Vacuum Tube Amplifier

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Vacuum Tube Amplifier EBay Bargains!

Generic Vintage Stereo KT88 Vacuum Tube Amplifier
Generic Vintage Stereo KT88 Vacuum Tube Amplifier
Ends in 6 Hours 49 Minutes 58 Seconds
Current price: $568.56 (0 bids)
Melos TM 90ST II VACUUM TUBE AMPLIFIER
Melos TM 90ST II VACUUM TUBE AMPLIFIER
Ends in 23 Hours 20 Minutes 57 Seconds
Current price: $950.00 (0 bids)
Triode Japan Vintage Stereo Power Vacuum Tube Ampl
Triode Japan Vintage Stereo Power Vacuum Tube Ampl
Ends in 1 Days 55 Minutes 39 Seconds
Current price: $1,871.50 (0 bids)
DENON POA – 1000 B vacuum tube amplifier tube bu
DENON POA – 1000 B vacuum tube amplifier tube bu
Ends in 1 Days 2 Hours 26 Minutes 47 Seconds
Current price: $2,203.00 (0 bids)
BOGEN L-60 Series B-17 Vacuum Tube Amplifier SUPER
BOGEN L-60 Series B-17 Vacuum Tube Amplifier SUPER
Ends in 1 Days 21 Hours 33 Minutes 34 Seconds
Current price: $153.49 (2 bids)
MEIXING MINGDA  KT88 Vacuum Tube Amplifier With re
MEIXING MINGDA KT88 Vacuum Tube Amplifier With re
Ends in 2 Days 7 Hours 14 Minutes 21 Seconds
Current price: $879.00 (1 bid)
VINTAGE ALLEN ORGAN VACUUM TUBE AMPLIFIER 6L6 S12
VINTAGE ALLEN ORGAN VACUUM TUBE AMPLIFIER 6L6 S12
Ends in 2 Days 12 Hours 38 Minutes 54 Seconds
Current price: $350.00 (0 bids)
Vintage Zenith Console Vacuum Tube Amplifier 12ax7
Vintage Zenith Console Vacuum Tube Amplifier 12ax7
Ends in 2 Days 12 Hours 39 Minutes 34 Seconds
Current price: $35.00 (0 bids)
Hybrid vacuum tube amplifier kit ’cuBic kit&
Hybrid vacuum tube amplifier kit ’cuBic kit&
Ends in 2 Days 23 Hours 49 Minutes 26 Seconds
Current price: $344.00 (0 bids)
Original Dared MP-5BT HiFi Valve Vacuum Tube Ampli
Original Dared MP-5BT HiFi Valve Vacuum Tube Ampli
Ends in 3 Days 23 Hours 37 Minutes 50 Seconds
Current price: $466.00 (0 bids)
APPJ PA1501A Mini 6AD10 Vacuum Tube Amplifier Vint
APPJ PA1501A Mini 6AD10 Vacuum Tube Amplifier Vint
Ends in 4 Days 4 Hours 54 Minutes 24 Seconds
Current price: $234.00 (0 bids)
ShuguangSG-845 Vacuum Tube Amplifier 300B push 845
ShuguangSG-845 Vacuum Tube Amplifier 300B push 845
Ends in 5 Days 21 Hours 46 Minutes 41 Seconds
Current price: $1,550.00 (0 bids)
Audible Improvements 845 Class A SET Vacuum Tube A
Audible Improvements 845 Class A SET Vacuum Tube A
Ends in 7 Days 21 Hours 3 Minutes 5 Seconds
Current price: $5,995.99 (0 bids)
1× 12AX7 replace 6EU7 Vacuum Tube Amplifier Conve
1× 12AX7 replace 6EU7 Vacuum Tube Amplifier Conve
Ends in 8 Days 1 Hours 38 Minutes 33 Seconds
Current price: $7.50 (45 bids)
6N8P push 6P3P tube amp single-ended Class A 7.5w
6N8P push 6P3P tube amp single-ended Class A 7.5w
Ends in 8 Days 20 Hours 30 Minutes 59 Seconds
Current price: $190.00 (2 bids)
Vintage stereo KT88 push pull vacuum tube amplifie
Vintage stereo KT88 push pull vacuum tube amplifie
Ends in 8 Days 22 Hours 56 Minutes 35 Seconds
Current price: $914.48 (0 bids)
FOSTEX vacuum tube amplifier portable HP-V1
FOSTEX vacuum tube amplifier portable HP-V1
Ends in 9 Days 13 Hours 24 Minutes 11 Seconds
Current price: $381.60 (0 bids)
Cayin MT-35MK2  EL34x4 class AB1 push-pull vacuum
Cayin MT-35MK2 EL34x4 class AB1 push-pull vacuum
Ends in 10 Days 23 Hours 1 Minutes 53 Seconds
Current price: $699.00 (0 bids)
Hybrid vacuum tube amplifier kit ’cuBic kit&
Hybrid vacuum tube amplifier kit ’cuBic kit&
Ends in 12 Days 23 Hours 21 Minutes 21 Seconds
Current price: $345.99 (0 bids)
Vintage Acrosound Ultra Linear Vacuum Tube Amplifi
Vintage Acrosound Ultra Linear Vacuum Tube Amplifi
Ends in 14 Days 3 Hours 31 Minutes 7 Seconds
Current price: $179.00 (0 bids)
Dared MP-5BT HiFi AMP Valve Vacuum Tube Amplifier
Dared MP-5BT HiFi AMP Valve Vacuum Tube Amplifier
Ends in 15 Days 20 Hours 47 Minutes 2 Seconds
Current price: $349.00 (0 bids)
YAQIN MS-6V6 6P6P  push-pull Vacuum Tube Amplifier
YAQIN MS-6V6 6P6P push-pull Vacuum Tube Amplifier
Ends in 16 Days 3 Hours 48 Minutes 43 Seconds
Current price: $569.00 (0 bids)
Spark Cayin HA-1A Class A 12AX7 12AU7 Integrated H
Spark Cayin HA-1A Class A 12AX7 12AU7 Integrated H
Ends in 16 Days 23 Hours 34 Minutes 34 Seconds
Current price: $756.00 (0 bids)
Spark Cayin MT-12N vacuum Tube amplifier Integrate
Spark Cayin MT-12N vacuum Tube amplifier Integrate
Ends in 16 Days 23 Hours 51 Minutes 47 Seconds
Current price: $579.00 (0 bids)
Meixing Mingda MC300-A  Class A Single-ended 300B
Meixing Mingda MC300-A Class A Single-ended 300B
Ends in 17 Days 5 Hours 34 Minutes 53 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 17 Days 5 Hours 46 Minutes
Current price: $569.00 (0 bids)
Meixing Mingda MC368-B Vacuum Tube Amplifier KT88
Meixing Mingda MC368-B Vacuum Tube Amplifier KT88
Ends in 17 Days 11 Hours 39 Minutes 50 Seconds
Current price: $999.00 (1 bid)
Brand New APPJ Mini 2015 PA1501A HIFI Vacuum Tube
Brand New APPJ Mini 2015 PA1501A HIFI Vacuum Tube
Ends in 17 Days 23 Hours 20 Minutes 28 Seconds
Current price: $173.88 (1 bid)
 Vintage Bogen RP 100 BM AM/FM Vacuum Tube Amplifi
Vintage Bogen RP 100 BM AM/FM Vacuum Tube Amplifi
Ends in 18 Days 5 Hours 20 Minutes 31 Seconds
Current price: $119.00 (0 bids)
EL34 Douk Audio Vacuum Tube Amplifier HiFi 2.0 Cha
EL34 Douk Audio Vacuum Tube Amplifier HiFi 2.0 Cha
Ends in 22 Days 5 Hours 25 Minutes 19 Seconds
Current price: $229.95 (0 bids)
Dared MP-5 Hifi  AMP Valve Vacuum Tube Amplifier U
Dared MP-5 Hifi AMP Valve Vacuum Tube Amplifier U
Ends in 22 Days 18 Hours 33 Minutes 42 Seconds
Current price: $299.00 (0 bids)
Dared VP-16 Integrated Vacuum Tube Amplifier
Dared VP-16 Integrated Vacuum Tube Amplifier
Ends in 23 Days 1 Hours 39 Minutes 37 Seconds
Current price: $329.95 (0 bids)
HIFI stereo EL34 vacuum tube amplifier power AMP ,
HIFI stereo EL34 vacuum tube amplifier power AMP ,
Ends in 23 Days 3 Hours 28 Minutes 44 Seconds
Current price: $356.96 (0 bids)
LUXMAN LUXKIT vacuum tube amplifier A3000 Used Aud
LUXMAN LUXKIT vacuum tube amplifier A3000 Used Aud
Ends in 24 Days 58 Minutes 42 Seconds
Current price: $2,749.00 (0 bids)
HiFi Amplifier Class A single-ended 6n1  6P3P vacu
HiFi Amplifier Class A single-ended 6n1 6P3P vacu
Ends in 25 Days 3 Hours 49 Minutes 51 Seconds
Current price: $175.00 (0 bids)
KT88 single-ended class A vacuum tube amplifier DI
KT88 single-ended class A vacuum tube amplifier DI
Ends in 25 Days 4 Hours 11 Minutes 4 Seconds
Current price: $359.00 (0 bids)
KT88 single-ended class A vacuum tube amplifier as
KT88 single-ended class A vacuum tube amplifier as
Ends in 25 Days 4 Hours 15 Minutes 53 Seconds
Current price: $399.00 (0 bids)
Audio Nirvana 300B Single Ended Triode Vacuum Tube
Audio Nirvana 300B Single Ended Triode Vacuum Tube
Ends in 25 Days 12 Hours 8 Minutes 41 Seconds
Current price: $1,595.00 (1 bid)
Nobsound Hybrid Headphone Amp Mini Stereo Vacuum T
Nobsound Hybrid Headphone Amp Mini Stereo Vacuum T
Ends in 26 Days 22 Hours 48 Minutes 14 Seconds
Current price: $46.00 (4 bids)
 Spark Cayin  A-88TMK2 KT88 Integrated vacuum tube
Spark Cayin A-88TMK2 KT88 Integrated vacuum tube
Ends in 29 Days 21 Hours 48 Minutes 35 Seconds
Current price: $1,760.00 (0 bids)
View more Vacuum Tube Amplifier on eBay


Vacuum Tube Amplifier Amazon Deals!

Gemtune X-1 Class-A Integrated Tube Amplifier with 5Z4P1, 6N9P1, EL34-B2Gemtune X-1 Class-A Integrated Tube Amplifier with 5Z4P1, 6N9P1, EL34-B2

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: 10W

Packages:
1 * GemTune Audio X-1 Tube Amplifier
【GUARANTEE】 We provide a 1 year warranty for the amplifier and 2 month warranty for the tubes. Our goal is to provide 100% customer satisfaction so you can buy with confidence!


Nobsound NS-08E Vacuum Tube Integrated Amplifier Mini Audio HiFi Stereo Headphone AmpNobsound NS-08E Vacuum Tube Integrated Amplifier Mini Audio HiFi Stereo Headphone Amp

Specifications:

Output power: ≥1100 mW (32 ohm)
Headphone Adapter Impedance: 18-600 ohm
Total harmonic distortion:

GemTune GS01 Hi-Fi Tube Amplifier with Tubes: EL34,6N9P,5AR4GemTune GS01 Hi-Fi Tube Amplifier with Tubes: EL34,6N9P,5AR4

With the classic tubes matching: 6N9P+EL34, GemTune GS-1 Tube Amplifier brings you firm and full mids, smooth highs and also deep lows. It is perfect for vocals (natural and sweet), strings, pipes and jazz. If you would like a tube amp with balance tone, putting it in your living room to enjoy the pure and clean music with a glass of wine during your leisure time. GemTune GS-1 is the one!

Please download the user manual from: https://s3.amazonaws.com/Doctor-001/GemTune+Amp/GemTune+GS-01.pdf
Don't suggest to connect regular headphone jack to amp. Recommend to use Lineout jack.

Specification:
Input Voltage: 110V
Output Power: 8W*2
Frequency Response: 20Hz -- 20kHz
Signal/Noise Ratio: 88dB
Output impedance: 8ohm or 4ohm
Input impedance: 100Kohm
Distortion:

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





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