. Math is primarily basic math and a few simple formulas all solvable with a standard calculator and presented with examples. Principles of vacuum tube operation includes function of grids, effect of tube capacitance, tube resistance and heat dissipation. Power supply sections cover vacuum tube and solid state rectifier conversion of AC to DC and DC filtering. A sample power supply is used to explain calculating loads, determining required transformer ratings and component values. How to calculate a primary fuse value is also explained. Includes bias, bias supplies, calculating voltage gain and more. A table of component values for the popular 12AX7 in various operating parameters simplifies amplifier stage design. Includes project circuits with parts list and component layouts for a Buffer Line Amplifier with 25db gain, Triode Balanced-Unbalanced Input, Tone Control Stage, Turntable Pre-Amplifier, 6V6SE Stereo Amplifier, 6V6SE Monoblock Amplifier and a 30 Watt Monoblock Amplifier designed for tube rolling using various type output tubes. Also, included is a Guitar Amplifier project.
Audiophile Vacuum Tube Amplifiers - Design, Construction, Testing, Repairing & Upgrading, Volume 1
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 1:
•WHO WILL BENEFIT FROM THIS BOOK AND HOW
•BASIC ELECTRONIC CIRCUIT THEORY
•AUDIO FREQUENCY AMPLIFIERS
•PHYSICAL FUNDAMENTALS OF VACUUM TUBE OPERATION
•VOLTAGE AMPLIFICATION WITH TRIODES - THE COMMON CATHODE STAGE
•OTHER VOLTAGE AMPLIFICATION STAGES WITH TRIODES
•TETRODES AND PENTODES AS VOLTAGE AMPLIFIERS
•FREQUENCY RESPONSE OF VACUUM TUBE AMPLIFIERS
•IMPEDANCE-COUPLED STAGES AND INTERSTAGE TRANSFORMERS
•TONE CONTROLS, ACTIVE CROSSOVERS AND OTHER CIRCUITS
•PRACTICAL LINE-LEVEL PREAMPLIFIER DESIGNS
•SINGLE-ENDED TRIODE OUTPUT STAGE
•PRACTICAL SINGLE-ENDED TRIODE AMPLIFIER DESIGNS
•PRACTICAL SINGLE-ENDED PSEUDO-TRIODE DESIGNS
•SINGLE-ENDED PENTODE AND ULTRALINEAR OUTPUT STAGES
All About Vacuum Tube Guitar Amplifiers
(Book). Explores all manufacturers and de-mystifys the inner workings of tube amps. All new material from the amp guru Gerald Weber. Tons of empirical data that de-mystify the inner workings of tube amps to help you get the most from your amps! You will learn how tube amps work, electronic concepts, how different types of tubes work, the anatomy of a gain stage, how to resurrect a dormant tube amp, how to do a cap job correctly, modifications to preserve your amp, how to voice an amp and tune the reverb, how to build an amp, recover a cabinet, re-grill a baffleboard, how to buy a vintage amp; and common wiring mistakes and idiosyncrasies found in vintage amps. And you get a couple of hundred pages of Questions and Answers sectioned off into Fender, Gibson, Marshall, Danelectro/Silvertone, Vox, Other American, Other British and Miscellaneous Topics. You will learn the six dreaded tone killers and how to avoid them, the top ten amp-tone tips, and how to fine-tune your entire amp setup. In short, you will have the knowledge needed to squeeze your amp's performance from lame to insane.
GemTune X-1 Class-A Tube Amplifier with 5Z4P*1, 6N9P*1, EL34-B*2
GemTune X-1 Amplifier is a good choice if you're a tube amplifier fan. You can enjoy all kinds of music with the it, especially vocal music & chords.
Please download the user manual from: https://s3.amazonaws.com/Doctor-001/GemTune+Amp/Manual+for+Tube+Amplifier+X-1.pdf
Don't suggest to connect regular headphone jack to amp. Recommend to use Lineout jack.
Input Voltage: 110V
Tube: 5Z4P*1, 6N9P*1, EL34-B*2
Output Impedance: 0~4ohm~8ohm
Input Impedance: 100Kohm
Input Sensitivity: 500mv~2000mv
Distortion: 1% (1KHz)
Frequency Response: 20Hz~25KHz
Signal/Noise Ratio: 88dB
Output Power: 8W
1 * GemTune Audio X-1 Tube Amplifier
YAQIN MC-84L 6P14 x4 Class A Vacuum Tube Integrated Amplifier
Output Power:12W+12W (4Ω-8Ω) >
Frequency Response: 6Hz-60KHz>
Input Sensitivity: ≤300mV>
Tube: 6P14*4 12AX7*2 >
Maximum Power Consumption:≤ 90W>
Size: 13*11*6 inches(L*W*H) >
Gross Weight: About 9.6kg>
Package list :
MC-84L *1 >
User manual *1 >
Hexagon screwdriver *1 >