Push pull kt88 schematic. A good schematic for a 30W integrated class AB triode amp.
Push pull kt88 schematic. In the internet, I have found several schematics (attached, including one from this site). On est évidemment extrêmement loin des actuels push-pull à KT88, sans compter qu'on a là un double push-pull sur chaque voie ! C'est une belle réalisation, après c'est quand même très très gros, ça chauffe comme un vrai radiateur électrique, et ça demande un budget conséquent en terme de lampes. pdf Silvertone 1585 amp silvertone-1485-amplifier-schematic. Feb 27, 2011 · Hi All well i am looking for schematic to build a Ultra Linear Push Pull Tube amp with 250 - 300 Watt or more. Sep 24, 2020 · The hard stuff to understand is how an output transformer works in a typical push-pull tube-based power amplifier. A friend have this schematic? Thx Nov 30, 2009 · Design and construction of a pair of push-pull class-A, Ultra-Linear Mono Block Tube Amplifiers that can be used with several different power vacuum tubes including EL34, KT77, 6L6GC, 6550, KT88, KT90. I normally listen to music on a neighbor friendly level but there are some exceptions. Apr 12, 2016 · That's about perfect for KT88s in a push pull amp (assuming for a monoblock the power transformer and power supply can deliver 250 to 300 mA at full power). Silvertone 1472 push pull amp silvertone-1472-amplifier-schematic. Leave a comment. pdf Dynaco Mark 3 amp dynacomark3. Sakuma but with more transformers and more passive components. I assembled one channel on test bench and it seams that it works fine. Due to the efficiency of my speakers I only Jan 1, 2021 · Output Transformers for KT88 SE Build. Waveforms of signal currents and 2H in series Mar 16, 2017 · Now i'm looking for good schematic in order to build SE amp (hi-fi) with the following parameters: up to 6-10 Watts per channel, KT88 or EL34 tubes, ultralinear application. I couldn't find any schematic available for 6SN7 paired with KT88. Power Supply Schematic - KT120 Push-Pull (PP) Tube Amplifier Layout of the KT120 push-pull amplifier is uncritical and point to point wiring is fine. Jan 9, 2021 · The El84 Push Pull amplifier is an incredibly powerful musical tool and its schematic provides an insight into how it works. Fig 5. Monoblok KT88 PP amp Beautifull hi end PP KT88 design Introduction , design philosophy As usual I try to do things as good as I think can be , and this design includes lots of experience and very sound solutions . A good schematic for a 30W integrated class AB triode amp. The 845 use AC filament current because in a PP design the hum cancels and therefore this Nov 5, 2024 · I have a direct-coupled 6SN7 cathode follower driver idea for push-pull KT88 / 60W output. Written by. The 4 black grid coupling capacitors with short 5K6 stoppers are symmetrically located nearest to the valve holder quandrants, the orientation keeping the anode and screens furthest aside; The two thick purple wires go to the phasplitter outputs with 33K/39K resistors near the balance pot. In the example I'm breadboarding now, Hafler took a standard PP KT66 amp with 6. Dec 30, 2018 · This video describes how i built push pull KT88 integrated amplifier with phono stage. I want to build 50 to 60 watt per channel amps, push pull kt88. Specifically the one with ecc83 in front. zip Audio Research SP3-A preamplifier Audio Research SP-3A. Jul 12, 2023 · I found this KT88 circuit and it got me thinking, would putting a couple KT88s in parallel be a bad idea? Does anyone have any recommendations for a class A amplifier schematic that could do 30 watts? Any advice is appreciated. The scheme of a push-pull amplifier (the input stage and driver which made based on this scheme, developed by genius of sound - Nobu Shishido (WAVAC audio lab)), was developed by famous tube designer - Michael Bron, ideas and sensible comments which helped me to implement this project, for which I am very thankful to him! Nov 11, 2014 · The power supply schematic for the KT120 push-pull monoblock amplifier is shown below (click schematic to enlarge). Thank you Eli. Mikael-Abdellah-SE-KT88-Amplifier. What would be a recommended design? Be aware that I am a tube noob, so I need a complete circuit and description. pdf-schematic. Atarashi modified This index has a wide collection of Vacuum Tube or valve circuits or schematics, OddBlocks - Class-A Push-Pull KT88 Tube Amplifier (12SL7 Driver). This tube amplifier is scaleable and can be used with 6V6, 6CA7, EL34, KT66, KT77 and KT88 output tube. Experience pure class-A operation and powerful 25 Watts output for exceptional audio performance. I found this schematic: OddWatt Audio 5751 SRPP / KT88 Push-Pull Monoblock Tube Amplifier Kits This circuit gives a push-pull output from the two anodes of the B339, and as the amplifier is truly push-pull from this stage through to the output transformer little h. The my project is the most simple Push-Pull design and it has been created on the experience of the my Single-Ended designs. Jan 16, 2018 · Dear Colleagues, My father and I made our first SE tube amplifier and now are preparing to create a more powerful KT88 PP. It's a full choke input using damper diodes for rectification. 000 power amp from Areon, an Italian engineered brand built in China, it uses the classic A12xxx to drive and twin KT88 per channel and rated 50W per channel but I often see amps with the same tubes rated at 80W, I don't need more power, it is plenty and Sep 6, 2014 · Jean Hiraga's single-ended KT88 tube amplifier schematic with 12AX7 (ECC83) tube input stage. These push-pull amplifier input stages are quite different from most of the details of that circuit) that removes the vast majority of power supply artifacts, the new “SST-70′′ power transformer and a quad of Tung-Sol KT-120 output tubes. Any suggestions or possibly direct me to the right area of research and discussion for this newb. Just make sure you have the extra mA. Jute's amp is very simple, but Angela's seems better. 22 kB, 775x400 - viewed 429 times. After assembling a circuit, my usual procedure is to check everything against the schematic, and if everything's OK, then double check it by drawing the The OddWatt 6SL7 SRPP / KT77 SIPP Class-A Ultra Linear DIY Tube Amplifier Project. But KT90 or KT120 could be used with higher Iadc at idle to increase the amount of possible class A. This is an evolution of a pair of mono-blocks that I built with 6L6-GCs from 2 scavenged Baldwin chassis. The second design uses an interstage transformer fed by single-ended driver. Here is the amplifier schematic. The KT88 were big, expensive imported tubes, capable of big power output. The Dalojan KT88 Class A Push-Pull amplifier Some wish full thinking The new amplifier should deliver enough power to produce a realistic sound level while remaining enough headroom for the peaks. You can swap the KT88 output tubes with 6L6, or EL34 / 6CA7. I thought I'd share my latest build with you. Two KT88's are not going to give you an honest continuous commercial rating of 100 watts in anything near class A, AB1, or even AB2 if you run the tubes within their normal range. PP2010 - 50w Hi - End Push Pull Amplifier started on December 7 st , 2009 INTRODUCTION After many years designing single ended amplifiers I have decided to start a series of test about the Push Pull amplifiers. On the last page of the KT88 Titania user manual, the CE declaration of conformity is signed by the Toroidy Transformatory owner. The circuit can be rewired for all 6 volt heaters if desired. The LTP and power amp circuits are similar to Apr 14, 2014 · The scan below is the Dynaco Dynakit Mark III tube amplifier schematic from the instructions manual. Ella Push Pull EL34/KT88 Amplifier Schematic For many years the KT66 valve has been regarded by many as the hall-mark of a high-quality amplifier whether home made or commercially manufactured. Nov 5, 2012 · Hello, I am planning to build a push-pull KT88 based amplifier. The driver tube is 12AU7 preceded by 12AX7 at the input. Tadaatsu Atarashi. It should deliver 4-500mA at between 480 - 520V. One of the problems of the push-pull amplifier is the phase plitter stage. KT120 Push Pull Vacuum Tube Amplifier Part 1. Over 90% of Amplifiers are push pull, and push pull amplifier does not 2nd harmonic and off course does not get 2nd 4th, 6th harmonic vs SE has 2nd, 4th, 6th harmonic. it's rated at 30 watts, is it possible to add an additional pair in parallel to increase the power output? May 14, 2012 · That means, I am thinking in building a KT88 based push-pull class A operating in triode mode. By taking the time to understand the schematic, users can better understand how they can manipulate the sound of their El84 amp so they can achieve the exact sound they desire. Waveforms of signal currents and 2H conventional PP Class A1 triode amp with OPT with B+ at CT. During these exceptions the same perfect quality should be expected. world. Mr. png (16. Oct 16, 2021 · Marek, could you clarify your comment. Push pull KT88s in triode mode can make anywhere from 15 to 30 watts per channel in most schematics I've seen. After looking for a while for a good schematic, and tested severalls stuff. Nov 30, 2009 · A review of the OddWatt Audio 5751 SRPP / KT88 Push-Pull Monoblock Tube Amplifier Kits. Any help will be greatly appreciated. Posted in. The KT88 push-pull model is called Titania. If I wanted to build a parallel push-pull output stage using four 6BQ5/EL84 tubes Jan 16, 2008 · KT88 PP schematic This can be built as aTriode, pentode or ultralinear Go to this address Vintage data or google "A 100W power amplifier" by A. Apr 23, 2013 · Hello, I started to getting parts and building this amplifier some months ago, and yesterday I got one of the two channels assembled. I built this one for myself. 3K to achieve 50-60 watts Jul 30, 2024 · Pp amp kt88 diy ul diagram monoblock schematic nf2 wiring amplifier tube franz help little pull tubesElla push pull el34/kt88 amplifier schematic My kt88 williamson amp buildKt88 pp schematic tube amplifier amp push pull circuit amps hashimoto triode kt schematics diy audio valve trafo fi hi. bmp And some high quality power amps tube this, so why not. It sounds like you have SE amps covered anyhow so maybe shoot for high power, low distortion and wide Jul 12, 2007 · Can any one direct me to a good simple KT88/6550 design? Looking for push pull with ultralinear, probably operating in class AB1. I am currently running 120 mA through transformer and eventually I will increase current Apr 24, 2018 · Oldchen K3 KT88 Push-Pull Tube AmplifierBref: Oldchen is a more important low-cost brand in the tube amplifier world, but with a good relationship with PSVANE, they can equip all of PSVANE's latest optimal tubes, such as on this amplifier where all tubes are newly made by PSVANE, providing exceptional values and good enough quality to begin with a warm tube sound. Cette réalisation s'inspire principalement d'un des schémas présenté par la revue LED N° 160 (Juillet-Août 2000). This one opens up for critique. Power transformer is multiple tap so B+ can be anywhere from 400 to 500V. ) 2 days ago · Mullard EL34 Push-Pull Tube Amp Schematic with Dynaco A420 Page 1 of 1 [ 6 posts ] Page 1 of 1 [ 6 posts ] A pair of KT66 in push pull drives the interstage transformer. Pramote. Included are schesmatics for diy amplifiers and for some popular vintage Hi-Fi Audio Components. They'll make 100 watts a pair in push pull, Single ended, good luck hitting 25. Hello all, I have been keen to start a single ended KT 88 project for some time (as seen on blueglow electronics you tube) The problem is sourcing suitable output transformers in the UK, as Edcor Kt120 Push Pull Amplifier Schematic Diy KT120 PP Mr. 9K 33% ultra linear / 12% cathode feedback transformer (3. pdf Conrad Johnson PV12 conrad-johnson-pv12-pre-amplifier. PCB dimension : 200mm x 135mm Board thickness : 2. Atarashi originally built this amplifier as the fixed bias EL34 Class B Push-Pull monaural amplifier featured on the January 2003 Issue of the "High-Fidelity Audio: Radio Technology". There is a schematic of what I've done so far. The attached schematic shows output stage with cathode feedback (CFB), along with unusual screen grid connections. 5 days ago · Maybe some of you could confirm my understanding of PPP output tubes. Dec 30, 2023 · Hi everyone. smoothing is required, with a corresponding economy in components. KT120 with Ia = 70mAdc and Ea 450Vdc could produce Jan 18, 2020 · They are sold with the Fezz Audio brand name. Oct 3, 2020 · Good point - didn't check the heater requirements. Want around 100 watts, which the KT88 should easily do. Kenneth Olson, from 1955 Radio & Television News, reprinted by Chicago transformer (1. Please Note: KT88 Works Both as Integrated & Power Amplifier If that is the kind of sound you are into, then this is the Push-Pull amplifier that will change your. The schematic is as shown in the picture below. The reason why i opted for KT66 is that it is the 2A3 of the tethrodes and is better then the KT88 and others. The 6N1P driver tube can be swapped with a 6DJ8 / ECC88 / E88CC. Feb 7, 2023 · I would take the following schematic and run the power tubes with KT88 and possibly a tube rectifier. It follows then, that the use of triodes in a push-pull circuit so as to minimize the residual characteristic triode coloration of the sound through cancellation of even order harmonics in the output stage is one approach to hi-fi reproduction. thanks Feb 7, 2012 · OddWatt Audio 5751 SRPP / KT88 Push-Pull Monoblock Tube Amplifier Kits If so, that would make a nice amp but it is a mono-block. The data sheet claims the tubes can output 100w per pair or 200w per quartet, and with designs not typical in most guitar amps, you can certainly do that. This stage should give two equal signals with opposite phase and there is not a very good solution. Voilà donc le choix: Un push pull en kt88. With a number of different KT88 tube amplifiers we have had good results using new production JJ KT88 Blue Glass and Genalex - Gold Lion KT88 tubes. I love off the shelf parts an PC boards when building. Does it worth it? Find More Posts by Ezequiel kel. I designed a driver PCB using two 6SN7's that can drive just most tubes, triode or pentode. I am looking for a schematic diagram for an old TAC KT88 push pull amp. 9K with cathode feedback connected). Power 70W. feel good sound get from May 12, 2021 · Hi, I would like to propose you this design for a KT88 push pull amp. Sep 16, 2006 · I am looking for a detailed KT88 mono schematic utilizing 8 KT88's in push pull with 6sn7's as drivers. my thought was to do it with KT120 or KT88 and ouput transformator Hammond 1650W Best regards Allan I think you can try Citation II mod developed by Stew Hegeman. This idea is visible in some amplifier designed by Mr. J'ouvre donc ce topic afin de ne pas polluer son post, et pouvoir aussi poser les questions (nombreuses) qui me turlupinent. VALVES INTRODUCTION CIRCUIT KT88 SUPPLEMENT ISSUE 2 The KT88 mav be used in pairs in either triode, pentode or ultra-linear push-pull circuits and this Supplement gives circuits and operating data for amplifiers giving outputs of 30 to 400 v,ratts in various conditions of operation. It's a KT88/6550 Push Pull triode connected amp. Quad new what they where doing when they selected the KT66 for their famous Quad II . Mixed biasing (CCS cathode differential with a cap/resistor/diode arrangement that will allow for peaks into class AB. The Dynaco Dynakit Mark III is a mono-block amplifier with a 6AN8 input stage and a push-pull KT88 output stage. not too much and not less than. Sep 4, 2019 · Push-Pull 5881/6L6 Amplifier | Evil Science Audio The Oddblock octal is also quite intriguing, I like the 317HV as the cathode CCS OddWatt Audio 5751 SRPP / KT88 Push-Pull Monoblock Tube Amplifier Kits It's hard to argue against the classic Williamson - The Line Magnetic integrated amplifier LM-216IA is a push-pull amplifier with 4x KT88 tubes in Class AB amplification and delivers 2x22W in triode mode and 2x38W in ultra-linear mode. Being a big beast, it will be assembled on monoblocks, so I would like to put 4x or better 8x KT88 tubes per channel. With a single ended stage you are wasting most of the useful potential of the KT88. Could you please help and advice which one is the better to choose? Or may Jul 4, 2007 · Here are some numbers- Mikael's KT88 single-ended design should make 7 or 8 watts per channel (mine come in at almost 8). Push-pull KT88 class A amp with "universal" driver PCB - Diy tube amplifier schematics ax84. Dec 17, 2013 · Run in class AB1 push/pull, a pair of KT88's are capable of producing 100 watts at 2. to read up on? Design and construction of a pair of push-pull class-A, Ultra-Linear Mono Block Tube Amplifiers that can be used with several different power vacuum tubes including EL34, KT77, 6L6GC, 6550, KT88, KT90. A Pair of Push-Pull Class A, Ultra Linear Mono Block Tube Amplifiers that can be used with several different vacuum tubes including KT I mean you can build a simple SE with only a spare components. There are a few minor deviations from the original schematics. gif Marantz 7C preamplifier Marantz_7C. You may not get enough gain with this arrangement, depending on your preamp's voltage output. Ella Push Pull EL34/KT88 Amplifier Schematic. Oct 19, 2011 · My parts bin has a pair of big Plitron Push-Pull output transformers with "specialist" cathode feedback windings. The Grids are referenced to ground (chassis) by a 220k resistor. The push pull will give you substantially better verifiable performance all around. The title of your post says "stereo". These mono-blocks are now my test bed for this project. . The amp on the breadboard is push-pull triode-mode KT88s, running fixed bias with a plate voltage around 400V, and Tango FX-40-5 output transformers (5k plate-to-plate). Simon. For a single channel, I need 2 tubes, 1 bias power-supply, a highly regulated power supply and a phase shifter . Cet amplificateur à tubes est ma première réalisation après avoir conçu et réalisé plusieurs This amp should be a Michaelson & Austin TVA-1. This page is about unusual PP amps with series output tubes in triode class A, and for use of UL PP OPTs to obtain local Cathode Feedback for much greater linearity in the output stage. In this project such a problem has been solved using a symmetric transformer to . 5% Push-pull class AB1 ultralinear connection, cathode bias Plate voltage Screen taps Plate plus screen current Sep 13, 2006 · Guys Is there anyone out there that has a schematic easy to follow for a KT88 amp with Hammond primary transformer and Hammond out put trany. Not made any THD simulation, just basic schematic/simulation in LTSpice with voltage/current/bias numbers. Thank you Ezequiel. Auto-bias module is not available. Push Pull Output stage configurations. Fig 1. Since this is all in the ear of the beholder, I'll tell you what I hear from a KT88. Power Supply. I have been searching for some time and can’t seem to find one anywhere. Jun 22, 2007 · Mikael Abdellah's Single-Ended (SE) KT88 Tube Amplifier Schematic. If your intention is to build two mono-blocks, you will need 2 more KT88, 1 more output transformer, 1 more power transformer. So behold, my next project. He replaced KT88 with KT120, changed output taps, and got about 120W. this is not the case of a push-pull. Build your own high-quality KT88 Monoblock Tube Amplifiers with the OddWatt Audio 5751 SRPP kit. Oct 16, 2021 · I buyed on ebay PCB Push-pull amplifier for EL34/KT88, as attached photos, whitout schematic. Maybe due to the SE operation. Could you kindly provide a link to the webpage. What are some of your favorite PP 6550/KT88 designs? I'm Single Ended Valve Triode Amplifier has not same tone with Push Psu Amplifier. Then, Mr. Dec 22, 2013 · Hello guys I found this schematic online actually on YouTube I saw the video and the guy post a link of the schematic I copied and I notice that he use 4 diodes for the power supply and 4 diodes for the bias adjustment, I wandering if you guys that have more time experience can help me to May 7, 2021 · Push pull triode, pentode, or Ultralinear. Cet amplificateur à tubes est basé sur un schéma Mullard paru dans les années 1960, ce montage en Push-Pull de KT88 comporte de nombreuses variantes issues de ce schéma. Jan 18, 2017 · Audio Asylum - Tube DIY Asylum - Do It Yourself (DIY) paradise for tube and SET project builders. So, now I'm on to the next quest. Apr 15, 2024 · Ella push pull el34/kt88 amplifier schematicKt88 amp pull push pcb driver universal 300b tube 2a3 el34 class rest size click full Tube kt88 pull push amp srpp schematic amplifier el34 diyaudioprojects vacuum monoblock diy driver class valve kit audio kits audiophileKt88 push pull. 5% total harmonic distortion. I don't get your point. 0mm Copper thickness : 75um ( 4 times normal thickness) ; gold-plated Jan 8, 2017 · Neither thread discusses parallel push pull finals, nor do they discuss fully balanced input/driver circuitry, so these may not be that helpful. Should be able to get about 50 watts out of it anyway with a fixed bias arrangement. Fixed bias provided by Kt88 Tube Amp Schematic. That circuit simply can not work. I would like to make it operation type selectable by using a switch, so I can operate the tubes at Triode, Ultralineal or Pentode, depending on my PWR needs, and mostly for audio comparisons purposes. I have tried Siemens This amp was designed mostly to work with KT88, 6L6, or EL34 tubes in either triode or ultralinear mode. Push pull has minor distortion than SE Amplifier. Parameters: Output Power: 45W Dec 31, 2012 · Bonjour à tous, Nouveau sur le forum, c'est en cherchant le schéma de mon ampli que je suis tombé sur le post de klipschos, et je le suis avec grand intérêt. This Class-A Push-Pull Tube Power Amplifier uses a Pair of Push-Pull Class A, Ultra Linear Mono Block Tube Amplifiers that can be used with several different vacuum tubes including KT77 / 6L6GC / KT88 with a 12SL7 driver and 6NO30 tubes. They do this because of their symmetry. Thank you very much and a happy new year to everyone. With a total anode-plus-screen dissipation of 28 Watts, when operated with cathode bias, its power output, in push-pull pairs, ranges from the 12 Watts of the original Williamson amplifier , to 32 Watts Discover recipes, home ideas, style inspiration and other ideas to try. The sonic result is impressive! Category Push pull kt88 schematic El34 Push Pull Stereo Amplifier. Most output valves in HiFi valve amps (40 Watt and less) are Cathode biased in the same way that pre-amp valves are biased. Mike. Comments. Power Supply Schematic KT88 Push-Pull Tube Amp Diy Electronics, OddWatt Audio SRPP / KT88 Push-Pull Monoblock Tube Amplifier Kits. I would like to build an SE amplifier with two parallel KT88 output tubes. 7MB PDF file) Jul 24, 2016 · Our collection of Hi-Fi Audio Schematics. Jun 8, 2017 · Hi all. The phase inverter is two Rod Coleman's Shunt Cascode Driver with a CCS on the cathodes of the two triodes, whilst the power amp is the Pmosfet cathode-driven 22% anode-grid local feedback configuration already used by Dec 21, 2009 · DIY Push-Pull (PP) 6V6 / 6V6GT Tube Amplifier with Hammond Transformers DIY Push-Pull (PP) 6V6 / 6V6GT Tube Amplifier Schematic This 6V6 amp was built following the push-pull (PP) EL84 / 6V6 Dynaco A-410 output transformer schematic. I have never built a SRPP amp, perhaps it is the opportunity to do it. I'm also looking into building my first tube amp and have been looking for a good schematics. You were looking in the wrong place for the phase splitter. Hope someone here might be able to help. t. These amplifiers are considered at a lower level than single ended but if you want a power enough to drive ESL loudspeakers and low distortion systems like Audiotechnology, Dynaudio Push-pull class AB1 tetrode connection, fixed bias Plate voltage Screen voltage Plate current, idle Plate current, full power Grid bias Load resistance, plate-to-plate Output power Total harmonic distortion at 100w out 560v DC 300v DC 120 mA 290 mA -45 v DC 4500 ohms 100 watts 2. Push pull KT88s in ultralinear mode will probably give you 40 to 50 watts. Fixed bias, high voltage turn on delay and regulated DC for the pre-amp tube filaments. Ella Push Pull EL34/KT88 Amplifier Schematic Most of the parts are in stock except transformers. Sep 3, 2024 · Just wondering, I own and use an early 2. Of course the V2 as it is a differential stage with relatively large tail resistor will balance the huge difference of its input signals Sep 7, 2013 · I have another thread where I'm working out the power supply details for this project. Feb 1, 2015 · KT-88 Push-Pull Project with Hashimoto Transformers This amplifier was featured on the February 2004 Issue of the "High-Fidelity Audio: Radio Technology" by Mr. Therefore 2 output valves that are Cathode biased is described as Class A push pull. A 6N1P tube is used for the input (driver) stage. Please email to us if you want to have a quotation of the available parts Using Auto-Bias Module Manal Bias Dec 15, 2011 · The parallel push-pull o/p stage. That's twice the output of an average pair of 6L6 tubes. One uses a low-level signal transformer as the input and phase splitter, followed by push-pull drivers and KT88 power tubes. But if you want to look at a schematic, focus on the second thread listed above, as it contains a much more honed and streamlined design than my first attempt. The output stage is flexible. The user manual is available on the fezz audio web site; the schematic diagram is not included, unfortunately. This was the closest thing I could find on one of my books. Do you think that you already know how an output transformer works in a push-pull amplifier? Okay, given the above specifications and voltage and current operating points, what is the load impedance seen by either output tube? Electronics EL34 PP power stereo amplifier PCB 1 piece ! This is a bare PCB of a stereo EL34 push-pull tube amplifier. B+ is 485V, grid -18V, and cathodes at ~30V, 94ma cathode current Aug 12, 2013 · Use a 1650TA Hammond and four KT88's in push pull parallel for 100 - 120 watts. Has anyone got a design for some output transformers that could suit such a design? I want to get some prices May 28, 2010 · Using 2 output valves is described as push pull. Tech stuff aside, the KT88 is a gorgeous sounding tube. The Aug 31, 2024 · Kt88 tube amp schematic Ampli stéréo, single ended, kt88, 6550, el34 (page 2) Kt88 pp schematic tube amplifier amp push pull circuit amps hashimoto triode kt schematics diy audio valve trafo fi hi Nov 5, 2024 · I have a direct-coupled 6SN7 cathode follower driver idea for push-pull KT88 / 60W output. Sep 10, 2014 · Remarks - DIY Single-Ended KT88 / 6L6 / EL34 / 6CA7 Tube Amp After I finished wiring the stereo SE tube amplifier, I fired it up and what a glorious sound! It has better sound than my Push-Pull KT88 commercial amp. 12ax7 , Tube amplifier made. Jul 27, 2022 · Hi, I built 2 prototypes of push-pull KT88 amplifiers, with 3. The amplifier stage is based on the Compact Hi-Fi Power Amplifier. You can use your favorite schematic, customize an existing circuit as I often do, or design your own. The opposing tubes, each having similar nonlinearities but operating in opposite polarity, tend to behave together as a more linear amplifier. April 2014. Nov 8, 2014 · Hi everyone. Aug 31, 2014 · Hello All, I am starting the build of an integrated push-pull KT88 stereo amplifier. Here I am using a 10Kohm UL central tap instead of 4 - 5Kohm normally used for the KT88 in commercial amplifier. 2nd harmonic is make good tone for Music. Jul 25, 2018 · Single-Ended vs Push-Pull As I mentioned previously, push-pull (P-P) amplifier, by their nature, cancel a large percentage of even-order harmonics. This schematic suits KT88 or 6550 in triode. Fig 2. Power output is about 25 Watts with pure class-A operation. Problèmes: - il s'agit d'un mono, pensé pour les US, donc pas Design and construction of a pair of push-pull class-A, Ultra-Linear Mono Block Tube Amplifiers that can be used with several different power vacuum tubes including EL34, KT77, 6L6GC, 6550, KT88, KT90. Schematics. Jan 20, 2008 · I have a schematic using a pair of 6SN7's to drive a pair of KT88's in a Push Pull config. 6K load, presumably capable of 25-30 watts of power, then doubled the number of tubes and halved the load to 3. Dec 29, 2009 · Here are two. Another characteristic of many Push-pull amplifier is the high global feedback used to get a good damping factor because to increase the output power often are used output transformers with low turn ratio. Ella Push Pull EL34/KT88 Amplifier Schematic EL34 SE amp schematic. Andrea Ciuffoli - home pagePush-Pull Amplifiers - 10-20W no feedback! Introduction This projects born to explore the Push-Pull amps. Now, before assembling final variant, would like to get rid of amps have very stable B+ because average Po rarely moves above the pure class A levels. ispbpydpeblrwfhuangcfbefuqcnbqsrmgjxohkiwaicmuvpdw