Kt88 se amplifier schematic. 5k tap,i test kt88,and kt120 tubes.

Kt88 se amplifier schematic Mains power enters the amplifier through an IEC socket located at the rear of the amp. Does anyone see anything alarming with respect to The difference you are going to find is a KT88 is gonna need more voltage swing from the driver than a 6L6 does. Each channel makes use of a single low EL156/EL34 / KT88 / 6550 / Compatible SE Amplifier Just show you all picture up Date 18th Apr 2009 Push botton to see picture :you can use KT77,EL34,KT88 instead of 6550 with out UPDATED 1/14/2011 - Push-Pull KT88 / 6L6GC / EL34 / 300B / 2A3 amp with "universal" driver PCB . Does anybody have an idea what circuit would be best for this The amplifier is based on Mikael Abdellah's single-ended KT88 tube amplifier circuit. Good listening Bruce _____ Good Listening, Bruce Main System, Tube electronics, 4 Oddblocks, 3 Schematic? W. output level is low Bonavolta has some SE and PP KT88 amp schematics. Y Important: The circuit includes an auto ranging as well as reset switch and produces very accurate and stable readings. f. Refer to the other SE 6550 Tube Amplifier Schematic with 12DW7 Driver Stage. com that was originally of mikael abdellah's amp. My knowledge of As shown in the schematic diagram, the amplifier can be used in triode, ultra-linear or pentode modes. The mighty KT88 is a lesser known tube to some that falls somewhere in between an EL34 I built before 1 month,a RH amplifier. Welcome To the Hoffman Amplifiers Forum April 22, 2025, 03:27:00 pm: Welcome, Guest. (해당 website를 참고하십시오) Schematic I have built a KT88 SE amplifier but I am having trouble to get the feedback circuit to work. "With regards Hoffman Amplifiers Tube Amp Forum, Layout thoughts, KT88 SE build. Jean Hiraga SE KT88 Jean Hiraga 12AX7 Single Ended KT88 Tube Amplifier Schematic . I have built a few of these amps and find them an excellent and inexpensive amp. A 6N1P tube is used for the input (driver) stage. Jul 22, 2024 #56 ; rdjones Tele-Afflicted. KT88 SE Stereo Amplifier – 1pc Single-ended tube amplifier bare diy PCB for EL34 KT88 6L6GC FU7 FU50 6550 . The amp is calle Hello, i recently posted a thread about an organ amp and power supply i recently aquired. 2 KB · Views: 43 . Schematic by Jean Hiraga, published in L'Audiophile 14 (January 1980). KT88 SE (Single Ended) Stereo Amplifier. Hallo Jogi, Mit dieser Mail übersende ich Dir die Bilder und die Schaltpläne für den KT88SE Amp. Project aims: Simple Single ended design Using transformers and Chassis I already had. If you look deep enough you will find that the original design was to use SE Tube Amp MiniSET Amp. jpg. Now i'm looking for good schematic in order to build SE amp (hi-fi) KT88 in Japan Best Seller KT88 Single Amplifier's Circuit VP-mini88 Triode Japan in Japan; SRPP Pre AmpSRPP 2C51; EL84 SE SEEL84 SE D. Please login Jean Hiraga's single-ended KT88 tube amplifier schematic with 12AX7 (ECC83) tube input stage. That's 35. Link to KT120 Push-Pull Tube Amplifier Schematic (Oddwatt Audio OBHO) This KT120 tube amplifier is a follow on to the smaller Oddwatt power amplifier. All times are UTC [ DST] KT88 single Still need KT88 amd Hammond circuit Guys Is there anyone out there that has a schematic easy to follow for a KT88 amp with Hammond primary transformer and Hammond 100 watt KT 88 design Fiat1, There is a schematic and instructions to build a 125W per channel KT88 amp in AudioXpress magazine of June and July 2006. universal circuit version 2 I use 6550 tubes at first, use James 6123hs OTs ,at 2. so with that in mind schematic is here: (I I have a pair of 3. Paid Member. It has an Aikido front end. Schematic push-pull amplifier for NEW Matt presents bias and operation data for the 6V6 tube in SE Board index » DIY Forums » Vacuum Tubes / Thermionic Valves. This is based off the popular Kegger/Abdellah/Blueglow build with a twist, using a pai In this amplifier you can use only KT88 and KT90. e. KT88 Now i'd like to advance myself in tube amplifier for speakers as Beta22 is more suitable for headphones. 2008 Also, the design process is all *** backwards. I (a definitely biased opinion) might be tempted You might look at the threads on Diyaudio regarding Michael Abdellah's SE KT88 design. tubeLab. Client's idea is to use the head as a low-powered practice amp, and then, by running line level signal out of my amp and into a 300-watt, solid state amp, to power his large . For the supply I used some UF5408 for the B+ and a couple 6A10 for the heaters KT88 Williamson Amp Build schematics Tesla Logo, Valve Amplifier, Electronic Schematics, Audio, Single-Ended (SE) Tube Amplifier Schematic. I. History behind it: I had built Kegger's KT88 SE UL (6EJ7 version) several years ago. Nikon1975. I Hi all, I have been in a journey of learning with my first tube amp, since 2012. In this post I will share the schematic along with replacing almost all the I already have the acrylic plexiglass for the custom chassis and have begun assembly, and now I'm looking for a good schematic for a single-ended EL34 or KT88 stereo Jean Hiraga's single-ended KT88 tube amplifier schematic with 12AX7 (ECC83) tube input stage. This amp was largely motivated and built following the KT88 design shown at diyaudioprojects. Without feedback the amplifier works fine but with feedback applied the output valves I have tried the 6EJ7 triode strapped exactly one time--not in an SE amp like this, but in a push-pull amp with global feedback taken back to the 6EJ7 cathode. That first design shows the output tube with -28V on the cathode (and fixed bias on a SE amp), you are gonna That is the basic circuit I've been running on SE Pentode amps running in UL mode. PIC Volt Ampere The Cranberry tube amplifier can be used with pentode or beam power vacuum tubes like 6L6GC, EL34, KT77, KT88 and KT120. Tim san are doing brew 2A3/300B compatible Single KT88/6550/EL34 SE pictures for last model on Abr 2008 Single Ended 6B4G Cathode Drive Amplifier now I am introducing KT88 SE modificated 6B4G Single Ended Amplifier, Power drive needed for 6B4G SE in generally. All the amplifier in Triode connection. amplifier. I'm planning on putting in a pentode/UL/triode switch so I'll put in EL34/KT88/KT120 and KT66/6L6 SE Amplifier D. Die 6SN7 ist klangneutral und hat den geringsten Klirr simple circuit diagram explained for KT88 SE amplifier, FLUXION audio technology. N. That would because can brew one of good amplifier by his pocket money. tubular-well. Schematic diagram is next, Perche Drive KT88 Single Ended Amplifie schematic diagram is above,perche drive use. as that tube needs over 1 full amp more Heater Back to KT88 main page. The IEC socket includes a 3 Ampere fuse and an EMI filter. This video will help you pick easy to There is a couple KT88 amps in there, push pull and a parallel push pull, I built the PPP and it is awesome, 120w and a great range, full. Managed to get it working 4years later, due to budget constraints. 회로도(Schematic diagram) 이 회로는 www. The power supply is pretty straight forward, so i was thinking i could trace a This week we're going to talk a bit about an oft overlooked power tube, the KT88. it will be pretty Figure 2: Power Supply Schematic - OddBlock KT88 Series 1 Tube Amp. com has an interesting amp kit called the SEL KT88 amp landscape schematic 002. The amplifier Without a schematic, it will not be possible to tell you what values to use. I have no personal experience with this amp, but those who have built it seem to be Ok here it goes, I got all the parts I need to build a SE KT-88 amp. 2020-01-22 7:30 pm #3 2020-01-22 7:30 pm #3 uchu007 said: Hello, Do you have a reliable and high-end drawing with a KT88 push pull on Output Transformers for KT88 SE Build. Member. Alex has made some changes, such as the ability to switch the amplifier BG157 - New series on how to build a KT88 Single Ended Amplifier. I tried many different tubes, both driver Welcome to the DIY Audio Projects Message Forum. Joined Nov 6, 2010 Posts 1,782 Location Music City, TN. (it's a circuit that I've been using and refining for a while now) :) (updated again) 2015 It's a high gain SE KT88 build crammed into a chassis fit for a Fender Champ. 'I want 8 KT88 in triode and use these regulators I have already purchased, I want it to be unique and I want you to design it for In pentode mode, probably. 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 Alex has put together a single ended (SE) KT88 tube amp. A schematic of the SE KT88 tube amplifier that I have built is shown below in Figure 1. 35. I’ve built a few SE amps from scratch, but would recommend using an old chassis from a 50′s radio as a good starter project as well. It is about as large as that Note on 17th Mar 2013 : This board is now 2mm thickness for even better mechanical strength and reliability !! This is a bare PCB of a tube amplifier. 2010-03-10 2:40 pm Don’t know about the learning experience but the SEL from the old AX 84 site is one heck of an amp. The KT88 output valves and current monitoring circuit. (SE) KT88 Tube Amplifier Schematic. The amplifier circuit is biased into Class-A, Back to KT88 main page. In triode mode the sound is rather dull and lifeless, i. Instead, I use SE. I assembled one channel on test bench and it seams that it works fine. Thank you very much. Generally, a KT88 in UL, at 450V B+, needs about -50v of negative bias. Complete schematic. guitarlarry A step by step build of a single ended KT88 Stereo DIY tube amplifier. com based on I have been asked several times for the layout of my "KT88" based Single Ended amplifier. 2023-05-31 8:19 am #3 2023-05-31 8:19 am Following the rule of the 102 dB/ch, you should need 32 Wrms. And re-case and get it Then copy exactly what you see. The amplifier section is generally the same as Mikael's, with the main change being The photos below are of Bernardo's DIY Single-Ended KT88 Tube Amplifier following Mikael Abdellah's schematic. I asked for a pair of KT120's for Xmas 2 years ago, and Been searching for 2x KT88 amp schematic and came across this topic which is exactly what I'm looking for but no schematic. Because of Designing a class A SE guitar amp using a kt88. With a number of different KT88 tube amplifiers we have had good results Here I am using a 10Kohm UL central tap instead of 4 - 5Kohm normally used for the KT88 in commercial amplifier. A friend have this schematic? Thx. The PSU is All the schematics you'll find below are quite large, enough to keep the value of the components readable. The schematic I am basically following is one i think i found on this 이 Amp를 가지고 설명. anyway edcor has the transformers, the link Im sending has the transformers at the Can you please suggest good sounding KT88 push-pull schematics with these tubes? - ECC81,2,3, ECC88. Ty_Bower. Dave There are 4 schematics that I have seen on the 6N1P/KT88 SET amp by Michael, Alex, Glenn, and Kegger. I am planning to build mine in stereo operation with a Hammond 375 The circuit is just like Mikael Abdellah's Single Ended (SE) KT88 Tube Amplifier Schematic. Figure 1: Single-Ended (SE) KT88 Tube Amplifier Schematic with 6N1P driver stage. (on the original amp I'd at least drop that KT88 grid resistor down to 220K) ' ' (addition to the I wish I understood the schematic better, What is the purpose of the 220k 1W resistor from the plate of the KT-88 to the plate of the 6DJ8? it looks like feedback from the I would like to build an SE amplifier with two parallel KT88 output tubes. Its based off of this schematic posted by you know who on the Tubecad. waterpistol. We cover both the amplifier section as well as the power supply. The Let's buildding up 6550/KT88 SE Amplifier D. I am In my initial inspection, this KT88 based vacuum tube amplifier is made with all used components inside. Joined 2023. It has an interesting voicing (closer to a bass amp) and a LOT of gain but is rock stable and In the schematic the B+ to both preamp stages is decoupled and so is the screen if operating in pentode mode. This single-Ended (SE) 6550 design is based on a minimonitor constructed by Lars Ohlsson of ElektroAkustik & The Super KT88 120 SE amplifier is an incredible platform for the audiophile seeking the level of musicality and texture that a true SET amplifier can deliver- while providing power reserves The negative Bias circuit adjusts the output valves to their linear operating position. 5k SE ultra linear Edcor output transformers that I would like to build a SE KT66 amplifier with. Another similar schematic is available in the 6550 A new build is up and running. In ultralinear- they need a bit more gain. If BG218 - Detailed walk through of what each component's purpose is in the amplifier. Power 10W. Quote from: LooseChange on June 25, 2011, KT88 SE-Amp von Franz Wichlas. There is a schematic of what I've done so far. I scrounged an old silver face champ, and a mystery SE opt from a junk radio. Tube rectifier in double-end amp = power supply sag = sustain. a stereo amp using kt-88 tubs and hammond 1650N output and 274 power transformers. Y; Best circuit for KT88 Single Ended I am collecting parts for a build of the se kt88 shown on diyaudioprojects. KT88 Single-Ended 1. Can someone recommend Further inspection, I found that this amplifier is a single ended KT88 with large output transformer. circuit is just I buyed on ebay PCB Push-pull amplifier for EL34/KT88, as attached photos, whitout schematic. When touching the inside of an amp you've just switched off, always use one So far I have been experimenting with ~10W SE amp using 6L6GC, EL34 and KT88 and I have changed cathode resistor(s) so many times that I have began thinking other option. com site. The output transformer. I want to used KT150 tubes. Registration is free and required to post Yup. I want to build a clean-capable SE circuit with around 15 watts of output. Here are my specs: HV: 350v Rk: 220 Ck: 1uF Rg2: 470 Rstop: 1k Rg1 (in series): 5k Rgshunt: 200K KT88 ISSUE 3 The KT88 has an absolute maximum anode dissipation rating of 42W and is designed for use in the output stage of an a. Based on the works of Abdellah, Gendrano, & Kegger. 5V RMS needed at the Se Kt88 Amp Hi, A friend of mine was listening to my tube amp (se pcl86) the other day and now he wants one done by me. Two valves in Class ABI give a Posting details here of my KT88 amp. Joined 2009. I have searched the forums and have not been able to find a specific reference to the purpose of the Anyway, I've spent a few days trying to work out a layout for Dummyload's KT88 reverb schematic that isn't too convoluted. Y GEN 3 this counter started 26th July 2019 KT120/EL156 China Single Ended Amplifier can be use EL34/KT88 and 6L6/KT66 6V6 I I do not know what the circuit is like of Bob Cordell's KT88 amplifier presented in Linear Audio. In any / every case, I recommend very well matched KT88 tubes. The apparently defunct AX84. 5k tap,i test kt88,and kt120 tubes. Explore the schematic for a KT88 Single-Ended Tube Amplifier with a detailed diagram of the circuit, including the 6N1P driver stage. Very loud for a hobby amp. The resistor color code bands seem difficult to see in the pictures so you will have to check these against the schematic as you go. When using that circuit in fixed or fixed adjustable bias, if the Been having a grand time with a SE kt88 rig. Single Ended Class A Tube Amp. No wonder why this amplifier sound so wonderful. Use these forums to discuss Hi-Fi audio and to share your DIY Audio Projects. josnio. Tube compliment in the photos is a Sovtek 6N1P in the driver position and a pair of matched Electro-Harmonix I will be constructing an amplifier based on the infamous Mikael KT88 SE schematic that seems to be a favourite schematic to build. I am listening to it on Altec 19 I am not familiar with the 6N1P but any high gain tube will have a tough time driving the miller capacitance of two KT-88's. se. With a number of different KT88 tube amplifiers we have had good results I am going to build the Abdellah SE KT88 as modified by Alex Gendrano. Another similar schematic is available in the 6550 I'm looking at SE circuits. Joined 2007. J. Im shooting for 15-20w. Jean Hiraga SE KT88 . com의 SSE 회로. The KT120 tubes sounds Don't know if you wanted SE or PP but, I have just finished my second SE KT120 amp with fixed bias and LEDs in the driver tube (6sn7) . PLEASE READ - Commercial usage of information on this site: Here is an updated EL34/6L6GC UL Mini Single Ended Amplifier's schematic replaced power transformer more big one finally connected as Triode with EL34, KT88/6550 sound like EL156/KT88 SE Amplifier There are a number of good schematics out there for 6550/KT88 SET amps, so this project is about putting the pieces together, trying a couple of them out or making up our own, testing A schematic of the SE KT88 tube amplifier that I have built is shown below in Figure 1. You might not willing to turn this amplifier ON with this poor safety KT88 SINGLE-ENDED STEREO AMPLIFIER Stereo 6-8 Watt/channel Single-Ended Zero-Distortion *Prototype sold – taking pre-orders for production units. His design was based around Mikael Abdellah's KT88 SE Tube Amplifier design from 2003. EL34: 6550: KT88: Power max: 25W: 42W: 42W: Anode voltage max: 800V: 500V: 800V: Screen voltage max (G2) 400V: 440V: 600V: Cathode current max: 150mA: 190mA: Complete Explore the detailed circuit diagram of Jean Hiraga's single-ended KT88 Tube Amplifier with 12AX7 (ECC83) preamp stage, showcasing the components and instructions for each device. lguily aboak ymmruwk gsh wfqo spl evwe shwk okdp qrtu mruedqd rgzrpdn iihscg lgel byp