KT88/EL34... Single Ended Tube Amplifier Build 

Fantastic! It’s absolutely an art piece with workmanship and compact streamlined. You are a genius. 👍👍👍

Not too many builders care to arrange the transformers to minimize interference, as you did. A neat way to implement the delay is to use two SCRs in the rectifier bridge. This way, you not only can switch them on and off, but you could also control how fast the filter capacitors charge, in fact controlling how fast the +B voltage rises.

That woodwork tells of true craftsman skills.

Love your standards of finish and presentation. Very commendable.

Beautiful. A boatload of information, efficiently laid out, with excellent photos. Bravo!

Outstanding. Built the Blueglow version. Now I'm jealous. Excellent craftsmanship.

Well planned , beautifully executed . Well done sir !

Absolutely gorgeous and inspiring. Highly aesthetic!

We did that in 1965, part are easy to get, all tubes, transformers pots, caps, etc. We build Preamps, equalizers etc.

Bello, realizzato con cura e tanta passione veramente una accurata realizzazione artigianale. Complimenti

Science meets Art! Very nice! Tastefully executed!

Ovo je nevjerojatno! Baš rek'o da pogledam video kako je čovjek složio lampaša, kad ono iza piše: napravio Robert Zovko. Ja sam isto Robert Zovko. Baš mi je drago da ima još jedan RZ koji nije debil, nego fino koristi slobodno vrijeme za svoj gušt. Svaka čast Roberte Zovko i veliki pozdrav!

Thank You , great music for a great amp

Beautiful. I was going to say it reminded me very much of the amp built on Blueglow's channel. And I see you saw that as well. Thanks for sharing the data on the google drive as well.

Nice job. Very nice job. I'll copy your wooden sleeve and top & Bottom plates idea. I have some nice mahogany planks and a piece of Indian Rosewood that would make a nice fascia. A polished brass top plate would be nice but maybe quite expensive. I'm liking your amp a lot, especially the recessed valve holder surrounds.

That is amazing. Thank for sharing, that is inspiring.

Beautiful Amp. Thank you for sharing this.

just imagine that in the listening room a bottle of good Brandy on a rainy day looking at the window wow!

Beautyful wiring & sound !

Very nice and elegant looking. You did a great job. Thanks for sharing.

Beautiful. Very impressive work - thanks!

You're just very detail-oriented! Perfect!

Beautiful Amp. Thank you for sharing !! God bless you ::

Good Evening Robert, I am very inpressed by the sound quality and craftsmanship. You did an awesome job in building the amplifier. I have only built a Dynaco VTA ST-120 kit. I would love to beable to build the KT88/EL34... Single Ended Tube Amplifier that you have done a excellent job building. If you don't mind would you happen to have a parts list that I could get from you? I would love to try and build the same amplifier as the one you have it's fantastic sounding. Thanks for the time and help.

beautiful tube amp well done

Looks absolutely perfect. Greetings from sunny Jamaica.

Work of Art !

Really really nice enclosure.. Very nice job.

I am jealous. I want one. Well done! Congrats!

Beautiful job Robert!

Prekrasna samogradnja. I ja imam KT88 / EL34 lampasa 😀

This is what I'm looking for, thanks a lot for sharing this with other people. You are the man!

I saw you added a ferrite core at the power inlet, were you experiencing any hum or noise? Very nice looking work!

how much did it cost to build the amp completely sir? i'm amazed by how well you built it, such fine craftsmanship you showcased for us :)

Thats a sweet lil amp !

Wow. totally beautiful!!!

Bravo, Roberte, svaka cast.

Very nice work. I learnt a few things too!

FANTAZIJA-HVALA!

Super projekat. Inspirira me da i ja to isto napravim. Da se malo odmorim od digitalnih signala :D

Simple,Great and Elegant ! Perhaps your spirit is the same!

Very good nice thank you for sharing

Thanks for your good video and I fount an adapter (SAT UB-1) that can connect headphones by connecting to the amplifier speaker terminal on etsy. .

Very pretty but with all that effort a shielded chassis would be appropriate

Зашибись , Браво!!!

это класика от этого не уйти всегда останется актуально

Beautiful !!!

Just awesome!

Представляю сколько времени ушло сделать всю эту красоту! У меня сделан однотактник, я знаю.

Nicely done! Congratulations!

WOW... That's a really nice build.... 11/10 :-)

Beautiful

I too enjoy building amplifiers and think your work is very good, looks better than most beginner amps. Glad you're part of the forum too. I'm hoping to get a laser engraver soon to step up my projects, would you recommend yours?

I have been looking for a KT88/EL34 single ended amp . Any advice on pre assembled amps that I can investigate. Everybody's heard of Decware but I've not been able to find out if you can run KT88 and EL34's in any of their single ended models. If I could find one as nice as yours that'd be ideal but all I really want is a partner to my Prima Luna balanced amp so I can try 'Tube Rolfing' comparisons' between them. 🤤 "Cool Amp Dood"

Awesome! what a great build it is

Great build, nice job!

Beatifull build bet it sounds great. I'm a tube amp builder myself on 6550we pp ul

KT-88 is an elegant sound

Ok felicitari

That would be awesome buying as a kit and building it, shame I don’t own a CNC tho cos I would give it a try

Wonder if that 1M on the input makes sense, the input pot allready sets the input impedance, and the pot will be unlinearized with the added resistor. Maybe unless the pot is a linear one that is.

Beautiful work

Que bella construcción de aparato de sonido

Great job ! I wish I can do this too

Good job!

Very nice!

디자인스마트 깔끔한배선 갖고싶은 이쁜자태 좋읍니다

Great! Thanks for sharing

Amplificadores valvulados tem o som melhor que os transistorizados. Abraço

Congratulations.

Perfect ! Just an artistic thing! Even if Japanese engineer can't make politely. I think so. By the way, how the sounds of it is ? Please post using movie, as you would like.

This thing must be a commercial kit ... the parts are way to exotic to be available to the public ... how many watts does it give in triode mode and U/L mode ? And at what percentage turns on the output transformer primary is the U/L tapping made ?

Supers sweet 😱

Art

Nice work!

Beautiful Work !

Odličan 5 Sidi 5

Excelente!!!

Well done

👏👏👏👏👏👏👏

Good job

Any advantage using C core transformer as opposed to EI? Or is it snake oil. I know you believe in Toroids. Thanks!

Man there for a second i thought it was going through the pictures to fast... but then i realized it was just going way to fast

Good job.

Hello, could you share where did you get those antishock plates for tubes? Can't seem to find them anywhere. Thank you

Good 😎

Very Nice ❗👍

Hello. What's the purpose of that second capacitor (0.33uf) across cathode of the KT88. You already have a 220uf. Thanks

KT88/EL34... Single Ended Tube Amplifier Build I am interested in buying this product how do I do it?

Such a nice work Congrats. BTW what timer did you use?

Muito Bomm

And you forgot to show the schematic of how to hook this into the flux capacitor

Hello, I hope you'll see the question. What model rotary switch did you use? Thank you

looks good. Can this handle 4ohm speakers ?

Super krasna pojačalo, vjerovatno i rade dobro.Razmisljao sam da naruci iz kine pojačalo ali onda sam pronašao vas klip na YT. Interesuje me dali je moguce kupit jedno takvo pojačalao i koliko bi kostalo odprilike, jedno od ta dva na vasem klipu ili da vi napravit?! Za zvucnike B&W 685 S2. Unaprjed hvala Damir

Great job !

Hi Robert, it is possible to find out more about the on / off switch? Which switch and which schematic (relais?) do you use? Where can you get these parts?

hello again Sir. One other question. whats the quiescent current on those KT88's (Iq)? thanks!

Very good!

Beautiful build. Bet it sounds great. Fuse in neutral not a good idea though.