B1 with Korg Triode

[Nelson Pass]

Another thread in this forum has made comment on the photo of my Korg
Triode circuit board, so I am offering this micro article on the subject.

 

[vdi_nenna]

Cool!

 

[Nelson Pass]

Since that post I received a nice note from Mr. Tohyama of Korg,
and he sent me a picture of the preamp on display at RMAF.

 

[biju55]

Another thread in this forum has made comment on the photo of my Korg
Triode circuit board, so I am offering this micro article on the subject.

Thank you .....

 

[WalterW]

Very cool hybride preamp!

 

[JPS64]

Thank you!

 

[Soundhappy]

Papa gives birth to new Diy buffers. Surrealistic dream and miracle happen.Wake up that incredible interesting work.
Most kind because that B1Triode open lots of possible enjoyment with BA ,F5, F6 , Aleph J,M2 and Vfets etc.
Thanks Mr Pass for all good stimulating energy.
All articles are pure JOY

 

[JPS64]

it´s Christmas!?

EAGLE and Sketchup symbols.

JP

 

[2 picoDumbs]

Another thread in this forum has made comment on the photo of my Korg
Triode circuit board, so I am offering this micro article on the subject.

Nice one Nelson.
Reminds me of my Trace Elliott bass amp, with triode preamp stage.

 

[2 picoDumbs]

This will go very nicely with my Mongrel F4 Beast

 

[kpsthakur]

Cool, where to buy 6P1’s....any price range...guess for Stereo, would need 2 of them...btw, it has a very funny powersupply...haven’t seen anything like this...will be interesting to study

 

[invaderzim]

They seem to go for around $50. Each tube handles 2 channels

 

[Soundhappy]

Maybe we can buy DIY pcb's version with Korg Nutube in DiyAudio Store in near future ?
Easy to find on the web. Only one piece for stereo because is double triode in one package.

http://www.nutube.us/downloads/Nutube_Datasheet_31.pdf

Korg NuTube is now available online

🙂

 

[kpsthakur]

Thanks..any links?

 

[kpsthakur]

Aah I was trigger happy, looks like this one is on eBay

 

[2 picoDumbs]

Cool, where to buy 6P1’s....any price range...guess for Stereo, would need 2 of them...btw, it has a very funny powersupply...haven’t seen anything like this...will be interesting to study

Nothing funny about supply. Passive RC filtering

 

[2 picoDumbs]

Maybe we can buy DIY pcb's version with Korg Nutube in DiyAudio Store in near future ?
Easy to find on the web. Only one piece for stereo because is double triode in one package.

http://www.nutube.us/downloads/Nutube_Datasheet_31.pdf

Korg NuTube is now available online

🙂

Still might be better to buy two. Possible better channel separation that way.

 

[Soundhappy]

Possible better channel separation that way.

Is nice matched triodes pair 😀 Two for balanced version.
What about 2SK370 jfet's could 2SK170 can be other alternative ?

I find this 2SK370 seller in Spain but don't know if is genuine or not.
http://www.retroamplis.com/2SK370GR/en

 

[kpsthakur]

That was going to be my next question

 

[2 picoDumbs]

Is nice matched triodes pair 😀 Two for balanced version.
What about 2SK370 jfet's could 2SK170 can be other alternative ?

2sk170 certainly ok
Balanced version certainly ok.