Vacuum Tube Amplifier

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Vacuum Tube Amplifier EBay Bargains!

Douk Audio 6J1+6P1 Vacuum Tube Amplifier Single-en
Douk Audio 6J1+6P1 Vacuum Tube Amplifier Single-en
Ends in 18 Minutes 27 Seconds
Current price: $110.00 (10 bids)
Cayin MT-35MK2  EL34x4 class AB1 push-pull vacuum
Cayin MT-35MK2 EL34x4 class AB1 push-pull vacuum
Ends in 17 Hours 56 Minutes 24 Seconds
Current price: $699.00 (0 bids)
KT88-98 Class A Single-ended HIFI Power Stereo Aud
KT88-98 Class A Single-ended HIFI Power Stereo Aud
Ends in 1 Days 6 Hours 3 Minutes 44 Seconds
Current price: $445.55 (4 bids)
Rockola Stereo Vacuum Tube Amplifier 44141-A Amp (
Rockola Stereo Vacuum Tube Amplifier 44141-A Amp (
Ends in 2 Days 13 Hours 53 Minutes 56 Seconds
Current price: $109.00 (0 bids)
Douk Audio KT88 Vacuum Tube Amplifier Single-ended
Douk Audio KT88 Vacuum Tube Amplifier Single-ended
Ends in 4 Days 33 Minutes 48 Seconds
Current price: $408.50 (1 bid)
Douk Audio Hi-End EL34 Vacuum Tube Amplifier HiFi
Douk Audio Hi-End EL34 Vacuum Tube Amplifier HiFi
Ends in 5 Days 17 Hours 31 Minutes 52 Seconds
Current price: $236.55 (0 bids)
Douk Audio Bluetooth 4.0 EL34 Vacuum Tube Amplifie
Douk Audio Bluetooth 4.0 EL34 Vacuum Tube Amplifie
Ends in 5 Days 18 Hours 23 Minutes 12 Seconds
Current price: $274.55 (2 bids)
XiangSheng FU50 Sweet Peach Single-Ended Vacuum Tu
XiangSheng FU50 Sweet Peach Single-Ended Vacuum Tu
Ends in 6 Days 6 Hours 51 Minutes 1 Seconds
Current price: $340.00 (0 bids)
Douk Audio EL34 Vacuum Tube Amplifier Single-ended
Douk Audio EL34 Vacuum Tube Amplifier Single-ended
Ends in 6 Days 18 Hours 29 Minutes 37 Seconds
Current price: $258.00 (11 bids)
6P14 / EL84 Vacuum Tube Amplifier Class A Single-e
6P14 / EL84 Vacuum Tube Amplifier Class A Single-e
Ends in 7 Days 18 Hours 29 Minutes 47 Seconds
Current price: $178.00 (1 bid)
Triode Japan Vintage Stereo Power Vacuum Tube Ampl
Triode Japan Vintage Stereo Power Vacuum Tube Ampl
Ends in 7 Days 22 Hours 7 Minutes 15 Seconds
Current price: $1,690.00 (0 bids)
YAQIN SD-35A 6N8P Vacuum Tube Amplifier Hi-End HDC
YAQIN SD-35A 6N8P Vacuum Tube Amplifier Hi-End HDC
Ends in 8 Days 18 Hours 28 Minutes 15 Seconds
Current price: $659.99 (0 bids)
Douk Audio Mini Single-ended 6P14&EL84 Vacuum Tube
Douk Audio Mini Single-ended 6P14&EL84 Vacuum Tube
Ends in 8 Days 21 Hours 55 Minutes 52 Seconds
Current price: $204.25 (5 bids)
ShuguangSG-845 Vacuum Tube Amplifier 300B push 845
ShuguangSG-845 Vacuum Tube Amplifier 300B push 845
Ends in 9 Days 23 Hours 33 Minutes 21 Seconds
Current price: $1,550.00 (0 bids)
 Spark Cayin  A-88TMK2 KT88 Integrated vacuum tube
Spark Cayin A-88TMK2 KT88 Integrated vacuum tube
Ends in 10 Days 22 Hours 54 Minutes 58 Seconds
Current price: $1,860.00 (0 bids)
Meixing Mingda MC300-A  Class A Single-ended 300B
Meixing Mingda MC300-A Class A Single-ended 300B
Ends in 11 Days 42 Minutes 8 Seconds
Current price: $1,099.00 (0 bids)
YAQIN MC-5881A Integrated vacuum tube amplifier ul
YAQIN MC-5881A Integrated vacuum tube amplifier ul
Ends in 11 Days 53 Minutes 15 Seconds
Current price: $569.00 (0 bids)
Douk Audio EL34 Vacuum Tube Amplifier Single-ended
Douk Audio EL34 Vacuum Tube Amplifier Single-ended
Ends in 12 Days 5 Hours 1 Minutes 12 Seconds
Current price: $223.25 (6 bids)
Douk Audio EL34 Vacuum Tube Amplifier HiFi 2.0 Cha
Douk Audio EL34 Vacuum Tube Amplifier HiFi 2.0 Cha
Ends in 13 Days 33 Minutes 43 Seconds
Current price: $271.70 (3 bids)
Douk Audio 6P3P Vacuum Tube Amplifier Single-ended
Douk Audio 6P3P Vacuum Tube Amplifier Single-ended
Ends in 15 Days 22 Hours 59 Minutes 42 Seconds
Current price: $146.00 (2 bids)
Vacuum tube amplifier Assembling Kit Gakken
Vacuum tube amplifier Assembling Kit Gakken
Ends in 15 Days 23 Hours 41 Minutes 32 Seconds
Current price: $227.72 (0 bids)
Douk Audio Class A 6J5 Vacuum Tube Amplifier 47 He
Douk Audio Class A 6J5 Vacuum Tube Amplifier 47 He
Ends in 16 Days 17 Hours 56 Minutes 58 Seconds
Current price: $45.00 (2 bids)
Douk Audio KT88 Single-ended Class A Vacuum Tube A
Douk Audio KT88 Single-ended Class A Vacuum Tube A
Ends in 16 Days 21 Hours 20 Minutes 10 Seconds
Current price: $284.05 (1 bid)
Douk Audio EL34 Vacuum Tube Amplifier Class A sing
Douk Audio EL34 Vacuum Tube Amplifier Class A sing
Ends in 16 Days 21 Hours 30 Minutes 4 Seconds
Current price: $233.70 (0 bids)
Douk Audio 6P3P Vacuum Tube Amplifier Stereo HiFi
Douk Audio 6P3P Vacuum Tube Amplifier Stereo HiFi
Ends in 16 Days 21 Hours 50 Minutes 20 Seconds
Current price: $151.05 (1 bid)
Douk Audio 300B Vacuum Tube Amplifier HiFi 2.0 Cha
Douk Audio 300B Vacuum Tube Amplifier HiFi 2.0 Cha
Ends in 17 Days 18 Hours 37 Minutes 22 Seconds
Current price: $420.00 (2 bids)
EL34 single-ended Pure Class A Amplifier 5Z3PJ Vac
EL34 single-ended Pure Class A Amplifier 5Z3PJ Vac
Ends in 21 Days 1 Hours 27 Minutes 55 Seconds
Current price: $220.00 (0 bids)
Douk Audio EL34 Vacuum Tube Amplifier HiFi 2.0 Cha
Douk Audio EL34 Vacuum Tube Amplifier HiFi 2.0 Cha
Ends in 22 Days 56 Minutes 8 Seconds
Current price: $218.50 (0 bids)
Bluetooth 4.0 High-power HiFi Vacuum Tube Amplifie
Bluetooth 4.0 High-power HiFi Vacuum Tube Amplifie
Ends in 22 Days 7 Hours 19 Minutes 3 Seconds
Current price: $218.08 (0 bids)
Melos TM 90ST II VACUUM TUBE AMPLIFIER
Melos TM 90ST II VACUUM TUBE AMPLIFIER
Ends in 24 Days 8 Hours 36 Minutes 42 Seconds
Current price: $1,150.00 (0 bids)
VINTAGE SILVERTONE VACUUM TUBE AMPLIFIER 6AQ5 SE
VINTAGE SILVERTONE VACUUM TUBE AMPLIFIER 6AQ5 SE
Ends in 25 Days 5 Hours 14 Minutes 9 Seconds
Current price: $60.00 (0 bids)
Douk Audio 6N2+6P1 Class A Vacuum Tube Amplifier S
Douk Audio 6N2+6P1 Class A Vacuum Tube Amplifier S
Ends in 26 Days 4 Hours 51 Minutes 48 Seconds
Current price: $122.55 (7 bids)
Finished 6n9p + EL34-B class A vacuum tube amplifi
Finished 6n9p + EL34-B class A vacuum tube amplifi
Ends in 27 Days 2 Hours 32 Minutes 22 Seconds
Current price: $200.00 (0 bids)
DIY kit FU50+ 6N8P Class A vacuum tube amplifier t
DIY kit FU50+ 6N8P Class A vacuum tube amplifier t
Ends in 27 Days 2 Hours 48 Minutes 7 Seconds
Current price: $163.00 (0 bids)
Original Dared MP-5BT HiFi Valve Vacuum Tube Ampli
Original Dared MP-5BT HiFi Valve Vacuum Tube Ampli
Ends in 27 Days 18 Hours 45 Minutes 5 Seconds
Current price: $466.00 (0 bids)
Douk Audio 2A3 Vacuum Tube Amplifier Stereo Hi-Fi
Douk Audio 2A3 Vacuum Tube Amplifier Stereo Hi-Fi
Ends in 27 Days 18 Hours 49 Minutes 15 Seconds
Current price: $379.05 (0 bids)
Douk Audio 6J8P+FU50 Vacuum Tube Amplifier Single-
Douk Audio 6J8P+FU50 Vacuum Tube Amplifier Single-
Ends in 27 Days 22 Hours 54 Minutes 27 Seconds
Current price: $180.50 (3 bids)
Bluetooth 4.0 HiFi Vacuum Tube Amplifier Stereo Cl
Bluetooth 4.0 HiFi Vacuum Tube Amplifier Stereo Cl
Ends in 28 Days 16 Minutes 4 Seconds
Current price: $226.10 (6 bids)
VACUUM TUBE AMPLIFIER AV-711 LOWDER
VACUUM TUBE AMPLIFIER AV-711 LOWDER
Ends in 28 Days 16 Minutes 43 Seconds
Current price: $287.71 (0 bids)
Jolida JD1000P 2 channel vacuum tube amplifier fro
Jolida JD1000P 2 channel vacuum tube amplifier fro
Ends in 29 Days 14 Hours 50 Minutes 10 Seconds
Current price: $2,248.95 (0 bids)
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Vacuum Tube Amplifier Amazon Deals!

Vacuum Tube Amplifier BasicsVacuum Tube Amplifier Basics

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 1Audiophile 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

•ELECTRONIC COMPONENTS

•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

•NEGATIVE FEEDBACK

•TONE CONTROLS, ACTIVE CROSSOVERS AND OTHER CIRCUITS

•PRACTICAL LINE-LEVEL PREAMPLIFIER DESIGNS

•PHONO PREAMPLIFIERS

•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 AmplifiersAll 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*2GemTune 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.
Specifications:
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

Packages:
1 * GemTune Audio X-1 Tube Amplifier



YAQIN MC-84L 6P14 x4 Class A Vacuum Tube Integrated AmplifierYAQIN MC-84L 6P14 x4 Class A Vacuum Tube Integrated Amplifier

Specifications:
Output Power:12W+12W (4Ω-8Ω) >
Frequency Response: 6Hz-60KHz>
Distortion: ≤1.5%>
SNR:≥78dB>
Input Sensitivity: ≤300mV>
Tube: 6P14*4 12AX7*2 >
Load Impedance:4Ω-8Ω>
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 >




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