Search query: 6n3 tube

Product: Chavis Soviet Union export grade 6H3n tube replacement 6n3 tube 6h3n 567 electron tube
Brand: DAVITU
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Product: 5670 6N3 Preamp Electron Vacuum Tube 9-pin for 6N3P 2c51 5670 396A Audio Amplifier Tube Replacement
Brand: Daerzy
Description: Specifications:
Model: 5670 6N3
Heater Cathode Voltage: ±180V
Anode Voltage: 330V
Anode Dissipation Power: 1.2V
Grid Electrode Negative Voltage: -50V
Grid Electrode Positive Voltage: 0V
Item Size(Single): 5.5 * 2.2cm/ 2.2 * 0.8in (Height * Diameter)
Item Weight(Single): 10g/ 0.4oz

Package List:
1 * Vacuum Tube
∮[5670 6N3 vacuum tube, 9-pin.
∮[For 6N3P, 2c51, 5670, 396A amplifier vacuum tube replacement.
∮[High performance, soft sound, ultra-low noise.
∮[Perfectly work as a head in gain amplifier.
∮[Heater Cathode Voltage: ±180V Anode Voltage: 330V Anode Dissipation Power: 1.2V
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Product: AIYIMA T8 6N3 Digital Tube Preamplifier Bluetooth 5.0 Hi-Fi Headphone Vacuum Tube Preamp for Home Audio Amplifier Wireless Receiver Audio Decoder Preamp PC-USB DAC APTX + with Remote Control
Brand: AIYIMA
Color: Black
Description: FQA：
Q: All my wires are connected. Why is there no sound?
A: 1. Check whether the machine is turned on and whether it has switched to the corresponding input channel.
2. Check whether the back-end connection is correct and whether the volume is in the minimum state.
3. If all the above are normal, check whether the input playback device is silent, paused, or the volume is at its minimum.
Q: Why can't I search for bluetooth pairing names?
A: Due to the design of this machine, bluetooth does not work when using other channels for input. You just need to switch the input to Bluetooth mode.
Q: Why does the sound break
A: Although this product is the front stage of DAC, it also has the function of amplification. If the volume of the rear stage device is turned up to the maximum, the volume of the front stage is also turned up to the maximum, which is easy to distort. At this time, you just need to turn down the volume of the front stage or the rear stage.
Q: Why is there a lot of electrical noise from the horn?
A: If you are not using the original standard power supply, please replace the power supply and test again.Many power supply ripple interference factor is large will cause a lot of current sound.
Q: Why does the speaker make a loud buzzing sound when I plug in the input cord and don't play the audio source?
A: when the signal line without shield is used, the interference signal will enter the power amplifier for amplification. Replacing the signal line with shield can effectively solve the interference sound, or unplug the signal line.
❶ Multiple audio input methods,It Support Bluetooth 5.0/PC-USB/RCA inputs from various devices like iPod, Phone, MP3, TV, DVD players, laptop, desktop computer or other streaming media players etc.,It's a nice vacuum Headphone tube preamp exclusively designed for the customers who pursue HiFi sound!
❷ Tube T8 be used as a headphone tube preamplifier,Can Enjoy high-quality lossless music at any time,RCA/3.5mm headphone output(With priority),RCA output to the powered speaker,amplifier & passive speaker,Headphone output is suitable for 16~300Ω headphones and headset
❸ QCC3031 Bluetooth 5.0,Support APT-X,APT-X LL lossless transmission,Signal transmission faster and stable,let your enjoy the HiFi sound!
❹ Adopt 6N3 tube vacuum design for easy replacement(such as 6N3,6H3,GE5657,396A,2C51,12B4A,GE5670,6H3n-E)with DC 12V power adapter,provide warm retro tube sound,With independent gain adjustment design for treble and bass
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Product: FX AUDIO 6N3 Tube Preamp + OTG PC-USB to Type-C Cable, Tube 06 Preamp with Sound Card and OTG Data Transmission Audio Cable
Brand: FX AUDIO
Description: 1. TUBE-06 Tube Preamplifier with DAC and Sound Card Function
Features:
1.RCA/AUX/USB signal inputs
2.With DAC function
3.6N3 tubes
4.USB chip CM6653, 24Bit/ 96 kHz
5.Inside USB sound card for better sound effect for computer
6.Aluminum alloy shell
7.Bass/ treble/ volume adjustment knobs, high playability
8.Low noise, low distortion, reduce interference
TUBE 06 Specifications:
Chipset: 6N3 USB DAC CM6653 (24Bit / 96kHz)
Interface Input: PC-USB, RCA, AUX
Interface Output: RCA
THD: 0.02%
SNR: -110dB
Frequency Response: ±2 (20Hz-20kHz)
Operated: Toggle Switch and Front Panel Volume Control, Bass /Treble
Power Supply: DC 12V 1.66A
PC-USB to Type-C Cable with OTG Function
Features:
1.Plug and play, no need additional software and driver
2.Durable and long-lasting
3.Simple and chic design
4.Mini size, easy for carrying around
【About This Bundle】 This TUBE 06 tube preamplifer has a function of amplify audio input weak signal and transmit to the back-end amplifier or speakers. When it connect with audio input devices, the PC-USB to USB-C cable will help you to connect it with Type-C audio source devices
【About This Bundle】 This TUBE 06 tube preamplifer has a function of amplify audio input weak signal and transmit to the back-end amplifier or speakers. When it connect with audio input devices, the PC-USB to USB-C cable will help you to connect it with Type-C audio source devices
【BASS/TREBLE Control】The TUBE 06 preamp support RCA/AUX/USB signal input. USB chip CM6653, sampling rate 24Bit/ 96kHz. With DAC and sound card function. Package includes tube preamp, 2 x 6N3 tubes, power supply, RCA cable, user manual, 12 months guarantee card
【About the Cable】 This cable has OTG function which supports data transmission. PC-USB end inserts into D802C PRO USB input interface. Type-C end compatible with all Type-C devices
【Features of the OTG Cable】 Length: 1.3 meters/ 4.2ft. Color: White. Plug and play, no need other drivers, software. Premium quality, freely bend for 10,000 times, durable to use. Compatible with most USB-B and USB-C devices, transmit audio, files or photos freely
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Product: FX AUDIO 6N3 Tube Preamp + Class D Amplifier, Tube 06 Preamp with Sound Card and FX1002A 160W 2 Channel HiFi Class D Digital Amplifier Home Audio for Home Theater System
Brand: FX AUDIO
Description: 1. TUBE-06 Tube Preamplifier with DAC and Sound Card Function
Features:
1.RCA/AUX/USB signal inputs
2.With DAC function
3.6N3 tubes
4.USB chip CM6653, 24Bit/ 96 kHz
5.Inside USB sound card for better sound effect for computer
6.Aluminum alloy shell
7.Bass/ treble/ volume adjustment knobs, high playability
8.Low noise, low distortion, reduce interference
TUBE 03 Specifications:
Chipset: 6N3 USB DAC CM6653 (24Bit / 96kHz)
Interface Input: PC-USB, RCA, AUX
Interface Output: RCA
THD: 0.02%
SNR: -110dB
Frequency Response: ±2 (20Hz-20kHz)
Operated: Toggle Switch and Front Panel Volume Control, Bass /Treble
Power Supply: DC 12V 1.66A
2. 160W+160W FX1002A High Power HiFi 2 Channel Class D Amplifier
- Aluminum alloy metal oxidation casing
- RCA input and L/R passive speakers
- Drive 160 watts power for each amplifier
- HiFi audio chip TDA7498E, power electronic filtered circuit, digital amp audio capacitance
- Built-in speakers protection circuit, coupling capacitor, negative feedback front-end circuit
- Support gain mode switch, set high gain or low gain freely
Technical Specs of FX1002A:
Chipset: TDA7498E
Power Output: 130W + 130W@ 4Ω, 90W+90W @ 6Ω, 65W+65W@ 8 Ω
Interface Input: RCA
Interface Output: Speaker
Impedance: 4-8Ω
THD: 0.07%
SNR: 92dB
Operated: Toggle Swicth and Front Panel Volume Control
【Functions of Preamp and Amp】 This TUBE 03 tube preamplifer and FX502S PRO amplifier can be used together for hifi sound quality. Preamp has a function of amplify audio input weak signal and transmit to the back-end amplifier or speakers. 1002A amplifier is to make the signal strong enough to drive the passive speakers. If you need tube preamp and amplifier, this group will perfectly suit your need
【Features of TUBE 06 Preamp】 The tube preamplifier uses 6N3 tubes that can keep strong musical taste. It has bass, treble and volume control knob, with sound card function for computer. RCA input connect to smartphone, computers, CD/DVD, MP3, blu-ray players. Output interface connect to this FX502S PRO amplifier and passive speakers, or active speakers
【BASS/TREBLE Control】The TUBE 06 preamp support RCA/AUX/USB signal input. USB chip CM6653, sampling rate 24Bit/ 96kHz. With DAC and sound card function. Package includes tube preamp, 2 x 6N3 tubes, power supply, RCA cable, user manual, 12 months guarantee card
【FX1002A Amplifier】 Simple design, RCA input and 2 channel passive speakers output. TUBE 03 preamplifier and 1002A amplifier can ensure hifi sound. Can drive 160 watts speakers
【High Performance Components】 Coupling capacitor, power electronic filter circuit and digital power amp audio inductance inside FX1002A PCB board ensures HiFi sound quality. We provide RCA cable and DC 32V 5A power adapter, 12-month warranty
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Product: FX AUDIO Tube Preamp TUBE-06 HiFi Home Audio Stereo HiFi 6N3 Vacuum Tube Preamplifier for Home Theater Audio Player System CM6653 with Sound Card with Bass Treble Control RCA/USB/AUX Input (Black)
Brand: FX AUDIO
Color: Black
Description: 6N3 Stereo Preamplifier for Home Audio Speakers
When the output signal of the audio source is insufficient or the input sensitivity of active speakers and power amplifier is too low, the sound effect will be bad. After adding this preamplifier, unpleasant digital sound of audio sources will be filtered out. Music will be softer stronger and more beautiful.
1. RCA/AUX/USB signal inputs
2. With DAC function
3. 6N3 tubes
4. USB chip CM6653, 24Bit/ 96 kHz
5. Inside USB sound card for better sound effect for computer
6. Aluminum alloy shell
7. Bass/ treble/ volume adjustment knobs, high playability
8. Low noise, low distortion, reduce interference
Technical Specs:
Chipset: 6N3 USB DAC CM6653 (24Bit / 96kHz)
Interface Input: PC-USB, RCA, AUX
Interface Output: RCA
THD: 0.02%
SNR: -110dB
Frequency Response: ±2 (20Hz-20kHz)
Operated: Toggle Switch and Front Panel Volume Control, Bass /Treble
Power Supply: DC 12V 1.66A
Color: Black/Silver
Unit Weight: 0.56kg
Unit Size: 13x 14 x 7.5cm
Replaceable 6N3 Tubes
This audio preamp uses 6N3 tubes, which can be replaced with 6H3П, 6A8Q, 2C51, ECC42, GE5670, WE396A tubes. Give you dynamic, sweet, soft and warm tube sound enjoyment. Different tubes has different different feelings. The vacuum tube preamplifier also has DAC function.
RCA/ USB/ AUX Inputs
This mini preamp has three input modes: RCA, USB, and AUX. Can connect to most audio devices with USB, RCA, AUX output devices, such as mobile phones, computers, tablets, DVD, MP3/4, TV, etc.
USB Chip CM6653/ Sound Card
The USB chip uses CM6653. Sampling rate is 24Bit/96kHz. The function of the built-in USB sound card is to improve the sound quality of the computer sound card. Connecting to a computer to play music has better dynamic and sweet sound quality.
【Replaceable 6N3 Tubes】 This stereo preamp can filter out the digital sound of common audio sources. This preamp uses 6N3 vacuum tubes. The tubes has softer listening experience, with Hi-Fi sound effect and high performance. 6N3 tubes can be replaced by GE5670, WE396A, 6H3П, 6A8Q, 2C51, ECC42, etc to suit audiophile’s needs
【CM6653 Chip with Sound Card】 USB chip uses CM6653, built-in USB sound card, and has DAC decoding function. Sampling rate of USB is 24Bit/96kHz. The function of the built-in USB sound card will improve the sound quality of the computer sound card. Package includes Tube 06 preamp, 12V 1.6A power cable, USB cable, RCA cable, 12-month warranty
【Input and Output】 This pre amplifiers for home stereo has three inputs - RCA, AUX, PC-USB to support more audio devices. We add free USB cable and RCA cable in the package. The output interface can be connected to power amplifiers and passive speakers, or directly connected to active speakers. (Not a amplifier, not for car audio speakers, not a phono preamp and can't work with a turntable, only used for home audio systems)
【Adjustable Bass and Treble】 This pre amp has independent bass and treble volume control. You can adjust the sound effects according to your preference to achieve the most suitable sound effect for your home audio system. Turn left to decrease the volume, and turn right to increase the volume
【Low-Noise & Low Distortion Design】 The preamplifier home audio features aluminum alloy oxidation drawing process shell and the black immersion gold PCB board. Isolation sheet is added between audio and power supply which will reduce much noise interference and keep clear sound quality. The use of coupled audio capacitors can greatly improve the audio signal path
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Product: [2021 Upgrade] AIYIMA Tube T7 Audio 6N3 Tube Preamp Bluetooth 5.0 Warm Vacuum Buffer Preamplifier with Treble Bass Tone for Home Theater System
Brand: AIYIMA
Description: Features:
1. Tube bile preamplifier, the audio signal input terminal can be connected to the computer, mobile phone, CD, lossless music player and other audio sources.
2. The output terminal can be connected to various digital amplifiers, active multimedia speakers and other audio equipment.
3. With the function of high and low bass adjustment, according to the different parameters of the respective audio equipment, free adjustment to achieve the ideal HiFi sound quality effect.
4.6N3 tube is discontinued. The matched 6N3 tube is brand new or disassembled. All tubes have been tested and shipped randomly.
5. Bluetooth uses QCC3003 Bluetooth 5.0
6. Audio input terminal:
1).RCA audio input (mobile phone/MP3/computer/CD player, etc. can be used as input)
2).Wireless Bluetooth input
7. Audio output terminal:
RCA output (can not be directly connected to passive speakers, you need to connect an amplifier and then connect to passive speakers or directly connect to active speakers)
8. Power DC input: 12V 1.5A power adapter
9. Operation mode:
1). Power switch
2). RCA and Bluetooth switch
3). High and bass adjustment, total tone adjustment
10. Approximate size: 98*33*123mm (excluding protruding parts)
Note:
1. This product is a pre-amplifier, not a power amplifier. It needs to be connected to a post-amplifier or active speakers. It cannot be directly connected to passive speakers, speakers and headphones.
2. The product can not be used in the car, the car voltage is unstable and will burn.
Package included:
1Pc 6N3 Tube Amplifier Preamp
1Pc DC12V 1.5A Power Adapter
RCA/Bluetooth Audio input Manual switch mode, With DC12V/1.5 A power supply(Do not use a power supply exceeding 12V)
RCA input to the computer, CD, phone, iPod and other player and RCA output to the digital amplifiers, active multimedia audio devices for lossless audio(The RCA cables not included)
With treble and bass adjustment,Using tube 6N3 design for easy replacement(6N3,6H3,396A,2C51,12B4A,GE5670,6H3n-E),soft voice.Adopt the Dual run amplifier chip NE5532P power conversion module
All aluminum alloy shell,heavy gold PCB,Build quality is surprisingly solid,Nice touch!With optimal integrated circuit to get powerful, dynamic and sweet sound
This product is a preamplifier,not a power amplifier or phono preamp, can't be used for turntables or passive speakers.It needs to be connected to an Powered speaker and a rear amplifier(Can offer technical support and warranty service!Pls Ask Me:www.amazon.com/hz/help/contact/A3BG62S1F23IH5# .thanks!)
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Product: Matched Pair Military General Electric Unbranded 5670 / 2C51 / 6N3 Black Plate Vintage Audio Tube Valve - BangyBang Tubes
Brand: Unknown
Description: Listing includes 2 matched tubes.
Brand: General Electric, Military Unbranded
Type: Premium Audio Tube
Model: 5670 / 2C51

Black Plate
Round O Getter
Glass Envelope
2 Mica

Country of Manufacturer: USA
Condition: Tested, matched.
Collective value.

LOT5670
Vintage Audio Equipment
Guitar Amplifier Tubes
Hifi Audio Tubes
Triodes, Diodes, Pentodes and Rectifier tubes
Headphone Amplifiers & Microphone tubes
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Product: DollaTek 2Pcs 5670 6N3 Preamp Electron Vacuum Tube 9-pin for 6N3P 2c51 5670 396A Audio Amplifier Tube Replacement
Brand: DollaTek
Description: Features:
5670 6N3 vacuum tube, 9-pin.
For 6N3P, 2c51, 5670, 396A amplifier vacuum tube replacement.
High performance, soft sound, ultra-low noise.
Perfectly work as a head in gain amplifier.
Specifications:
Model: 5670 6N3
Heater Cathode Voltage: ±180V
Anode Voltage: 330V
Anode Dissipation Power: 1.2V
Grid Electrode Negative Voltage: -50V
Grid Electrode Positive Voltage: 0V
Item Size(Single): 5.5 * 2.2cm/ 2.2 * 0.8in (Height * Diameter)
Item Weight(Single): 10g/ 0.4oz
Package List:
2 x Vacuum Tube
5670 6N3 vacuum tube, 9-pin.
For 6N3P, 2c51, 5670, 396A amplifier vacuum tube replacement.
High performance, soft sound, ultra-low noise.
Perfectly work as a head in gain amplifier.
Heater Cathode Voltage: ±180V Anode Voltage: 330V Anode Dissipation Power: 1.2V
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Product: 6n3p Strong Matched Pair 2C51 6CC42 5670 6N3 Made in USSR in 70's
Brand: Vinnitsa tube-factory.
Description: 6N3P,Strong Matched Pair, This tubes was made in USSR in 70's at Vinnitsa tube-factory. Tested with professional tube tester device L3-3. Checked for GM, shorts, leaks, gas. OLD STOCK NEVER BEEN USED. The items will be carefully packed and shipped from UKRAINE by International Air Mail. Transit Time will be approximately 10-26 days. The tube contains gold 0.555 milligram. Filament voltage,V 6,3 Filament current,A 0,27-0,33 Anode voltage,V 150 Anode current,A 0,005-0,012 Anode power,W 1,8 Grid1 voltage,V minus 2 Steepness,mA/V 4,1-7,8 Reverse grid current,uA 0,1 Microphnic noise,mV 100 Gain 28,0-44,0 Socket type rsh8
6n3p Strong Matched Pair
2C51 = 6CC42 = 5670 = 6N3
Made in USSR in 70's
Tested with professional tube tester device L3-3
Checked for shorts, leaks, gas
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Product: Riverstone Audio, 6N3P-E Matched Pair (2 tubes) - Vintage NOS Russian Vacuum Tubes Replacement for 6N3 / 6N3P / 5670 / 5670W / 396A / 2C51 - Amplitrex Tested/Matched - Platinum Grade Pair (6N3P-E)
Brand: Riverstone Audio
Color: 6N3P-E
Description: Our Platinum Grade vacuum tubes are the most thoroughly tested 6N3P-E tubes available. To determine stability, tubes are subjected to multiple test cycles and are matched within 6% for mutual conductance (Gm) and within 5% for tube gain (final testing of these tubes is performed under auto-bias at a fixed plate current ip = 8.8 mA). All matched tubes are auditioned in an amplifier to determine sound quality. FEWER THAN 35% of the 6N3P-E tubes we test meet our high standards for audio use and are chosen for Platinum Grade pairs - we select tubes that show stability during multiple test cycles and exhibit low noise and excellent audio sound during final testing in an audio amplifier. You will not find a more rigorously tested pair of vacuum tubes anywhere. The 6N3P-E tube is the high reliability version ("E" suffix in the tube code) and is a great upgrade for Chinese 6N3 tubes. ***Please Note: We carefully inspect all tubes we use and to the best of our knowledge the 6N3P-E tubes we use in our Platinum Grade sets are NOS tubes. We also guarantee that the tubes will test at NOS levels when received.*** To protect the tubes during shipping and storage, the tubes are supplied in Riverstone Audio's custom "tube cradle" boxes. As a US seller we have confidence in the quality of what we sell. We back these vintage vacuum tubes with a no-nonsense THREE-YEAR money-back warranty - the best warranty in the audio tube business. ***6N3P-E tubes should only be used as a direct replacement for Chinese 6N3 and Russian 6N3P tubes but are generally suitable as a substitute for US/European 5670 / 5670W / 396A / 2C51 tubes (this should be first verified by the amp manufacturer). PLEASE NOTE: AMPLIFIER DAMAGE CAN OCCUR IF YOU SUBSTITUTE THE WRONG TYPE OF TUBE. Before ordering CAREFULLY determine the type of tube used in your amplifier (this information is typically printed or etched on the tube).
ONE PAIR (2 pcs) - 6N3P-E NOS Vacuum Tubes. The 6N3P-E is a vintage Russian dual-triode 9-pin vacuum tube that was manufactured at the Relector plant in Saratov. This is the long-life (denoted by the "E" suffix) version of the 6N3P tube with 3 mica spacers and are considered an exceptional-quality audio tube.
UPGRADE FOR 6N3 TUBES – 6N3P-E tubes are an upgrade/replacement for Chinese 6N3 and Russian 6N3P tubes and are generally suitable as a substitute for US/European 5670 / 5670W / 396A / 2C51 tubes (this should be verified by the amp manufacturer). IMPORTANT: AMPLIFIER DAMAGE CAN OCCUR IF YOU SUBSTITUTE THE WRONG TYPE OF TUBE - Before ordering CAREFULLY determine the type of tube used in your amplifier (tube type is printed on a tube).
TESTED AND MATCHED by experienced engineers using Amplitrex tube testers to evaluate the electrical parameters of the tubes. Tubes are evaluated for plate current (ip), mutual conductance, tube gain, H-K leakage and noise. After matching, the tubes are evaluated for sound quality in an amplifier. If any deficiencies are found the tubes are not sold. LESS THAN 35% of the 6N3P-E tubes we test pass our standard for high fidelity audio use and are selected for these Platinum Grade Pairs.
TEST RESULTS CLEARLY MARKED on the tube boxes with data labels for ip, Gm and tube gain provided. Tubes chosen for these special matched pairs have good balance between tube sections and close electrical parameter matching between the tubes (ip and Gm are within 10% and tubes are matched for gain within 5%). Individual matched pairs will have identical date codes (date codes for the tubes we offer range from 1974 to 1992).
3 YEAR WARRANTY - BUY WITH CONFIDENCE. Our Platinum Grade 6N3P-E vacuum tubes are backed by our no-nonsense 3-year warranty. THE BEST WARRANTY AVAILABLE in the audio tube business. We guarantee that the tubes selected for our matched pairs test at NOS levels. For protection during shipment, we use custom tube boxes (Riverstone Audio’s “Tube Cradle” boxes) and an outer shipping box. Vacuum tubes sold by Riverstone Audio will have the "Riverstone Audio" name, logo and QC label on the boxes.
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Product: LOXJIE P20 Full Balance Tube Amplifier Headphone Power Amplifier (Black)
Brand: LOXJIE
Color: Black
Description: P20 is Loxjie's first full balance tube amplifier headphone power amplifier!It use the military grade 6N3 tube,Plus the well-designed and calibrated amplifier circuit! Let the amplifier have lower distortion under the premise of ensuring"Tube Style"!And the P20 also has true balanced inputs and outputs!This can maximize the performance of the headphones!
Specification
Output Power Unbalanced headphones
32Ω: 385mW
64Ω: 210mW
150Ω: 105mW
300Ω: 55mW
600Ω: 29mW
Balanced headphones
32Ω: 425mW
64Ω: 665mW
150Ω: 565mW
300Ω: 325mW
600Ω: 175mW
THD+N: 0.02%
THD+N: 0.006%
SNR: 97dB
SNR: 102dB
Power Consumption: 10W Standby power: 0.5W
Size: 148x70x128(WxHxD)
Weight: 600g
If you meet any problem about LOXJIE series products,please feel free and contact us.
We will make more improvements to be perfect!
**If you receive an item with the wrong color, please contact us immediately and we will process and resend a brand new product for free. We are in contact with the Amazon team and they will help us investigate and remove the wrong inventory of goods. This error will not happen again in the future, please rest assured. **Warm up for 30 minutes to get better effect Plugged in the item with the included power supply and gave the tubes time to warm up.After 30 minutes, just plugged in your headphones and perfect sound was coming out of the amp.
Military grade 6N3 electronic tubes and carefully tuned circuits.Powerful drive circuit up to 600mW at 64Ω .
Fully balanced headphone amplifier,including balanced input interface.
Hi-End volume control NJW1195 produced by JRC Japan.
Use relay for mute control.Humanized operation with memory function.
Aluminum CNC,very fine workmanship.
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Product: 6z4 tube rectifier + 6N3-J tube cathode output tube preamp amplifier board
Brand: Electronics BoardJINGLUYAO
Description: Specification:
Tube rectifier can better protect 6N3, let tubes last longer, warmer tone.
Dual 180V high voltage power supply, 6z4 filament with 6.3V AC power supply, 6n3 filament choose to use 7.5-8V rectified AC to DC power supply or communicate directly with the 6.3V power supply, are not noise and current sound.
Double-sided PCB labeling, both positive and negative elements can be installed, the installation is to make the picture tube protruding into the chassis, two kinds of assembly methods as you like.
6.3V filament rectification using 7806 three-terminal regulator, some experts say is the best filament voltage 5.9V 6N3, you can try to compare.
Transformers: Dual 180V 37MA; 7.5V 2A; 6.3V 1A
Size 80x140mm
It is soldered kit..
You need to add transformer, the board can work.
Package:
1pc 6z4 tube rectifier + 6N3-J tube cathode output tube preamp amplifier board
Transformers: Dual 180V 37MA; 7.5V 2A; 6.3V 1A
Size: 80x140mm
It is soldered kit
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Product: MUZISHARE X7 KT88 x4 Push-Pull Vacuum Tube Integrated Amp Power Amplifier MM Phono amp Remote Upgrade
Brand: MUZISHARE
Description: Warm reminder: You should take about 100h time to operate the amp.RUN-IN to the amp gives it's best and stable sound.so during the first 100h use time the sound maybe is not the best,you can also use your own run-in method.
Specification:
Rated output power:
25W + 25W (RMS Triode)
45W + 45W (RMS Ultralinear)
Harmonic distortion: 1% (1kHz)
Frequency response: 15Hz ~ 30kHz (-1.5dB)
Input Sensitivity: 280mV; 520mV (pre in)
Input impedance: 100KΩ
Output impedance: 4Ω 8Ω
Signal to noise ratio: 92dB
Left and right output balance: <0.5db
Power consumption: 260W
Vacuum tube: 12AX7 × 1. 12AU7 × 2. KT88 × 4. 5AR4 × 1
Dimension (W × D × H): 410 mm × 335 mm × 198 mm
Net Weight: 23kg
Gross weight: 25kg
Power supply: 110V - 120V 60Hz/50Hz.(For United States)
If you need to use it in Europe, there is a selective switch to set it to be 220V-240V ,It works well in Europe too.
Working conditions: Temperature: 0 ℃ ~ 40 ℃ Humidity: 20% ~ 80%
Storage conditions: Temperature: -20 ℃ ~ 70 ℃ Humidity: 20% ~ 90%

Packing include:
1 x Vacuum tube amplifier
1 x English Instruction manual and a circuit diagram(Schematic)
1 x Infrared remote control
1 x Tube protective cover

ONE-YEAR WARRANTY !!!
MUZISHARE X7 Upgraded version. Upgraded the internal coupling capacitor, is the designer to debug the custom-made silver film capacitor, relative to the classic version of the extension, control, density is better.
MUZISHARE X7 is an integrated Amplifier. This is also a Power Amplifier (there is a group pre-amp input), a Headphone amplifier and this is a amplifier for Phono player too, direct link your phono player to this amplifier to output to speakers.
Pure Handmade,point to point hand welding using two high-quality wide-frequency high-quality Japanese EI output transformer using a high-power Z11 core toroidal power transformer dedicated designed for the machine ， voltage amplification and promote are used tube 5AR4 for rectifier power supply.
Use 12AX7 and 12AU7 vacuum tube for voltage amplification and phase inversion,use KT88 vacuum tube to do AB1 push-pull power amplification; Mute delay function when turn on the amp(about 30 seconds) ；the choice of Japanese ALPS motor potentiometer
Provide Triode and Ultralinear selection function: Triode work mode. soft. pure and sleek. suitable for enjoying vocals. strings Music and other types of music; Ultralinear work. the sound of open. unrestrained. the momentum is good. for large scenes. large dynamic type of music. Peripheral power tube current adjustment knob and current display meter. With pure power amplifier features. can be linked the pre-amp signal input. with the phono function. can be connected to the Phono player
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Product: 6n3p Tubes Strong Matched Pair 2C51 6CC42 5670 6n3 Made in USSR in 1968 Reflector
Brand: REFLECTOR
Description: 6N3P, 2C51 = 6CC42 = 5670=6n3 Strong Matched Pair, Made in USSR in 1968 Tested with professional tube tester device L3-3. Checked for GM, shorts, leaks, gas. OLD STOCK NEVER BEEN USED. The items will be carefully packed and shipped from UKRAINE by International Air Mail. Transit Time will be approximately 10-26 days. The tube contains gold 0.555 milligram. Filament voltage,V 6,3 Filament current,A 0,27-0,33 Anode voltage,V 150 Anode current,A 0,005-0,012 Anode power,W 1,8 Grid1 voltage,V minus 2 Steepness,mA/V 4,1-7,8 Reverse grid current,uA 0,1 Microphnic noise,mV 100 Gain 28,0-44,0 Socket type rsh8
6n3p Tubes Strong Matched Pair
Made in USSR in 1968
Tested with professional tube tester device L3-3
Checked for shorts, leaks, gas
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Product: Riverstone Audio - Tested/Matched Pair (2 Tubes) 7-Pin GE JAN 5654W Fully-Tested Vacuum Tubes - Upgrade for 6AK5 / 6J1 / 6J1P / EF95 - JAN 5654W Platinum Grade Pair
Brand: Riverstone Audio
Description: As a US seller we stand behind our products. All vintage vacuum tubes sold by Riverstone Audio are backed by our no-nonsense 4-YEAR WARRANTY - THE BEST WARRANTY IN THE AUDIO TUBE BUSINESS! ***IMPORTANT: AMPLIFIER DAMAGE CAN OCCUR IF YOU USE THE WRONG TYPE OF TUBE AS A REPLACEMENT. 5654W tubes are a DIRECT substitute only for 7-pin 6J1, 6J1P / 6J1P-EB / 6Zh1P-EV, 6AK5, 6AK5W, EF95 and 403B tubes. For other substitutions, check with your amplifier manufacturer to verify that 5654W tubes can be used in your particular audio device.*** Package contains a closely matched pair (2 tubes) of vintage US-manufactured GE JAN 5654W vacuum tubes. The tubes are Amplitrex TESTED and MATCHED, and subjected to multiple test cycles to determine stability. Plate current and Gm are BOTH matched to within 3%. Matched tubes undergo a final audio sound check to make certain they are indeed audio quality. With our high standards, 5654W tubes were originally designed as a low-noise premium-grade substitute for 6AK5 and EF95 vacuum tubes. The "W" designation refers to ruggedized military-grade tubes with better quality control and internal design changes to enhance reliability. These vintage tubes have found new life as replacements for 7-pin 6J1, 6J1P (6ZH1P-EV), 6AK5 and EF95 tubes and are commonly used by audiophiles for improved sound quality. When received, we guarantee the tubes will test at NOS levels of 4400 micro-mho or higher and a plate current (ip) of 6.4 mA or higher (tested in fixed-bias mode at a plate and screen voltage of 120 V and a grid voltage of -2.0 V). NOTE: Some amplifiers, such as the Little Dot 1+, MK II and MK III, may require circuit board jumpers to be changed when swapping tubes (procedure is outlined in the Little Dot manual). All vacuum tubes we sell are carefully packed for shipping and will have the "Riverstone Audio" name, logo and QC labels on the boxes.
4 YEAR WARRANTY - BUY WITH CONFIDENCE - All vintage vacuum tubes sold by Riverstone Audio are backed by our no-nonsense 4-YEAR warranty. THE BEST WARRANTY AVAILABLE in the audio tube business. We have been testing and using vacuum tubes for many years and know what it takes to select the best vacuum tubes for long life low-noise audio applications.
TESTED and MATCHED Pair (2 tubes) of low-noise 7-Pin NIB/NOS GE JAN 5654W Vacuum Tubes. Considered one of the best of the 5654 / 6AK5 / EF95 family of tubes for audio use. These vintage US manufactured GE tubes are Mil. Spec. (JAN) Electron Tubes - Higher Durability and Life. The 5654W tubes are NOS and were obtained from factory-sealed military surplus boxes.
RIVERSTONE AUDIO utilizes the best available equipment (Amplitrex AT1000) to test and match audio tubes. THE VACUUM TUBES WE SELL ARE 100% TESTED WITH DOCUMENTED TEST RESULTS ATTACHED TO EACH TUBE BOX. Our experienced engineers match vacuum tubes for BOTH plate current and mutual conductance. All tubes we must also pass a specialized life test and an audio sound test. ***All vacuum tubes sold by Riverstone Audio will have the "Riverstone Audio" name, logo and QC label on the boxes***
TEST RESULTS ARE PROVIDED WITH ALL TUBES SOLD BY RIVERSTONE AUDIO. We do not recommend purchasing vintage vacuum tubes unless actual test results are provided with the tubes. We reject 50% to 60% of the tubes we test. We guarantee that the GE 5654W tubes selected for these matched pairs test at NOS levels at or above 4400 micro-mho and a plate current of 6.4 mA or higher.
*****IMPORTANT***** AMPLIFIER DAMAGE CAN OCCUR IF YOU SUBSTITUTE THE WRONG TYPE OF TUBE. 5654W tubes should only be used to directly replace 7-Pin 6J1, 6J1P / 6J1P-EB / 6Zh1P-EV, 6AK5, 6AK5W and EF95 tubes. UNLESS SPECIFICALLY PERMITTED BY YOUR AMPLIFIER MANUFACTURER DO NOT SUBSTITUTE FOR ANY OTHER TYPE OF 7-PIN TUBE.
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Product: FX AUDIO Mini Tube Preamp Built-in Sound Card with Bass and Treble Control HiFi Stereo 6N3 Vacuum Tube Buffer Preamplifier Low Noise RCA Input/Output for Home Audio(with DC 12V/1A Power Supply)
Brand: FX AUDIO
Color: Black
♪ 6N3 TUBE—The tube preamplifier adopts 6N3 tube design,makes the tonality more nature and true,the sound shows detail more rich,satisfy your experience of different sound styles in pursuit sound quality;The volume and bass&treble can be controlled independently to perfectly achieve HiFi effect.
♪ BUILT-IN USB SOUND CARD—The home audio preamp adopts USB chip CM6653 and built-in USB sound card that improve the sound quality of computer sound card;USB sampling rate is 24Bit / 96kHz;Support various sound source input via RCA,AUX and USB jack to connect multiple electronic devices.
♪ ULTRAMODERN ELECTRONIC COMPONENTS—Tube-06 tube preamp adopts ultramodern electronic components,its internal power increase isolation to make audio and power separate completely to reduce interference;And use coupled audio capacitance to enhance audio signal channel.
♪ SUPPORT REPLACE TUBE—The electronic tube can be replaced to meet the requirements of the audiophile. 6N3 tube can be replaced with 6H3N、6A8Q、2C51、ECC42,5670 ,WE396A.
♪ HIGH-QUALITY MATERIAL—Tube-06 tube preamplifier adopts solid aluminum alloy material;PCB board adopts black immersion gold craft,which has the characteristics of stable signal, high temperature resistance, long service life, and not easy to be oxidized；Package Include: 1 x tube preamp, 2 x 6N3 tubes,1 x power supply, 1 x RCA cable,1 x user manual, 1 x security card/1 year warranty.
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Product: FX AUDIO Mini HiFi Tube Preamp with Bass and Treble Control Built-in Sound Card Stereo 6N3 Vacuum Tube Buffer Preamplifier Low Noise RCA/USB/ 3.5mm AUX Input for Home Audio with DC 12V/1A Power Supply
Brand: FX AUDIO
Color: Silver
♪ 6N3 TUBE—The tube preamplifier adopts 6N3 tube design, makes the tonality more nature and true, the sound shows detail more rich, satisfy your experience of different sound styles in pursuit sound quality. The volume and bass&treble can be controlled independently to perfectly achieve HiFi effect
♪ BUILT-IN USB SOUND CARD—The home audio preamp adopts USB chip CM6653 and built-in USB sound card that improve the sound quality of computer sound card. USB sampling rate is 24Bit / 96kHz, support various sound source input via RCA, AUX and USB jack
♪ ULTRAMODERN ELECTRONIC COMPONENTS—Tube-06 tube preamp adopts ultramodern electronic components, its internal power increase isolation to make audio and power separate completely to reduce interference. And use coupled audio capacitance to enhance audio signal channel
♪ SUPPORT REPLACE TUBE—The electronic tube can be replaced to meet the requirements of the audiophile. 6N3 tube can be replaced with 6H3N, 6A8Q, 2C51, ECC42, 5670, WE396A
♪ HIGH-QUALITY MATERIAL—Tube-06 tube preamplifier adopts solid aluminum alloy material, PCB board adopts black immersion gold craft, which has the characteristics of stable signal, high temperature resistance, long service life, and not easy to be oxidized. Package Includes: 1 x tube preamp, 2 x 6N3 tubes,1 x power supply, 1 x RCA cable, 1 x user manual, 1 x security card/1 year warranty
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