Aikido 12au7. Weitere Ideen zu verstärker, technik, amateurfunk ...

Aikido 12au7. Weitere Ideen zu verstärker, technik, amateurfunk ) Which is the best tube type out to build around of the following: ECC85 12AT7 12AX7 12AZ7 12BZ7 5751 12AY7 12AV7 キット価格の59,000円(球無し)はちょいと高過ぎる値付けだと思うが(笑) 取りあえずは1962年製のRCA ClearTop 12AU7を刺してある。 EL156シングルのパワーアンプと組み合わせて聴いているが音はなかなか良い。 Aikido Noval Vacuum Tube Stereo Pre Amplifier Preamp: Condition: Used “ Works great ” Ended: Jan 08, 2022 Related products Highest quality parts were used - Kiwame, Allen-Bradley carbon As stated by John Broskie on the Glassware website: "The LV-Regulator uses a simple RC filter (1 ohm & 10kµF) as a pre-filter before the LDO regulator and holds bypass capacitors for all the electrolytic capacitors and a 4 Free shipping Free shipping Free shipping This is even better than his Grounded Grid which, for the price, is an amazing piece of equipment The only drawback is, should you wish to change parts, it’s doubly difficult to remove the existing ones It is practically de rigueur for hi-fi as it reduces distortion and output impedance, widens and flatten bandwidth, and high levels of gain are rarely needed They languish • Tube Set : 12AU7 X 2 + 12AX7 X 1 + 300B X 2 • Now compatible with low to high impedance headphones • Frequency response (-3dB) : 10Hz – 80kHz 2 Lives for gear I'm looking to build one of the Tubes4hifi preamp kits 585 00 ? kok 12AT7 jarang ya untuk penerapan preamp audio?? Jimmy Auw March 26, 2010 09:49 uses four 12AU7 tubes Outboard power supply for ultra quiet operation For a 12AU7, 100 ohms is next to nothing This is great news for those new to vacuum tubes that want The vta preamp isn't the same as the Don Sachs preamp This was in comparison to my two-chassis, tweaked-out Aikido line stage I don't think I've had a chance to listen to any B1 Looking at the first article, I believe you mean 12AU7, not 12AV7 4 真空管とOPAMPを組み合わせたHyCAAヘッドホンアンプを作った。 部品数も少なく調整するところもないのですぐに完成。回路や詳細はnew_western_elecさんを見て頂くとしてここでは触れない。部品も見たとおりだが入力のコンデンサは松下のPPS 0 類似球として知られています。 AUDIO VALVES: ECC83 12AX7 CV4004 CV492 B339 M8137 6057 VX7059 TWIN TRIODE Long cable runs and low impedance (input) power amps may require a series 0 0 0 150 0 100k 1 An amazing idea for John Broskies' Aikido OTL headphone amplifier I e mailed Kevin, but haven't recieved a reply 00 Outboard power supply for ultra quiet o Applying local feedback in guitar amplifiers is fairly uncommon since most strive to maximise the available gain KT88 SET with CCS-loaded 12AT7 input 00 shipping 97 -0 Aikido, 12AU7 with european NOS, 5Y3 Phillips ECG and cheapo transformer Prima Luna ProLogue Premium Vacuum Tube Stereo Preamplifier - 12AU7 - 5AR4 Attractive chassis In the Aikido amplifier, the input stage’s output holds 50% of the B+ noise, which the modified cathode follower output stage nulls from its output 3 inputs, one output Remote controls on/off, volume, input selection See photos and feedback from active users who have already purchased and used the product: Douk audio HiFi 12AX7 12AU7 Vacuum Tube Preamplifier Home Stereo Audio preamp Inspired by Shigeru Wada LJ PTC 180-93VA C-core Power Transformer for Tube Preamp Aikido 6SN7 But I never listened to 12AU7 in a line stage, just in a 6BQ5 PP amplifier Put in ANY 6sn7 equiv and you can start to hear small differences in sound To find a suitable value for the grid-stopper, simply apply the formula for an RC filter Heard lots of good stuff about it though Classic 35W / channel Ultralinear EL34-based circuit - no electrolytic capacitors This will get you a little more used to reading datasheets and understanding circuit requirements Improvements in the power supply, output transformers and input circuit « on: May 21, 2016, 12:55:08 PM » Preamp: Aikido 6072-6CG7 jawara BT antar-aikido Joined: 25 Nov 2010 7:48 pm Posts: 2 Can I ask, where did you source your circuit board ? bob net on 2008-07-07, 13:57:12 (71 Sign in to My Account 4k 60 1 5 Ampere KT88 - (TRIODE) PARALLEL PUSH-PULL 60WATT AMPLIFIER 1 c Picture Information Our other requirements was: 1) enough connections: 8 inputs, 2 selectable outputs, 2 pass through monitor output/input, 2) a low pass or subsonic filter for when we Em đang xài ampli 5842 + 300B SE , tính làm thêm cái pre cho nó Valve V1a provides voltage amplification approximately equal to mu/2 000 I wouldn't be surprised if the new ones aren't just 12au7's Inputs: 3 The beam tetrode design of the 6L6 allowed RCA to circumvent From beginning It was build with upgrades 0 Terjual 3 4B stereo preamplifier, receiver, pre amp, audiophile io R7 and R14 and putting the original 12AX7 back in place of the 12AU7 for V3 B1 korg and Aikido pres, NLE17 phono, Sowter SUTs, DIY LD91 300b SE/ DIY First Watt F6 & M2, Altec A5 and Model 17 Bad Cat 'Custom Shop' Cub II R 1 x 12 Combo Tube Amplifier Rogue Cronus Fender Guitar Amps Broskie Aikido PH1 Quicksilver Carver 180 amp Cayin A-50T; THOR phono stage Rogue Tempest CAT JL-2 amp Rogers High Fidelity EHF-100 2011 Aguilar DB750 bass … This is one of the 5 phono preamps that I tried out and it came in second only to the expensive Glass Audio Aikido that I built The two I'm considering are based on the Aikido circuit I am interested in hearing opinions of the Audio Research SP3A-1 versus the Conrad Johnson PV11 Neotron made in France maybe the best sounding 2e22 I can't see how you would be disappointed if you tried them The input and driver stage is very similar to that found in the JINRO, TOMEI and Duplicate 42: New Aikido 12Vac PCB Why yet another Aikido PCB? A very good Now if it was a 6SL7, the equivalent miniature would be the 12AT7, again within dissipation limits, as the 12AX7 might have Top I've ditched the pentode Aikido idea and narrowed it down to three options: 1 02 I finally had a chance to build our revised PAS Aikido and listen to it last night and yes, I have to agree, it is an improvement over the older version However, this site assumes that you know some basic principles already, like Ohm's law, roughly how a valve works, etc $43 00 shipping + $8 40 Tangerang Selatan Feligracia 2E22 is 300B for poor man Loctal (AKA Loktal) – medium base; similar to octal but the tube “locks” into place; originally designed for use where equipment is subject to vibration (cars, sex toys, etc) Heptal (AKA 7 pin mini) – small base; similar in size to noval; common for tubes like The tube selection options for the Aikido Noval are extensive, including the 6CG7, 6DJ8, 6H30, 6N1P, 12AU7, and 12AX7 The E80CC has shot up in price over the last couple years 3 Volts / If 1 vintage) in the past These wonderful and relatively cheap tubes are a natural for driving high-impedance headphones and high-capacitance interconnects Vocals mostly Posted: 25 Nov 2010 7:52 pm Just add a pot at the input Rp350 I have not tried the Full Music 12au7's yet Acoustically well treated ECC82 12AU7 Genalex Gold Lion Triode Preamp Tube Audio Posts: 2,760 Any of the Millett hybrid designs is easily made in a Business sign in An AC heater power supply (6V or 12V) can be used, if the heater shunting capacitors C7, C8, C9, C10 are Aikido Noval Stereo PCB The 12AU7 is several stages back and cannot create this problem The 12AU7 delivers a gain of about 50 in above cascode input stage, which is enough to the drive the output tube to full output The "Harmonically enriched Aikido Preamp" with 4 6SN7 tubes looks interesting The 5687/12AU7 dissimilar combinations produced comparable or barely higher 'calculator gain', … まずは標準の300Bで聴く。中華300Bであるが定評のあるものらしい。弾力があって悪くはないが、所謂「真空管アンプ」の音で、DC300AS2を聞きなれた耳には情報量が足らない。勿論エージングが出来ていないということはあるが。 キットには何故かKT88が付いていた。Tri KT88と表示があるのでトライ Home-made Aikido 12AX7/6X5GT Buffer/Preamp The PA555 has a no feedback … I have also tried to remove unnecessary maths and leave only the essential formulae and rules of thumb 8 Gain 103-inch Remote Control PrimaLuna & Lumin iApp Streaming Equipment Lumin U1 Mini Streamer/Transport - good damping factor near to transistorr amp Add Other 9-pin triodes can cost $300 each and also sound great, such as the cinch-waist 6922s from the Amperex 00 THIS IS NOT A COMMON PUSH-PULL! - very low feedback only 16dB Project Page - Mini 12AU7 Tube Preamplifier; Support/Questions - Mini 12AU7 Tube Preamp thread; Top 249 The amplifier runs in class AB1 mode providing about 35W of pure EL34 power! The new L4 EL34i Integrated Amplifier is born! Several PCBs, opamp/transformer phase splitter/driver with EL34s, 12SL7 front end with my own tone stack design, 12AU7 Aikido gain recovery stage after that EQ section, wood front panel with wood knobs -- yeah, Old School for sure, not Others may choose to try the octal variant, using the Headphone amplifier and 12AU7 tube is powered by just 12V DC voltage bnb » чика- Yes, cap coupled output A 12AU7 configured just like the “front half” of the Foreplay III is direct coupled to a 6080 tube configured as a cathode follower 6L6 is the designator for a vacuum tube introduced by Radio Corporation of America in July 1936 I know that the 12au7 tubes I use run $40 each NOS and when you have three of those and then two pentrodes, it is nutty 10) is the voltage amplification stage For example, a 12AX7 input tube presents a mu of 100, so a gain of x50 (+34dB) can be realized Find products of home theater amplifiers with high quality at AliExpress But do not think 2-300B 8k pregledâ ; NIXIE; Januar 19; ECL82 (6Ф3П) integralni SE 1 2 analogaudio long player The PA555 sounds “good for any money Your query returned too many records A tube power amp may have a slightly different frequency response depending on the speakers because of their higher output impedance Shannon Park's DIYTUBE ST-70 driver boards are a standard upgrade of the 7199 boards my r17 is 47 ohms and r18 is 2 ohms I chose this model deliberately for this tube R Line Stage preamplifier With a Built In MM Phono Stage The separate heater xformer is 3A Member; Posts: 48; SOLD Abacus Aikido 12AU7 preamp, … Aikido Noval Tube Preamp Board Rev A as shown in picture Tambah ke Wishlist This is a throughly modern tun=be amplifier that competes with the best of them 9 -0 BACKGROUND John Broskie’s boards are top notch, the parts are bagged and labelled logically, and the included manual is excellent Amplifikacija / Amplification chico_j's listening room featuring Nottingham Analog Systems Space Dec, Nottingham Analog Studio Ace-Space arm, Boston Audio Boston Audio, Pass DIY Pearl Phono, Slim Devices SB3, Audio Sector NON-OS, Tube Cad Journal Aikido 9-pin, Audio Research D-125, DIY Eton/Accuton, Cardas DIY DIY, Kimber 8TC, VPI 16 ut9win - Tuesday 31 May 2022 16:40 And because they are no longer as popular as they were 30-40 years ago, their Mouse over to Zoom-Click to enlarge you might look into the 12U7 One other tube you might want to look into trying is the 12BH7, which will require the same heater pin rewire as a 12AU7 - pin 9 for one heater winding connection, pin 4 and 5 together for the other connection Kab 12AU7 input with 300B as cathode follower In any event, glad you got it fixed! Enjoy Free Shipping Worldwide! Limited Time Sale Easy Return It has a reasonable input impedance of around 100 k-ohms and an output impedance of around 3 k-ohms (Image credit: Blackstar) The diminutive HT-5R packs the bells and whistles of larger contemporary channel-switchers to achieve “beyond bedroom status” in an amp that is nevertheless ideally sized to pedal-down playroom jamming Lastly, they bias differently, just generally different tubes Od NIXIE, Decembar 12, 2018 Duplicate 41: CCDA Noval Stereo PCBs Almost square, being 6 inches wide and 5 The circuit is basically a low noise, low distortion, low output impedance, no global feedback loop one Searches of All Forums are limited to a maximum of 1,000 records the new SP10 is an incredible bargain, there is no way I could have built this preamp You change the plate and cathode resistors on the Aikido (just by even 10%) to 094 inches (inserting and pulling tubes from their sockets won't bend or break this board), double-sided, with 3 Cool, satisfying haptic-touch volume control Sold Out If cost is an issue, the 8CG7 is less then $3 The SOHA (Simple OP Amp Headphone Amplifier) is an inexpensive hybrid amplifier using one twin triode (12AU7, ECC82) at a moderate voltage level for the first stage and an operational amplifier (OPA 604) for the output Tungsol also very good Some of the features include: · Military JAN GE 5814 (12au7a) tubes selected for minimal microphonics This is relatively uncommon with OTL headphone amps, which usually get along best with headphones ~300 ohms SOHA I Top a 4 tube line stage only preamp, 4 inputs, 1 output, remote control input and volume !! Our newest preamp, a real bargain, better than many I've seen for over $800 !! SP10 preamp, fully assembled & tested, with remote control, $520 plus $30 shipping in USA ECC802S (12AU7 / ECC82) SRPP Preamp Circuit Details 12V trigger output Built on a wood base finished in golden oak To get a cut-off frequency of 20kHz we need a grid stopper of: Rg = 1 / (2 pi f C) = 1 / (2 pi × 20000 × 200 × 10^-12) = 39789 ohms The RCA 12au7 black plates are pretty lush tubes you may like them PP2012 - 25 -35 W Extreme Hi - End Push Pull Amplifier Email; Twitter; Facebook; Google + Pinterest; Tumblr; Linkedin UX4 (AKA 4 pin) – large base; common for DHT tubes like 300B, 2A3, 45, etc Juara Kelima: Jonathan, Miracle Audio Jakarta, dengan kombinasi preamp 12AX7 + 12AU7 dan power LM3886, mendapatkan nilai 74,5 Aikido Diy 2e22 SE Right after replacement of resistors The small common 12AU7 tube used in the SP12 w as derived from the 6SN7 octal tube ”The overall sound of the KT150 is thunderously Knowlegeable audiophiles will recognize this tube as the miniature version of the 6SN7 Tubes 47 watchers 47 … January 20, 2022 12ax7 phono preamp schematic Yes, within limits, a 12AU7 could work here "I've had Synergy/Create 300B, 6SN7, 5AR4, 12AX7, 12AU7 and EL84 eatapeach David Same circuit circuit design as our SP12 but on a much larger PCB, with NO room to add a phono section inside It did CONS 6AV5GA SET with 7F7 & 6SN7 input/driver The heaters are all placed in series and this heater string is powered by a portion of the the B+ power-supply voltage, the center third Our pick of the best guitar amps available today Some of the technical highlights of this design include: Cathode Feedback (CFB) utilizing a third OPT winding (allowing NFB use to be minimized); Active Automatic Bias circuit; a two-stage warmup cycle to save your valuable tubes; and a redesigned voltage gain circuit (2 x 12AU7 + 1 x 12ax7) that allows for 200V peak to peak without wave clipping, i 📰︎ r/diyaudio Posts: 26 Rp 250 You appeаr to understand so much about sub V2 with 12AU7 and re-bias for 12AU7 5k Follow for the 'Hacklet' and latest news about hackaday Leben RS-28CX is a really solid preamp Abacus Aikido tube preamplifier with remote It uses a single 12DW7 tube, which is a unique tube in that one section/triode is of 12AX7 specs and the other is of a 12AU7 Multiple inputs and pre-amp outputs Each KT88 output valve delivers approx 300V x 2 = 600V RMS across the output transformer Rp750 Built into an odd sized case from The room size is medium 0 Terjual 4 I'd recommend a little bit of tube rolling on this little guy as it can sound very nice with the right compliment So you get the excellent sonics of the 6SN7, which many believe to be superior than the common miniature tubes (12AX7, 12Au7, etc Trying to get a single tube single stage headphone amp to work well is pretty much a lost cause unless you use a power tube and then you really end up with a follower and not an "amp" because of the low gain and the headphones needing more than available $40 Location: London, England So, I made both Help! The ECC82/12AU7 is well suited to this job because it is cheap and plentiful, its low internal anode resistance allows it to deliver relatively large signal swings into heavy loads, and its moderate transconductance will guarentee fairly low output impedance which ensures wide bandwidth Personally, I like to mix tubes and solid-state to get the best from both worlds Tubes really have that amazing headroom that makes music sound effortless Lifted from the Transcendent Sound site: "Tube Compliment: 2-12AU7 A Flickr photos, groups, and tags related to the "suguhan" Flickr tag The speakers operate at 4 ohms with a 94 sensitivity A fantastic reаd The Last circuit was added on Saturday, August 21, 2021 Try limiting your search by using the Advanced Search to select an author, a date range, a single forum or more specific search terms 💬︎ 6 com: TubeCAD Aikido (click to go to listing) ECC82 12AU7 E82CC ECC802S 5814 6189 6680 CV491 CV4003 CV4034 CV4113 CV4122 F6067 B749 M8136 13D4 13D5 13D8 7316; Jim Cooper Logged Paul "PB" Birkeland Bottlehead Grunt & The Repro Man 88 + $2 All things Aikido with an emphasis on Ki or Universal Energy 12au7 12ay7 12f1501 12f675 12f683 16f628 16f628a 16f84 16f877 18f1220 18f1320 18f252 18f2553 18f2620 18f452 18f4620 18f4685 24lc1025 24lc256 2sk170gr 3d print 6922eh 6c33 6c45 6cg7 6h30 6sn7 ams ccs811 arduino 12AU7 and 6H30 without feedback, normal gain and suitable for I’ve tried 12AU7 and I’m not a fan Write a product review 34) Posted by kennytoma@verizon It adopts advanced imported silicon steel sheet and high-end inductor made of oxygen-free copper wire to form a completely separated CLC filter system, which makes More advanced topologies include SRPP, White Cathode Follower, Aikido variations, CCDA, and more The ACF-2 uses a bipolar power supply and two 203 followers 60 -4 ย A at their Harrison, New Jersey facility in the USA · 0 45A a piece and the 6CG7's will draw LJ PT38 Power Trafo for Tube Preamp 12AU7 12AX7 200V 225V 250V non-CT Dijual tabung tube 6SN7 RCA Made in USA 30 sec start-up output mute for safe operation with solid state power amps Dynaco / Radial Engineering Stereo 70 Series 3 Tube Power Amplifier 17 watts per channelDIYTube ST-35 rev 0 Acknowledgments Pak tabung mana yang lebih cocok untuk preamp 12AX7 atau 12AU7… 30W plate dissipation; quick heating filament The 12AU7 is lower gain (mu ~ 20) vs 6 0 A common thread would be dynamic, clean, extended and 'bold' Tube preamplifier stereo audio signal Not that the SLP90 doesn't reproduce detail 3ボルトが印加されます。 And doesn't sound the same Have a hand built Aikido 6SN7/6SN7 line stage using 1578's and it sounds nice how i would add a MV They sound fantastic, even used ones, used as output tube behind a 6N1P on the input side I can't decide between the one using 12Au7 and the one using 6CF7/6FQ7 Which tube is Find open stores near you This is exactly what we have done with the MEISHU Tonmeister In Aikido, there's less difference between say 12AU7 and 6922 than in other circuits but I've never had the two side by side the 12AU7 is fine for a gain stage but a poor choice for a driving stage The Aikido consists of two legs that function (mostly) independently The most versatile B9A twin-triode valve in history saw the commercial light of day during early 1948 3 - 0 Bogor Langsung Jadi Elc Shop tube preamplifier stereo with fast delivery and free shipping Audio Research SP3A-1 or Conrad Johnson PV11 Aikido Noval Vacuum Tube Stereo Pre Amplifier Preamp Given the time constraints I have to persue this hobby, this very short period of time is a proof of my fondness for … Elekit TU-8500DX 12AU7 Pre-Amplifier Kit Perfect The output stage tubes are working as cathode followers (with a TubeCAD twist of course) I have an ecc82/ecc81 based aikido preamp and current uses early 60's vintage Mullards Nov 19, 2021 #959 Lower gain and noise Looking at building an Aikido for a DAC The novel thing about it is that the 26s' filaments are powered by AC, with 60Hz hum cancelled by hum pots and 120Hz hum cancelled through the stacked arrangement Các bác xem nên làm đèn gì cho hợp và mạch nào hay mà đơn giản chút ? Em đang có EF86 , 5687 , 6H30 , 6C45, 6J5 ,6H6P,12AY6 The input signal is connected directly to the grid of the tube and all of the gain of the PA555 is from the 12AX7 tube 一方の12AX7ですが、ピン4番と5番には12 98 shipping + $2 You can also use differing kinds for the first & second stages Includes a remote control 7µF/400V polypropylene shunting capacitor at the output Well after building the Clarinet the opportunity arose to buy the Kerr McCosh pre amp from HappyBadger (John) and to put the old team back together Trưoc em có ráp cái pre 6J5+6H30 của bác Via nhưng không hợp lắm Sound Valves VTP-100 Vacuum Tube Preamplifier to prеssure the message home a bit, but other than that, that iѕ magnificent bloց Share Assemble 12AU7 Tube Preamplifier Board HiFi Vacuum Tube Pre-amp Board New 6ボルトが印加される仕様です。 At it's introduction, it was heralded as the first twin-triode device engineered for high gain Aikido Cascode The Aikido Cascode amplifier is a compound circuit consisting of a cascode input stage amplifier and an Aikido cathode follower output stage buffer ス ス ス スg スp ス ス ス髟費ソスi スヘ前 スノ使 スp ス ス ストゑソス ス ス ス ス スi ス スg ス ス スワゑソス ス ス スB スd ス ス スg ス ス ス ス スX スヘタ ス ス スS ス スST-160 0019) than 12ax7 half of the mu of the first tube, the gain could be easily altered by altering the tube used in this … In the test setup I had built for the Aikido amplifier, I was able to plug in 12AT7s, 12AU7, 12AV7s, 12AX7s, 12BH7s, and 5751s requires a different circuit 28 220 6AS7 1 Bruce Rozenblit's ECC82 μ-follower preamp 12AU7 / ECC82 Electro Harmonix Gold Pin 24 248 6AS7 2 Feb 11, 2020 This stage gives a low output impedance of around 450 ohms and isolates the phono amp from interconnects The 5687's will draw One advantage is that the heater can be run at 12 In general, however, there is far more value in viewing alternative approaches as complementary rather than competitive My order arrived very quickly and was amazingly well packed Gain/output differences? This article covers the latter, a very nicely made PCB which features an octal (8-pin) tube OTL headphone amp circuit D Offline Now am using a 5751/12au7 aikido preamp (total of eight tubes, wired P2P, it was a labor to do!) So how are these arranged? Mar 18, 2016 - As a hobby project I decided to build a tube headphone amplifier Aikido ya pake PCB aslinya There are only a handful of commercial portable tube headphone amps (there's the recent Japanese one that comes in the custom leather over-the-shoulder bag, and there's Singlepower's old one that used micro-miniature tubes) Remote controls on/off, volume, input selection The JRP Raytheon tall black plate 12AX7 is an awesome choice for many guitar amps and hifi systems! Just $249 C These 3U Mini Dissipantes are a great little chassis Another old survivor (not mine) … We chose to design the new preamplifier around our 6H30 SRPP preamplifier as we are very pleased with the sound, the simple power supply requirements and the amplification of 20 dB The valves are sounding fantastic in a newly built Aikido acf2 buffer pre An aikido phonostage is nothing but two aikidos with an RIAA passive equalization in between To keep the kit price manageable (the kit is about 1/4 of the price of some past OTL amps) we use surprisingly nice sounding electrolytic capacitors as the output coupling capacitors, but of course our kits 56 odgovora; 5 My setup: Denon turntable with Denon 103R, Lundahl LL9206 SUT, aikido phonostage with 5751 and 12au7, aikido phonostage 12sl7/12sn7 and an EL84 PP amp The author wishes to express grateful appreciation to Kevin Kennedy (of Kennedy Tube Audio) Conclusion The Aikido preamp is a novel circuit designed and published by John Broskie Others may choose to try the octal variant, using the 6SN7 (recommended) Has speaker outputs for high-efficiency speakers 12AT7 (mu ~ 60) Re: 6CG7-6FQ7 Vacuum Tube Replacements New manufacture looks more like a 12AU7 The second triode in the ECC82 could of course be used to Image not available Elekit TU-8600S 300B Single Ended Triode Power Amplifier/HPA Kit 4% " LJ LTE156 15k 50mA SE/PP Multifunction Line Transformer 6SN7 12AU7 26 42) Posted by greg7 on 2014-10-30, 09:50:09 (166 Looking at efficiency, distortion etc transistors are vastly superior Wishlist 131: Posted on October 30, 2014 at 09:50:09: greg7 Audiophile Posts: 940 Location: Ohio Joined: January 12, 2003 00 at Antique 6cg7/12au7/6dj8等の真空管が使えるアンプキットを購入。日本でこのキットメーカーの話題も作例も見たことがない。不思議。 36ページからなる詳細な説明書付。ただし英語。 pcb。たいへん丁寧な作り。じんそんさんの基板に似た抜群の出来栄え。とても厚い。 Aikido Amplifier Design Usually, 12AX7 is a common pre-amplifier/line stage tube from what I can gather Tube type: Transmitting Tube, Pentode, air cooled Power/Output The Aikido topology delivers a gain equal to about half of the mu of the input tube used The 12AU7 is NOT a great audio tube Here is my thinking of integrating the phono stage into the preamp all in one chassis My tube pre-amp was based on the two channel front end of my B15N only implemented with 12AX7's with a 12AU7 cathode follower driving an Altec/Peerless 15K to 300 + 300 ohm transformer Here are the contents of a TubeCAD Aikido kit that just arrived 00 Convergent Audio Technology is very good at tuning audio,This CAT SL-1 tube preamplifier use three models of tube in preamp circuit,There are four dual triode tubes, First stage is 12AU7/ECC82 with wide banwidth and sweat sounding, Second stage is high gain tube-12AX7/ECC83 in SRPP configuration,Thus increditable wide frequency response and great … 2 47 95 6AS7 2 310 205 75 (This give me headaches on tube rolling, so much combination ) Both of my Aikidos are wired P2P! Here are the pix: What I would hope to accomplish is to share the PSU for the phono stage with the Aikido D 12AX7/12AU7 - EL-84 Outputs - SS RectifierCompleted on May 2007Sold locally This should make the design process quicker and less confusing, leaving more time for the actual building If we want real benefits using tubes, we need to EL156と比較するとEL156は中低域が豊かで大人の音。 I bought a new 12BH7 and wasn't very happy with it Top ECC82 12AU7 E82CC ECC802S 5814 6189 6680 CV491 CV4003 CV4034 CV4113 CV4122 F6067 B749 M8136 13D4 13D5 13D8 7316; In each case, the circuit worked beautifully, the gain being the only changing variable I will try to move my turntable away from the speakers, maybe this is what is causing the problem The first leg (Fig But tubes are fairly simple to work with, look cool and it’s something different then all the opamp designs 1 + 3 Hifi 12AU7+12AX7+6DJ8 Tube Pre-AMP Stereo Preamplifier Board Base On CAT SL-1 They’re the only tubes that when I insert my However, frequency response into resistive load is flat and wide, with -3dB corner frequency near 300kHz Wanted los gatos 12AU7 Decembar 30, 2021 · 0 komentara Dear Aikido-Ardent Audiophile, Thank you for your purchaseof the TCJ Aikido 9-pin stereo PCB If you want to be sure to stop any possible tendency of oscillation in the cathode follower place a 100 Ohm carbon composite 1/4W Resistor in the R7 Position C5 and R6 remain omited SP14 preamp Some of these 9-pin tubes are dirt cheap and sound great in an Aikido line amplifier, such as the 6BQ7 at less than $2 Cans - AKG K702, Senn HD580, Stax SR-404, Stax SR-30 The 12AU7 driver increases the 5V to approx 50V RMS to drive the KT88 output valves 4 The problem is R11 "tube sound", especially from a pre-amp, is a myth as a well designed tube pre-amp will be indistinguishable from a well designed SS pre-amp You can build the same preamp, as a kit, but in a very plain case, for as little as $1100 Just google Aikido linestage, there‘s plenty written on the topology One persons opinion Each of the 4 sections will be described, showing alternative variations used in different valve amplifiers and why the Williamson approach is the most effective Top Abacus Aikido tube preamplifier with remote 12AU7’s in my experience don’t make good gain-stage tubes I think I’m pretty well sold on the 6SN7 tube Never heard stock model If you decide to try 12BH7's use old stock com Right before I built Eros, I finished Aikido PH2 preamp (also with upgraded parts) 99 9 0 Here's how I'd do the aikido on 160V My Aikido is the bigger sibling to the more basic Aikido outlined in the line Aikido diy 2e22 very impressive とてもワイドレンジで鮮烈な音、分解能もすさまじい。 Mouse over to Zoom-Click to enlarge Member Offline 170 They’re the only tubes that when I insert my Fostex TH-900 (the most GlassWare SRPP+ kit is nicely built, with a good circuit and PCB design that reduces hum and mains spuriae of the tube preamplifier The black face … Title: 5687 Author: RCA Subject: FP-2011-11-11 Created Date: 11/11/2011 11:09:11 PM Srpp Drive RCA-2A3 スV ス ス スO ス ス スE スX スe ス ス スI スA ス ス スv スフ作製 dB: In particular, the Aikido and CCDA designs have a great following and lots of user support on community websites like diyaudio Please note some adblockers will suppress the schematics as well 12BH7 Electro Harmonix twin triode Kristian Kmetz At the time Philips had already developed and patented power pentode designs, which were fast replacing power triodes due to their greater efficiency 0 300 93220 100k 28 (12AU7, 6DJ8) fall between the two groups Joined: 22 Oct 2008 1:37 pm Share Reply Quote I've played around with various 5AR4 For a 12au7-6n6p combo (the 6922 has too much gain), keep all the values given by Broskie but make: r2-r4: 330R r11: replace it by two 1n4007 diodes in serie making enhancements along the way If 12AU7 tubes are used, an 18Vac wallwart will be needed and the following voltage Ranking Keywords S So: a one-box 6SN7-based preamp with lush dynamic sound that can rival the SLP-05 Location: Binh chanhHCMC IIRC the circuit board for the mono Aikido board is just slightly too big to fit in a 1U even if you put it on its side Have you ever considered creating 12AU7 Buffer Preamp 131) I'm looking to build one of the Tubes4hifi preamp kits Purchase Genalex - Gold Lion KT66 vacuum tubes online, in stock and ready to ship! Find reviews, data sheets and specs to upgrade your tube amplifier Footprint: 15 inches wide by 10 inches deep There are 43 circuit schematics available in this category 1,885 00 Bryston 0 The 12AX7-based input stage leaks a third of the B+ ripple in phase to 12AU7's grid, whereupon the 12AU7's inverting gain roughly equals negative three WildPhydeaux Picture withheld by The I The Aikido noval stereo FR-4 PCB is extra thick, 0 but not usually I own many, say 30, old-school power transformers that offer center-tapped high-voltage secondary and both 5Vac and 6 Duplicate 39: New GlassWare Octal Aikido PCB & Kit This new Aikido stereo PCB is a b Will let you know when I recieve Các bác nhín Output and power irons are 1650F and 270HX respectively Aikido preamp: 12AU7 or 6CF7/6FQ7 ??? 166 VTA also offers that preamp fully assembled and tested for $1500 The other value to tweak is the cathode resistor (300 in the schematic for 12AU7) JJ Electronics' EL84 output tubes are driven by RCA's 12AX7A and 12AU7A in push pull configuration, putting out around 17 wpc 5, ZU DL-103, and DIY Rack A new single channel Aikido amplifier printed circuit board for 9-pin triodes, such as the 6AQ8, 6BQ7, 6DJ8, 6CG7, 6FQ7, 6GM8, 6H30, 12AT7, 12AU7, 12AV7, 12AX7, 12BH7, … The ACF-2 is an All-in-One design that holds both the B+ and heater power supplies and two Aikido-ized cathode followers yes, the Aikido topology does seem to deliver the 'audio' for sure The 12AU7 has lower plate resistance compared to the 12AT7 My Mini 12AU7 Tube Preamp, Pioneer SX-D7000, JVC XL-V221BK, JBL L80T, DCM TF700 12au7 12ay7 12f1501 12f675 12f683 16f628 16f628a 16f84 16f877 18f1220 18f1320 18f252 18f2553 18f2620 18f452 18f4620 18f4685 24lc1025 24lc256 2sk170gr 3d print 6922eh 6c33 6c45 6cg7 6h30 6sn7 ams ccs811 … More than 70 years in production Highly recommended for the following equipment: Bad Cat 'Custom Shop' Cub II R 1 x 12 Combo Tube Amplifier Rogue Cronus Fender Guitar Amps Broskie Aikido PH1 Quicksilver Carver 180 amp Unfortunately, their pinout differs from the standard 9-pin dual-triode audio tube, such as the 6DJ8 and 12AU7 (the 5687, however, is pinout compatible with the 6900, 7044, 7119, 7370, 7892, and E182CC) This has 2 type 26 tubes per channel, stacked one on top of the other (Aikido-style), feeding a transformer from the plate of the bottom 26 (through a capacitor, parafeed) Y Aikido driven 2A3 SE Amplifier About 6 weeks after having build the Aikido driven EL84 SE, 2A3 SE amplifier was ready 87 441 530 50 There will be some variation between valve samples, so let's just call it 200pF Location The objective is to provide the best possible MC transformer, cost-no-object WildPhydeaux likes this (-60V) 1 12AV7 --> 12BH7A --> 300B So let's get to the preamp project deatils 2 Preamp will be one 12SL7, active bass and mids, then passive treble with gain recovery from a 12AU7, second 12AU7 completes an Aikido line driver 12AT7 and 12AX7 also have similar frequency response, with … An aikido phonostage is nothing but two aikidos with an RIAA passive equalization in between Used as the input tubes in my homegrown OTL Aikido 5687-out headphone amp, the CV4109s are the quietest tubes from the 6DJ8 family I have ever tried The 6H30 can also be used, but the BOM values aren't listed but he does recommend « Reply #11 on: December 27, 2010, 06:39:37 AM » Andyman001 and mikewalker like this They just aren't suited to modern tube circuits that use … Although this custom Aikido kit isn't all that is needed, it is a great start Register sonnysin168 Member 1 0 COVID-19 FAQs An important rnote egarding the AIKIDO: since this preamp uses four tubes, the original Dynaco PA211 power transformer will not be able to handle the additional filament current demanded by the two additional tubes The same goes for the ~220K resistors on the shunt regulator board above the 12AU7 2) is the voltage amplification stage Aikido tubes: results and values Tube mu rp Rk Ik(m A) B+ R15 R16 Input Gain Input Gain dBs Output Gain Output in dBs Zo 6AQ8 57 9700 100 10 Moko Attempts to learn Something Simple The 12Vac Aikido can be ordered in an 18 volt version using 12AU7 tubes If this project appeals, and you are considering parts upgrades – do it right from the get go $795 NOTE: For phono use with this preamp, you'll need to add a separate phono preamp such as our premium PH14 or PH16 phono preamp below $13 While this seems like plenty, more gain may be needed 111: Aikido preamp: 12AU7 or 6CF7/6FQ7 ??? (6 The original schematic was a combined effort of Bill Pasculle and Alex Cavalli The 1-ohm resistor is a 4W device, so the maximum current output The transformer combines our unique uncut amorphous cobalt core and our dual coil structure with Cardas high purity copper wire in an over sized design 1 29 My system so far is a Pass Labs XA25 SS Amp, and a circa 1988 Tannoy FSMs San Diego Cheap Amplifier, Buy Quality Consumer Electronics Directly from China Suppliers:IWISTAO Tube Buffer Preamplifier Music Fidelity 12AU7 Stereo No Gain Sweet Natural Taste 220V or 110V Available Black HIFI Audio Enjoy Free Shipping Worldwide! Limited Time Sale Easy Return To get more information contact me at: webmaster@audiodesignguide 86 USD) BF 12AU7 / ECC82 Tubes; 12AX7 / ECC83 Tubes; 12AY7 - 6072 Tubes; 12BH7 Tubes; 12DW7 - 7247 Tubes; 6922 / E88CC Tubes; 6AQ8 - ECC85 Tubes; 6C4 - M8080 Tubes; 6CG7 - 6FQ7 Tubes; It runs at 250 B+ and will draw about 42mA $37 2020 - สำรวจบอร์ด "Vacuum Tubes" ของ Piyachart บน Pinterest ดูไอเดียเพิ่มเติม I built my 834p about two years ago, I built an Aikido tube rectified regulated power supply ( John Broskie) with an unbiblical cord,I also added a capacitor switch to change between a 1 uf 1: aikido dumb question (10 Tube fanatics that have been around for more than 10 years, or even better, the ones who were around in the 1950s, know that the 6SN7 is a much better sounding tube than the 12AU7 I would take a big giant guess to say the 6SN7 is a more linear and less noisy tube compared to 12AX7 and 12AU7, once the microphonic issues are resolved 05 The design is pretty much a time tested modified Mullard design dating back 50 years Also I've used 6189 GE (12au7wa), Sylvania and Tungsol (U Price is very reasonable for performance level please see attached My 6X4 & 6922 Aikido Buffer/Preamp Our model Ella custom build 6SN7 Aikido line preamp has been pretty popular and well received as well I was pretty amazed when the unit ran well with only a few minor tweeks - it usually takes 6 months of cursing and swearing:) A headphone amp that uses such design is the Akido Amp New Tube Circuit: The Aikido Amplifier Jaytor, Oct 4, 2021 #10 4th July 2010 | Show parent #9 Endspec 78: Aikido preamp: 12AU7 or 6CF7/6FQ7 ??? (6 This is suitable for nearly all sources equipment and power amplifiers And the inside 18 You might also want to be sure to use a 12AU7 for output or some kind of triode that can deliver a little power (1 Watt will blow your ears off) My 2 cents CAD (1 The 12AU7 (ECC82) is a Twin Triode vacuum tube, it is very popular in the audio world because it is rather rugged and can be operated at lower voltages I've heard aikido on 12AU7 and 6DJ8 it was very pleasant dcollins Maybe a design calls for a 12AU7 tube, but all you have are 6SN7s; rewire it and adjust the bias 61 -4 Amphoon aluminum/wax and or Polypropylene #2 EAR 834L C To get more inspirational shopping ideas, watch live stream and browse Feed chanel in order to pick most-loved items in Amplifier The circuit is designed to power most headphones, including those with a 32 ohm impedance Low Distortion Circuit Tube Preamplifier Preamp Board DIY Kit for 12AX7 12AU7 Not a warm and syrupy tube amp if you are looking for that HiFi Vacuum Tube Preamplifier Stereo Audio Preamp 12AU7 6N2 6Z4 6N4 Tube Ref Shigeru Wada Circuit Description: The circuit of this tube preamp is inspired by Shigeru Wada Circuit 3Vac windings EL84 SEP with 5965 input While I enjoyed what I felt was a "warm" sound from my 12au7 SLP90, what I get from my 6sn7 SLP90 is great resolution & detail (which I suppose is what "imaging" is) and a larger sound stage (within my small listening room) Add to Cart Read 937 times MCM-MOD-2A: DE AIKIDO GAIN STAGE Figure 2 shows the simplified schematics of this new circuit I am in the process of switching to a different preamp 2pF With an optional base plate, thoughtful heat sink tapping and careful components placement, one can even fit a First Watt clone amplifier like an F3 in one Developed by R 1 (1 + 60) = 192 I wіll ԁefіnitely be back Discussions regarding CD recorders, media, software, and tweaks are also to be found here But beyond price range, 9-pins tubes offer many more choices in terms of gain and output impedance Specifically, this is an Aikido input with a White Cathode Follower output, based on John Broskie's design 0 200 0 100k 0 a 12AU7 (V1 and V4), then use jumpers J1 and J4 Prepaid instant pay New New New Објавио Unknown у 10:08 PM New All-in-One Aikido Noval with Tube Rectifier I liked the PS-Tube power supply so much that I decided to add it to the Aikido Noval PCB, making a new All-in-One design I do like the ECC99 though - low distortion near to 0 Projects I Like & Follow Logged Transformers for power supply, one for heater/filament supply which is regulated DC, other for HT which just uses CLC filtering The amp runs on a single 9 pin 12AU7 and an 8 pin 6080 / 6AS7 23 234 55 100 The new PSU uses only one mains transformer, one 5U4 rectifier valve and one choke The Aikido tube kits are probably the best value out there in terms of Found 200 records in Search of Tube DIY Asylum this, like you wrote the book in it or something $47 It is not a complete 6N23P Aikido Cathode Follower Every single tube type was ultra competitive to the best I'd heard and in many cases my favorite I'm quite experienced with 300B to be very confident with that assessment The second 12AU7-based cathode follower drives the external load In my test build, I used a 12AU7 as the input tube and an ECC99 as the output tube, a fine-sounding combination by the way, with a regulated 12Vdc heater power supply per channel Quick links Requirements: Can drive 32 ohm […] Flying Leads Plug&Play CV4034 - Premium 12AU7 ECC82 E82CC ECC802S 5814 6189 6680 CV491 CV4003 CV4113 CV4122 F6067 B749 M8136 13D5 7316 type HiFi 12AU7 Vacuum Tube Pre-Amplifier HiFi 4-Way Input Stereo Home Audio Preamp driving the … TU-8300に刺してみた。 I have … AIKIDO sirotinjski hajend buffer 1 2 3 Discussions about all types of audio hardware, from vintage gear to the latest in hi-rez I don't have an aikido nor have a heard one but I have tried both the 6GM8 and 6922 in the EHHA and I prefer the sound of the 6GM8 over the 6922 in this configuration For 12V heaters, try the 12AU7 (gain of 9), 12FQ7 (gain of 10), or 12AT7 (gain of 20) 6N2P(-EV)はヒーター電圧が6 Great little chassis We tested a front end 12AU7 tube stage as a pre-amplifier in the unit and were blown away by the results! Today, we have re-architected the major PCB and enhanced the power supply 102) I have tried the Aikido board that I am building with AC and DC filament supply 2022 - Erkunde Krafts Pinnwand „Tube Amps“ auf Pinterest Why tubes you might ask, well, because they are awesome Clever 2 ก 98 shipping In two words: darn good 76: 12at7 subs 6gy8 6ez8 12br7a-anyone try 5 Aikido Noval Tube Preamp Board Rev A as shown in picture I Ƅelieve that you just could do with some p This FR-4 PCB isextra thick , 0 Amps: Aikido 6CG7 6H30 Headphone Amp / Torpedo Cans: Magnum / HF2 / MS-PRO / MS-2i / MS-1 / K340 / They’re based on the Aikido circuit boards from VTA 1,985 00 Designed around the incredible open architecture “Aikido” circuit by John Broskie, no compromise has been made in the design and build of this wonderful audio component The above circuit only delivers a gain of about 56, so no negative feedback loop could be employed, bridging output to input Abacus Aikido for sale Audio Hardware 6V The phono stage will be point to point wiring It can be applied to a variety of tubes for line, phono stage, etc Amplifier: Pioneer A-400 Class Super A Click here for all circuit diagrams I have been using the Quicksilver Full-Function preamp for some time now, and I am after a less digital-sounding preamp I wonder if it's a 'waste' to use such 'robust' tubes in a preamp, but cascode mic pre's and Broskie Aikido variants show plenty of satisfied users The tube section is based on the Aikido design which has a solid reputation If you wish to retain an ECC83 for V3 change R9 from 68K to 120K cage 12ax7 12ax7 ecc83 amplifier lauren conrad smile nad 352 amplifier remote case 12ax7 12au7 12ax7 preamplifier kenwood hifi remote full tube headphone amplifier preamplify 21 hifi preamplifier dwayne johnson stencil aikido hifi preamplifier Quote 0 0 0 0 The PA555 uses a 12AX7 tube running at 150 volts In other words, the ACF-2 is a unity-gain buffer for those who do not need any extra voltage gain, but do need more current delivery than a passive line stage would allow Figure 11: Second leg 00 + $8 Anyhow, my version uses a 12B4A instead of the 12au7, to be able to handle a bigger load, and a 6AY11 instead of the 12ax7, because (i) 6AY11 is a cute little stubby compactron that no one uses and (ii) it actually is a tad stronger in gm ( 12AX7の代替球としてご使用になる際は、ヒーター配線の変更を The Aikido 24V board is more than capable of supporting 300V for the B+ voltage and John has a separate section in the Rev A manual addressing HV builds with recommended PSU/Heater configs as well as BOM values for 12AU7 (150V), 6CG7 (200V), and 6DJ8/6922 (100V) 1,906 It's not hard to DIY one though using small low-voltage tubes ) without the huge cost that good 6SN7 tubes now demand 3Vで、真空管のピン4番と5番に6 60 Check out the Educational Articles section of Hover to zoom SOLD Abacus Aikido 12AU7 preamp, outboard power supply, remote 0 Members and 1 Guest are viewing this topic Elekit TU-8800 Single Ended Pentode Power Amplifier/HPA Kit with Lundahl Transformers The 12AT7 has about double the Gm mrigotnomoney Post subject: Re: Another Aikido preamp build (who told me he worked at the Mullard tube factory), "the 6SN7 circuit is virtually identical to that of the 12AU7" I built a master piece with 6SN7 using the identical circuit at the guidance of Kelvin and Highly recommended! 👍︎ 82 Sweet Belonging to my school of Audio Aikido, this amplifier sidesteps power supply noise by incorporating the noise into its normal operation 0:00 Philips ECG 58142:37 Toshiba 12BH76189~WEコンデンサ~5814or12BH7 SRPPドライバ~WEST-CAP~KT88ULという構成の、ドライバ段の真空管を交換して聴き比べてみました。 真空管アンプに関するお話を動画にしました。 オーディオショップや真空管ショップでは聞けないようなお話もしています。 ご質問いただいた It has an EF86 pre with an "Aikido" CF, an active tone stack I found off Angelfire, and a simple PP, cathode biased 6V6 output 0 100 5437 100k 1 Reviews of those who built it were very promising Explore audiophile equipment, hi-fi audio systems and listening rooms for inspiration and ideas A CR-620 comes in for a tune-up and LED conversion A 12AX7 may be happier with a higher value here by Vortex FOR SALE: Buy 2 vintage 12AU7 tubes and get a free headphone amp/DAC! FOR SALE: Chord DAC64 Digital to Analogue Converter; FOR SALE: Sanyo TP 727 Semi-Automatic Turntable Most Musical 6NS7 tube for a Preamp? A request for recommendations by those with experience with different 6SN7 tubes The amplifier was deliberately I like them over Telefunken, Amperex, Siemens and 70's production Mullard (branded as Valvo) 35V RMS 1uF、オペアンプはU2がLT1364、U3がJRCの5532… Found total of 1005 records, Query: 12au7 in All Forums, Time: 0 sec Post subject: Re: Another Aikido preamp build When this arrangement is optimised, it works extremely well, producing a very homogeneous and ‘complete’ sound Vf 6 It is to the 12AU7 what the 6GM8 is to the 6DJ8 The tube complement is 1x 12ax7 and 2x 12au7 e It's my favorite between the 4 $58 Page 11 lists the component values for 12au7, 6cg7, and 6dj8 tubes If you plan to change the V3 to a 12AU7/ECC82 or at least 12AT7/ECC81 leave it as is in Value The Bottlehead Crack is a very inexpensive kit, for only $219 (as of Feb 2011) you get all of this: The Bottlehead Crack Kit TABUNG 6H8 6H8C 6SN7 RUSSIAN MILITARY OTK NOS TUBE Wellness Clinic Fitness Studio @ 186 Lincoln Road, Fredericton, NB, Canada E3B 2A3 Compared to the 12AX7, the 12AU7 (and 12AT7) have much higher power dissipation limits, and, along with a lower output impedance, make for better cathode followers Since there's already a nice +/- 15V supply onboard I may add a solid state HPF and possibly a one band PEQ since I already have a board like that made up Posted: 14 Nov 2008 7:47 pm 094 inch PCB, double-sided, with plated-through heavy 2oz Had a single triode been used in the input stage, then each different tube type would require a different cathode resistor value ” Aikido headphone amp; Audiotron database application; Black+Decker Power Connector Adapter; Class A headphone amplifier with BUF634 (This is why the 6DJ8 is known for a "high-definition" transistor-like sound - the distortion spectra isn’t that different!) Another approach is to use the last half of the Aikido amplifier, with a slight modification I swapped out the JJ EC83 S tubes for some 12AU7 tubes which are a lower gain tube It's easy enough to switch just by changing a few resistors between different valves as long as they have the same valve base /pin connections New Aikido 12Vac PCB In blog number 251, I gave away a hint that this new Aikido PCB would be soon available Author Topic: How many members of Pinoydvd are into Tubes? (Read 112548 times) This is from the data sheet description: "LL1931 is a high performance moving coil step-up transformer But I'm building an Aikido line-stage preamp and plan to use those in the gain stage Distortion, as expected, is nothing to call home about Rather than two stages of 12AT7 on the input, the new design uses two 12AU7 and one 12AX7 triode per channel Jr (追記) KT150に関してのUpscaleAudioのKevin Dealの評価 を見つけたがまさにその評価の通り。 John Broskie in Tube CAD Journal Input is low (around 0 Oh, and while we're at it, here's 6 inch 61 -4 The board allows individual biasing of output tubes for push pull perfection I listen at lower volumes 60-75db 121 Where the typical tube-based line-stage amplifier requires a B+ of 200V to 400V, the Aikido 12Vac can get by with only a B+ voltage of 80Vdc with 6DJ8/6922/E88CC tubes; or 120Vdc with 12AU7/ECC82/ECC802 tubes $495 The Genalex Gold Lion E88CC/6922 is a premium grade selected small signal twin-triode that is a suitable replacement for all 6DJ8, ECC88, 6922, E88CC, and 7308 types 094 Uses a single 12AX7 input stage and L&R 12AU7 driver stages L It has a very loud hum either way when I connect the amp directly to the Aikido output Elekit TU-8150SE 6AQ5/6V6 Single Tube Amp Kit X The sound stage widened even more with more depth and detail this is our very best preamp, using larger 6SN7 octal tubes, in a larger 5" tall chassis The Aikido design introduced about 16 years ago could be built for less than $400 One possible design would be the Aikido Cascade circuit (This give me headaches on tube rolling, so much combination ) Both of my Aikidos are wired P2P! Here are the pix: Aikido headphone amplifier Description: For some time we have been looking for a good headphone amplifier as a supplement to our BUF634 based one but this time preferably triode based, without output transformer and capable of driving low impedance headphones from 16 ohm and up (13) Tambah ke Only comes in black That was back in December of last year, when the A3-Mini three-switch stepped attenuator was revealed, which was over three months ago 102 Thank you $449 No need for capacitor bypass anymore 41) Posted by greg7 on 2014-10-30, 09:50:09 (166 Ignoring any other factors, the choice of tube could rest solely on how much gain is needed from the preamp, and chances are that it’s not very much Cin = 3 Location: Quezon City, Philippines 3 inputs, one output Use either a 6SN7 or, if you must use a 9 pin miniature tube, the 6CG7 Sedangkan PSU ya filament pake AC, sedangkan HV pake LCLCLC dengan rectifier 5U4GB (2) Tambah ke Wishlist I ended wiring it so that the input tube of both aikidos can take, 12ax7, 5751 and 12at7, outputs takes the 12au7 family Od Blackstar HT-5R 1x12 Combo Pete_fi Speaker: Epos M5 For pre-built LoRaWAN IoT sensors with a turnkey web-based IoT monitoring platform please see Telemetry2U LoRaWAN IoT platform Rp 750 E Share Jan 30, 2009 at 1:10 AM Post #392 of 570 digger945 I made upgrades to suit my taste, but the audio quality was good to begin with 12BH7 Electro Harmonix Gold Pin boy Cifte 12AU7 NOS & Genalex Gold Lion Tubes in Pre Video Display Device Samsung The Premiere LSP7T UST Laser Projector Screen Elite Screens Aeon CLR3 0 84k 1,078 If even more gain were required, say to drive an Most were made in the late 50's and 1960's Duplicate 40: PS-17 The PS-17 is a new power-supply RC filter