5654 tube preamp 0*2. 5mm headphone output and perfect circuit design: T4 PLUS also with built-in classic headphone amp circuit (2 NE5532), easily to drive 32-300 ohm headphones. Perfect match for FX-Audio devicees using 6JI tubes. With 2 channels and a missing vacuum socket, this preamp from Douk Audio is a versatile and powerful addition to any home audio setup. Nov 10, 2025 · T4 PRO tube preamp meets more HiFi needs: MM phono input, converts phono signal to line level signal, with low-noise integrated circuits and high-quality components to ensure clear and clean sound. Product Description Ampapa A1, more than one simple preamp: MM input, converts phono signal to line level signal, with low-noise integrated circuits and high-quality components to ensure clear and clean sound. that will fit my unit. The 6J1 vacuum tube found in many Chinese preamps (Nobsound Douk Audio, Fosi, Yaqin, etc) can be replaced with this 5654 preamp tube for superior performance. If you are not sure this 6K4 can be used as a replacement for your audio device, please check with your amplifier manufacturer. 5*5. Nov 24, 2021 · Amazon. , easier to drive Apr 16, 2025 · Find many great new & used options and get the best deals for 5654 Tube Phono Preamp for Turntable Stereo Preamp Headphone Amp w/VU Meter HiFi at the best online prices at eBay! Free shipping for many products! Dec 2, 2022 · Buy Pre Amp Kit, 6JL Electronic Amplifier Tube Valve Vacuum Electron Preamp Board Diy Buffer Effector Preamplifier Headphone Treble Midrange Bass Tone Control Musical Fidelity Module Audio 6AK5 5654 6AU6: Amplifiers - Amazon. 5mm AUX input, amplify the low level audio signal from your phone, tablet, PC, MP3 etc. Then i tried the Russian power tubes and Chinese 6J1 (Stock) and there wasn't much to notice but still good bass and when i put all the chinese tubes back the sound was damn good. Douk Audio P1 Preamp has been acclaimed by countless audiophiles worldwide, now we upgrade 6J5 to JAN 5654 tubes according to many audiophiles' feeback, the sound quality will greatly improved. 99 USD Enhance your turntable experience with the Douk Audio HiFi 5654 Tube Phono Preamp, featuring a VU meter and high-quality tube amplification for superior sound. The Douk Audio T4 Pro review, a budget Vacuum Tube Phono Preamplifier with JAN5654W tubes to enhance the audio quality of my vinyl setup. 3. amplifier in World War II radar systems. Anyway, I decided to order a set of what are supposedly NOS Tung Sol 6AK5's from, supposedly, 1945. It was developed by Bell Labs / Western Electric and used extensively as an I. Rolling tubes on this may make a slight change to the coloration of the sound, but it's not going to work anything like real tube rolling since the tubes are NOT actually providing any gain. 2*1. com FREE DELIVERY possible on eligible purchases official website>FreeShipping>coupon>feature : turntable hifi stereo audio preamp,blue tooth5. Jul 31, 2013 · Buy General Electric (GE) 5654 / 5654W / 6AK5 / 6AK5W Electron Vacuum Tube by GE: Tubes - Amazon. Introduction Douk Audio T4 PRO can be used as a MM phono preamp, a tube audio preamp and a headphone amplifier, powerful function in mini size, specially designed for various requirements of home/desktop audio system. Stereo RCA input, amplifies the low level audio signal from your phone, tablet, PC, MP3 etc. Sep 9, 2019 · About this item Tube MM Phono Preamplifier: This Fosi Audio phono preamplifier removes low-frequency noise and ensures clear sound quality by converting phono signals to line-level signals using high-quality components and low-noise integrated circuits. Oct 31, 2025 · MICNAUX Tube Amplifier 5654W Vacuum Tubes Preamp, HD Stereo Receiver Mini Hi-Fi Power Amp with Volume 3 Band EQ Control for Home Audio Stereo Amplifier Active Speaker May 25, 2024 · Phono preamp power supply at lauren venegas blog 6j1 tube ef95 6ak5 preamp 403a vacuum electron amplifier audio5654, tube 5654; röhre 5654 id5862, vacuum pentode 6111 tube preamp schematicFever 6j1 diy kit resistors polarity? : r/diytubes. com: Ampapa A1 Vacuum Tube Phono Preamp, Headphone Amp, Hi-Fi Audiophile Preamplifier for MM Turntable Record Player with Tone Control for Home Stereo Audio System : ElectronicsAbout this item Phono Stage / Audio Pre-Amplifier / Headphone Amp: Ampapa A1, designed to amplify the low audio signal from your MM turntables, Phonograph, MP3, MP4, phone, tablet, PC, CD player, lossles music Jan 21, 2016 · About this item Tested and matched pair (2 tubes) of low-noise 7-Pin NIB/NOS JAN 5654W Vacuum Tubes. The unique preamplification technology delivers pure audio signals, faithfully reproducing crisp high tones, full midrange richness, and deep, rhythmic bass. Made locally in Singapore 3 in 1; preamp, tube output buffer, headphone amp Sweet colouration of ‘tube-sound’ Comes with GE JAN 5654W NOS tubes; premium versions of 6J1 Uses premium audiophile-grade capacitors; Vishay BC, Nichicon FW series & WIMA Tube sockets and RCA ports all gold-plated All premium grade components soldered with WBT 4% silver content solder core Acrylic enclosure The 6AK5 vacuum tube is a miniature 7-pin sharp-cutoff pentode used as RF or IF amplifier especially in high-frequency wide-band applications at frequencies up to 400 MHz. Used – Mint New Price$70 + $9. Quantity pricing for 100 pieces or more is available, please inquire. We guarantee that the 5654W tubes selected Nov 25, 2010 · Finally I decided to start projecting a new line stage with 5654, unfortunately I’ve got 35 of this tubes and in Naples the garbage collection is a main May 25, 2023 · I have a bunch of 5654 tubes and some EL84's so would like to make an se triode amp using them. Swapping tubes on one of these basically just searching for ways to make your $50 phono preamp cost you $100 or $150 Hi guys, For those who have tried those mini tube preamps: Would there be a big difference between something like the dark voice 2 /xduoo t26 (can be used as headphone amp OR tube preamp) which have big bulbs vs the Chinese preamps with 2x 6k4 tubes? The first 2 are full tube vs the others are hybrid. The 5654-RT vacuum tube was produced by Philips in the '80s. Oct 5, 2025 · The Douk Audio T4 PLUS HiFi 5654 Vacuum Tube Preamp Stereo is a high-quality audio component designed for enhancing the sound quality of stereo systems. Because of this close spacing, these tubes have a very high sensitivity to thermal drift (related to thermal expansion of internal tube elements). Nov 6, 2025 · A1 tube preamp / phono preamp / headphone amp is the first product carefully designed by Ampapa, with high-end configuration, powerful functions and amazing looking. com: Douk Audio T4 Plus Vacuum Tube Phono Preamplifier, MM/MC Turntable Audio Preamp, GE5654 Headphone Amp with VU Meter for Record Player Home Stereo : ElectronicsThis item has been tested to certify it can ship safely in its original box or bag to avoid unnecessary packaging. Apr 27, 2022 · Amazon. Our platinum Grade 5654W vacuum tubes are matched within 3% for both plate current (ip) and mutual conductance (Gm) and are backed by our no-nonsense 3-year warranty. Ampapa, always devoted to exploring the design innovation of HiFi and amplifying all passion for music. there’s a bunch worth trying (the term used by most is ‘tube rolling’) if you have the time and money to spend: RCA 6AK5 (nickel/silver plates), Mullard M8100, Sylvania 5654. It sounds great but I hear different tubes sound much different. Nov 23, 2022 · A thorough review of the Ampapa A1 Vacuum Tube Hybrid Phono Preamp Headphone Amp by Durwood. 6j1 6j2 6J4 GE5654 6AK5 6*1 Here are the model of tubes apparently. Replaces the 5654 vacuum tube or 6AK5-W tube types. Douk Audio P1 Preamp has been acclaimed by countless audiophiles worldwide, now we upgrade 6J5 to JAN5654 / GE5654 tubes according to many audiophiles' feedb With 3 kinds of audio input (Bluetooth/USB/RCA) and 2 kinds of output (RCA/3. Which would potentially be the best Oct 2, 2019 · I ought one of those cheap tube preamps on a whim got those exact 5654 tubes as an"upgrade", no difference to the stock 6j2 ones, worse if anything, anyway I've gone back to my Pro-Ject MM preamp much better sounding. PC-USB (CM6642) supporting 24bit 192KHz and compatible with Windows/Mac Oct 28, 2025 · Not only a MM/MC phono preamp, but also a stereo audio preamp and headphone amplifier, especially designed for the audiophiles who pursue HiFi sound. It is designed to safeguard your turntable thanks to its grounding post 3 Switchable Gain Modes: You can switch between 3 modes: 39, 42, or 45 1. 0 (QCC3034) supporting APTX-HD lossless transmission. You can also consider tubes such as EF95, M8100, Hoffman Amplifiers Tube Amp Forum, 5654 tube as power tube - which is the correct OT primary impedance in SE & PP ? The JAN-Philips ECG 5654W replaces the 5654 vacuum tube and 6AK5-W tube types. 6AK5 variants include 6AK5W, 5654, and Western Electric 402A. 5MM AUX and MM turntable input, converting phono signals to Line Level signals with low-noise integrated circuits and high-quality components to remove low-frequency noise ensure clear sound quality. , easier to drive amplifier or active speaker and greatly improve the sound quality. this guide was helpful to me at the start! Tested and matched Pair tube (2PCS) of low-noise 7-Pin United States GE JAN 5654W are considered one of the best of the 5654 / 6AK5 / EF95 family of tubes for audio use. Dec 30, 2009 · What we did is wire up a V1 socket with 5879 and then paralleled another socket (in the preamp V1 position) to use either 6AU6 pentode or 5654 pentode (which I think have the same pinout?) Dec 21, 2019 · Im admittedly a novice when it comes to tube stuffin this case a mini tube pre amp. Jun 17, 2018 · So I have one of those cheesy little 6j1 preamps that I use in my digital chain. 6 300 ratings -38% ₹5,65811 Ampapa A1 Mini 5654 Vacuum Tube Preamp Phono/Turntable Amplifier w/Tone Control From $129. Considered one of the best of the 5654 / 6AK5 / EF95 family of tubes for audio use. Mar 26, 2021 · Specifications: Model: 6K4 Type: Electronic Tube Material: Glass, Metal Color: Transparent Quantity: 2pcs Package Size: 7. Vacuum Tube Preamplifier: Experience exceptional audio fidelity thanks to the bile buffer design, ensuring a clean and transparent signal path. Upgrade your audio experience with our Vacuum Tubes 7-Pin 5654W. , easier to drive amplifiers or active speakers and greatly improve the sound quality. com FREE DELIVERY possible on eligible purchases Next-generation phono preamp for unrivaled sound quality. Enhanced replacement for 6AK5, 6J1, 6J1P, EF95, and 6k4 tubes. Imported JAN5654 tubes Tube 5654 or Röhre 5654 ID5862, Vacuum Pentode, Miniatur-7-Pin-Base B7G, USA 1940 and RF/IF-Stage shown. In early 2017 we purchased an additional 16,000 GE 5654 vacuum tubes. I have been running some GE JAN 5654's which sound lots better than the stock Chinese tubes. Package List: 2 6AK5 RCA NOS-NIB, Pentode replaces any 5654W, EF95 / 6AK5 / CV850 / 6J1P used in the CAD 8000 Trion microphone,… 5654 / E95F / 6AK5W / CV4010 Pentode, NOS-NIB/USA most stock made by General Electric / USA, longlife "W" JAN quality, equivalent of E95F, CV4010… Fosi Audio 7-Pin 5654W Vacuum Tubes for Tube Amplifier Preamplifier- Replace 6AK5 6J1 6J2 6J1P EF95 Fully Matched Pairing Tubes 2PCS Visit the Fosi Audio Store 4. 5cm / 3. Our stock was packaged by RTC for French military. The European designation is EF95. Effective October 2016, all 5654 vacuum tubes sold by Riverstone Audio are precision-matched using state-of-the-art Amplitrex AT1000 digital testers. 99 Shipping This listing has ended. May 18, 2020 · Tested and matched Pair tube (2PCS) of low-noise 7-Pin United States GE JAN 5654W are considered one of the best of the 5654 / 6AK5 / EF95 family of tubes for audio use. Long story short. F. The innovative design and superior performance make it a top choice for audiophiles looking to achieve Introduction A1 tube preamp / phono preamp / headphone amp is the first product carefully designed by Ampapa, with high-end configuration, powerful functions and amazing looking. Ideal for replacing models such as 6AK5, M8100, 6J1, EF95, CV4010, CV403A, CV403B and CV4010. 0in Package Weight: 30g / 1. Jul 1, 2025 · Find many great new & used options and get the best deals for HiFi 5654 Tube Phono Preamp for Turntable Stereo Preamp Headphone Amp w/VU Meter at the best online prices at eBay! Free shipping for many products! The Tubes Audio Preamp 5654W, featuring 6AK5GE NOS tubes, is a masterpiece of vintage audio engineering. I was new to high end headphones, and curious about the ‘tube’ sound May 18, 2019 · So for the testing purposes i left the chinese power tubes and changed it back to 5654 and the sound became less bassy to me. Nov 4, 2021 · Buy Douk Audio T4 PRO Vacuum Tube Phono Preamp, MM Turntable Preamplifier, GE5654 Hi-Fi Headphone Amp for Home Theater/Record Player/Stereo Amplifier/Active Speaker: Amplifiers - Amazon. These were made in the 1980s and have a “smoked” glass bottle. Jun 27, 2019 · With 3 kinds of audio input (Bluetooth/USB/RCA) and 2 kinds of output (RCA/3. The 6J1 vacuum tube found in many Chinese preamps (Nobsound, Douk Audio, Fosi, Yaqin, etc) can be replaced with this 5654 preamp tube for superior performance. what tube preamp (?) is that? i use an FX Audio Tube-03 which is also compatible with the GE JAN 5654Ws, but i use a pair of Voskhod 6J1P-EVs instead. 5mm headphone), P1 can be used as HiFi tube Preamp, USB DAC or headphone amp with HiFi clear, warm, dynamic, sweet tube sound, bringing extremely high-quality listening experience. With such close spacing, the differential thermal expansion between Jul 22, 2011 · Little Dot Tube Amps: Vacuum Tube Rolling Guide A quick introduction: Who is this guide for? (plus some background) When I purchased my first Little Dot amplifier in 2005 I was in a position many of you are in now. Nov 2, 2025 · Ampapa A1, more than one simple preamp: MM input, converts phono signal to line level signal, with low-noise integrated circuits and high-quality components to ensure clear and clean sound. Nov 4, 2019 · I have an entry preamp tube FX Audio Tube 03, already upgraded from new/original 6J1 to old 5654 tube, opamp 5532P to LME49860NA, linear PS LT1084CP. (all from aliexpress, except 5654 tube from Vietnam). Since 2015, we have reduced the weight of outbound packaging per shipment by 41% on average, that’s over 2 Jul 30, 2025 · Find many great new & used options and get the best deals for HiFi 5654 Tube Phono Preamp for Turntable Stereo Preamp Headphone Amp w/VU Meter at the best online prices at eBay! Free shipping for many products! Oct 21, 2024 · 2 Pack 6K4 Tube Valve Vacuum Tube, 7-Pin Tested/Matched Vacuum Tubes Substitute For 5654/6AK5/6AK5W/6Zh1P/6J1/6J1P And Replace WE-403A/403B/EF95 Preamplifier Tubes Buy 6AK5 / EF95 / 5654 vacuum tubes online, in stock and ready to ship! Find reviews, data sheets and specs to upgrade your tube amplifier. . Looks like a total of 2K for the cathode Tube GE 5654 (Unit) Pentode tube for amplifier (RF) wideband with reinforced structure for function mounted on unstable or movable support. com FREE DELIVERY possible on eligible purchases Product Feature Tube Preamplifier: Immerse yourself in the warmth and richness of analog sound with this 6A2, 6K4, and 5654 tube preamplifier. Radio tubes are valves. Generally speaking : fewer but bigger tubes = better sound vs more but smaller tubes? Thanks sick. Bluetooth 5. Is there any part to improve more? Dec 5, 2024 · True Tube Amplification: The preamp circuit elevates the voltage to 54V, ensuring the tubes work to their full potential, delivering a warm and rich experience. These would be the 5654 6AK5W 6096 Tested and matched Pair tube (2PCS) of low-noise 7-Pin United States GE JAN 5654W are considered one of the best of the 5654 / 6AK5 / EF95 family of tubes for audio use. Sep 17, 2025 · Are you an audiophile and looking for an alternative to the Chinese tube buffers/preamps? If you need to change the 6J1, the American equivalent of the 6J1 is the 6AK5 or 6J1P-EV. 1oz Note: Replacing the wrong type of tube may damage your amplifier. Jan 20, 2017 · The 5654 family of pentode tubes (5654W, 5654, 6AK5, 6AK5W, EF95, as well as 6J1 and 6J1P) are characterized by a very close physical spacing between the cathode and grid #1. 0,digital and tube >improve sound level for those audio device with low leve output to get unbelieveable sound without noise. JAN 5725W Tube MM Phono Preamplifier: The BOX X4 phono preamp supports 3. Dec 3, 2017 · Valve pre amp, what is the gain? What is the gain of the valve Valve pre amp circuit? I suspect it is set by 2 or 3 resistors. 5654 tube preamp schematicTube preamp schematic 12ax7 Tube preamp schematic5654 @ the valve museum. This Mullard 6AK5W / 5654 preamp tube has black plates with a large ventilation hole. However, looking at this China circuit board which I bought and assembled, and sounds really good, the resistance values around the 5654 seem awfully high. The tube is notable for its extremely fine grid, and extremely close control grid to cathode spacing Unique and amazing combination in the appearance: integrated T4 PLUS preamp with retro tubes and VU meter into a whole, the pointer dancing in the warm light with strong vintage feelings when enjoy HiFi music, dynamically decorates the audio system and give you a different acoustic enjoyment with large dynamic and sweet tube sound even in This is a cheap op-amp-based solid state phono pre with a tube buffer, not a tube pre. As a final step, prior to shipping, all tube sets are also subjected to an audio test in a preamplifier. This preamplifier is a testament to the timeless sound quality and warmth that only tube technology can provide. 5*2.