2sk77b and 2sk180 new projects

[R-K Rønningstad]

If it was not for the full colour I would say the electronics in Soundhappy’s post came right out ofp the original Frankenstein movie.

 

[Soundhappy]

or Stanley Kubrick Sci-Fi metal cube's and pipes structure are the water or air cooling heat dissipation system.
Btw DIY 2SK77B simulation with IXYS is a pure candy amplifier

 

[Soundhappy]

Blog with 2SK180 Diy amplifier music play presentation on video's from Japan

2SK180でアンプ作り 工作を楽しもう ④ | みかんのブログ

 

[Zen Mod]

are you really going to cool SIT(s) with fluid?

 

[Soundhappy]

BON VOYAGE A NICE TRIP TO THE FRENCH WINE COUNTRY on Vimeo
Yes probably! What ideal cooling fluid or French liquid formula is ? just a joke!

 

[WBS]

I'd like to cool my insides with some of that French liquid.

When I win the lotto I plan to spend a month or two in Burgundy going from village to village drinking heavenly juice.

I might even stop by Bordeaux on the way home!

 

[Soundhappy]

1000 Watt's space saucers 2SK182 simple test of resistance 4 wires Kelvin = 0.41 Ohm ( 1 ~ 2 ohm for Sony ) and diode test are OK.
2SK180 source - drain resistance test = 1.33 Ohms and 2SK182ES R test = 0.81 Ohm

 

[WBS]

Are you coming to Burning Amp? Maybe we could raise a glass if you are!

 

[Soundhappy]

I'd like to cool my insides with some of that French liquid.

Yes ! WBS

You are very kind ! Oh and see Digital-Do-Main 50 watt's Papa 2SK77B!!
Travel to SF and participate to Burning Amp is a dream !
Maybe one year with pleasure

Silence with "dry" heat sink solution is music friendly.
Photo show one example of Diyer work from Japan with "flying soucers"
Greetings

 

[Zen Mod]

 

[Soundhappy]

I built El Pipe-O myself (as I recall), and the Kleinhorns were constructed
by my interns that summer Chris and Matt Williams.

Both were donated to an artist's collective in Oakland.
Don't know what became of them since.

Interesting off topic Superb new Kleinhorns pair and ART exposition in Papa Style

Kevin Schmidt: We Are the Robots Exhibit Review - Reviews - Computer Audiophile

Beautyful Kevin Schmidt work build

https://www.diyaudio.com/forums/ful...llery-speaker-installation-2.html#post5559245

Thanks and congratulations

 

[Soundhappy]

Do 2SK77B amplifier was show and play charming music at Burning Amp 2018 ?

 

[Nelson Pass]

I did not see one....

 

[Michael Rothacher]

Next year.

 

[pras1170]

Need insulation mat, as well as screws, THF-51S 2SK182ES bushing inside the ear, I can send it for free, (I can send a small number of accessories) can get free insulation pad, bushing, 4M screw.
Postage problem is the need for friends to pay their own postage

 

[Zen Mod]

to clarify ( a little) - pras is having gray silicone pads , M4 plastic isolator bushings and set of screws for your SITs , and all you need is to pay for shipping

 

[juanitox]

i'm begining to build a THF51S l'AMP with IXTH6N50D2 michael CSS
power supply will be 2X 45V 500VA , 39OOOuf 1R 39000uf , my goal is nearly 25V B+ at 2amp ( with autobias on the VFET)
is the 1R CCS source resistor needs to be variable ? or is it self adapting ?

 

[juanitox]

it is alive , my THF51S l'amp CCS with IXTH6N50D2
the B+ is 60V the THF51S is running at 30V VDS and 2.1 AMP with auto bias and a 6800uf capacitor output return to source ( western electric schema)
i have made a CLC power filter but finally get more noise than with CRC ( surely the chokes are to close of something) but nothing dramatic.

i have 1R CCS source resistor on one side and 0.8R on the other to get the same bias and vds on the VFET ( my mosfet are not matched i suppose)

sound is very good somehow very different than my alpeh min or Sony pushpull VFet. don't know if i will buy some hig power resistor to try or Chokes for the moment. it seems more powerfull than my previous build with 2SK82 but it can be a illusion of the fresh build , i will see for the next days

 

[nicoch58]

let we now....

 

[GnuB]

Sweet!
Congratulations!!!
Let us know how it compares.