Full DIY Tube Amplifier: KT90 6SN7 EF86

[sdiesel77]

Hi Guys,
My new DIY Integrated Tube Amplifier is finally at home! [emoji7]
Following five long months of design & assembling it is now singing at home!

Specs:
Tubes : KT90, 6SN7, EF86
Output transformers: Hashimoto HW-60-5
Coupling caps: Audyn True Copper Max
Resistors: Takman Audio
Motorised potentiometer ALPS Blue Beauty
Estimated power: 2 x 60 watts RMS
Weight: 26kg
Dimensions cm : L39 x l49 x H 22

https://youtu.be/bDIGruVSxrM
https://youtu.be/bDIGruVSxrM[/youtube]





[IMG]https://uploads.tapatalk-cdn.com/201908 ... 164368.jpg[/IMG]

[HiFiFan]

Looks great. You need a night time shot to show off the tubes.

How are you liking the sound?

[sdiesel77]

Really really like the sound of it.
It has a wide soundstage, detailed and warm tube sound with precise and punchy bass :)
It's really powerful, I can only bring the volume pot to maximum 1/4 then it's too loud.

Tubes.jpg (52.31 KiB) Viewed 2380 times

[cybot]

A thing of beauty in the light and in the dark. Well done and long may you enjoy 😊

[Fran]

Ah thats a beauty!

Well you may wear!

[Fran]

whats that selector switch you used at the back?

[nige2000]

Really nice job on that. Congratulations

[sdiesel77]

whats that selector switch you used at the back?

Ahahah well spotted Fran!
It's to switch on or off the front screen (showing the bias for each KT90)
I wasn't sure I wanted to have it on non stop but actually I prefer it on [emoji16]