6k4 vacuum tube review 5*5. The 6K4 is a sub miniature VHF/UHF amplifier triode that Sylvania introduced in 1947 some three years before Mullard launched the equivalent EC70. The 6K4 was designed as an oscillator for use at up to 500 MHz and the design was resistant to shock and vibration. Mar 26, 2021 · 【2PCS tested and matched 6K4 Vacuum Tubes】Each package contains a pair of fully tested and matched 6K4 Vacuum Tubes. Book reviews & recommendations; IMDb Movies, TV & Celebrities; IMDbPro Get Info KT88 Tube Amplifier:Utilising high-quality KT88 power-amp tubes,MOSFET Tube amplifier power out is up to 180W and delivers a dynamic and full-bodied sound output, bringing life to your audio experience. Amazon. 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 2020 tube rolling samples comparison between stock 6k4 and GE jan 5654 tubes in the fx-audio tube-03Chapters:0:00 Intro0:39 Setup levels1:26 A/B tube compari Each package contains a pair of fully tested and matched military version vintage US-manufactured JAN 5654W vacuum tubes(2 PCS). Jul 22, 2011 · This amplifier is officially compatible with the following tubes: "6J4, 6K4, GE5654, JAN 5654W, 6J1, 6J1P, 6AK5, 6BC5, 403A/B, EF40, EF95, and so on". Enhance your audio experience with the PJ. One uses the 6j1 tube the other uses 6k4. I have a 1954 radio's rectifier tube that's still going strong, and that sees 400 volts. 7 3. Am interested to know what differences there are between these two See full list on iiwireviews. This durable and reliable 6K4 tube will allow you to replace a similar failed model or design a tube amplifier/preamplifier. It uses two 6K4 tubes, which render the vocals in a dense fashion, allowing you to fully enjoy the high-fidelity sound. 1oz Package Included: 2 x tubes Note: 1. These vintage US manufactured GE tubes are Mil. QC and PACKAGING -- We take pride in a job well done - all tubes undergo careful inspection, QC procedures and packing before leaving a Riverstone Audio Facility Nov 9, 2023 · Re: Tube rolling and the HTA-200: View attachment 324918 Like most of these Asian-sourced amplifiers, the tube types are Chinese types that often have no direct Western substitute. 5*2. Because the design has current passing through the tubes, the tube must be fully inserted during use! Audio components seen or used in the video: FX-audio Tube-03 preamp, BOSS BR800 multitrack recorder, Zoom H1n recorder ★★ YouTube video Links showing the mono system this preamp is used in,. To be continued if people want to hear about it. The preamplifier has (2) 6K4 tubes. And 5532 opamps KT88 Tube Amplifier:Utilising high-quality KT88 power-amp tubes,MOSFET Tube amplifier power out is up to 180W and delivers a dynamic and full-bodied sound output, bringing life to your audio experience. I upgraded the stock tubes with Russian power tubes (Matching) and GE Jan5654W (Matching - Green letters) about three months back and i was listening as usual. ㅠㅠ Customer Reviews. Based on 8 reviews. It can also directly replace WE-403A/403B/EF95 and ordinary 5654. 0in Packaging weight: 30g/1. May 18, 2019 · I just did a bit of tube rolling back and forth then figured out something strange with my Little Dot MKII amplifier. Write a review. 5cm/ 3. While most of the reviews are positive, some customers complained that the amplifier ‘distorts’ the bass to a certain degree – such a problem is not observed in the case of high-frequency sounds. First trying the pre amp with the 6K4 valve/tube measuring power used, power outp Jan 12, 2019 · Assuming I get a working remote, it is at least a fun toy that allows all common digital media including BT functionality to my "dad" Hi-Fi. Sometimes there are Russian (or, earlier Soviet) substitutes. Jan 20, 2017 · We currently have over 200,000 NOS 5654W vacuum tubes in our inventory. com Oct 2, 2019 · Preamp tubes last a very long time in the right circuit, and will outlast capacitors. MIAOLAI 6K4 Vacuum Bile Tube Preamplifier. Mar 20, 2024 · Equipped with warm sounding 6K4 Vacuum tubes. Substitute for 7-pin 6AK5/6AK5W/6Zh1P/6J1/6J1P tubes. I have personally tested it and achieved good results with the following tubes: - Chinese 6K4 (EF93/6BA6 family) - Chinese 6J4 (EF94/6AU6 family, stock tubes) - GE JAN5654W (EF95/6AK5 family) May 18, 2020 · DO NOT SUBSTITUTE FOR ANY OTHER TYPE OF 7-pin tube. I can say that the BT signal sounds less, err, loss-ish, just streaming music via BT. Hybrid because its a solid state with Vacuum tubes. SandAndGlass, gasolin, waterclocker and 2 others like this. These tubes can be replaced with: 6J1, 6J2, GE5654, 6J3, 6J4, 6J5, 6*1N, 6AK5, etc. With this large inventory, we can be very particular about the tubes we select for use in our high quality matched sets. (JAN) Electron Tubes - Higher Durability and Life. com FREE DELIVERY possible on eligible purchases Jan 21, 2016 · PLEASE check with your ampifier manufacturer or contact Riverstone Audio for advice regarding the substitution of 5654W tubes for 6J2, 6J4, 6J5, 6K4 or other 7-pin vacuum tubes. Oct 21, 2024 · Buy 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 Nov 6, 2024 · Buy 6K4 Vacuum Tube Pair, Clear Soundstage, HiFi and Soft Sound, Low Noise for 7 Pin 5654 6AK5 WE-403A for 6J2 6J3 6J4 6J5 6K5 Devices: Tubes - Amazon. 2*1. I am using a HD-6XX with it and FX Audio DAC-X6 (as a dac). Because the design has current passing through the tubes, the tube must be fully inserted during use! Both Bluetooth and RCA audio input modes are selectable. Brent Jessee has a good page on possible substitutes for fringe-y tubes like these: Oct 22, 2024 · Specification: Model: 6K4 Type: electronic tube material: metal Color: transparent Quantity: 2 pieces Packing size: 7. The BT antena works better than my old one. Spec. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your 안녕하세요! Aliexpress 에서 6K4, GE 5654W진공관 2가지를 구매했습니다!GE 5654W는 2개 주문해서 총 4개가 왔지만동일한 노이즈 문제가 있네요. Featuring NE5532 OP AMP, Bluetooth 5. 7 out of 5 stars 6K4 Vacuum TubeThe 6K4 vacuum tube is a direct replacement for the Dayton Audio HTA200 Hybrid Stereo Tube Amplifier taller (front) tubes. OP chip NE5532 can be replaced by AD827JN or MUSE02 【Bass & Treble Control】 The vacuum tube preamplifier has independent bass knob, treble knob, and main volume knob. 0*2. Dec 18, 2016 · The vacuum tubes give you a different acoustic enjoyment with dynamic, sweet tube sound enjoyment. With its sleek and minimalist design, the P1 is a great choice for music enthusiasts who value both performance and aesthetics. Oct 16, 2022 · The 5654 is not an exact 6K4 equivalent, rather that of the Chinese 6J1/Russian 6Ж1П /EF95/6AK5 (the latter available in much more expensive WE version, including even earlier 403A; should you really want to splurge a little, you may want to read about my considerable previous experience in the well-chronicled Yamamoto CA-04 Preamp, and, more Mar 20, 2024 · Equipped with warm sounding 6K4 Vacuum tubes. Jul 22, 2011 · I just did a bit of tube rolling back and forth then figured out something strange with my Little Dot MKII amplifier. This tube amplifies one channel of the voltage input signal and imprint its warm tonal quality on the signal before it is fed into the power amplifier stage, which boosts the signal even further to drive speakers or other output devices. Customer Reviews: 3. Jan 30, 2020 · FX Audio offers two separate tube pre amps. . 5654W vacuum tubes for T20, P1, P2, Box X2, Box X4 audio devices. 0, USB, and RCA inputs, this mini preamp delivers Hi-Fi stereo sound for headphones ranging from 16 to 300 ohms. The Sylvania logo. 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. This tube corresponds in particular to those integrated on some FX-Audio products : FX-AUDIO TUBE-03E Tube Preamplifier with Tone Control 2x 6K4 Bluetooth Silver; FX-AUDIO TUBE-02 Headphone Tube Amplifier 2x 6K4 Silver May 25, 2023 · The Fosi Audio P1 is an ultra-compact vacuum tube pre-amplifier that delivers exceptional sound quality in a small package. This 6K4 vacuum & valve tube is replaceable with 6J1, GE5654. Purchased from Aliexpress. Oh then it must be the power amps, they also get so hot you can't touch the tubes? right? Jan 1, 2023 · Test the AIYIMA Upgraded 6K4 Tube Pre amplifier. com: 【Upgrade】 AIYIMA T2 6K4 Tube Preamplifier Apr 27, 2022 · Each package contains a pair of fully tested and matched 6K4 Vacuum Tubes. fqautt wbrvp ygz uxybvt puuepy atrqke rvvu mnv zhzn ziad ahypli gwopmq clai dog bazf