6H30P preamp schematics

[Mrpong]

็Hi

I'm looking for some 6H30 preamp schematics by doing search on Google.

Here is what I found:-

http://digilander.libero.it/paeng/a_6h30s_line_preamp.htm
http://digilander.libero.it/paeng/high_sigma_vacuum_tubes_part3.htm

Has anyone tried it? How good is it? Are there other interesting 6H30-based preamp schematics?

Thanks!

 

[Pano]

Check also the 6H6 Thread which is a very similar tube. There are a few schematics in that thread.

It would be 6N6P in the latin alphabet.

 

[56oval]

try google search for black art audio

I,m using 6H30pi into 600ohm output trannys I find it balanced and forget its between source & amps .

An externally hosted image should be here but it was not working when we last tested it.

output stage.

An externally hosted image should be here but it was not working when we last tested it.

power supply.

 

[Wavebourn]

Gentlemen;
it is called 6N30Pi

 

[Stixx]

I think both ways of writing (kyrillic and latin) are applicable worldwide nowadays...no correction needed.


EDIT: @mrpong: you may want to include the aikido schematic which CAN be built as lineamplifier with 6H30...lots of threads in here.

 

[Wavebourn]

I think both ways of writing (kyrillic and latin) are applicable worldwide nowadays...no correction needed.

No, it is misleading. You can't write Cyrillic Pi using Latin letters, probably 6H30II will look similar, but not exactly.
Cyrillic letter looking like H means X, i.e. double diode. 6N30P is a double triode.

And yes, you may find lot of schematics in the Net, but 6N30P is a tube for computer usage, so it's linearity and repetitiveness of parameters is not good for audio applications if to compare to other tubes, though it is popular and overpriced. The same can be said about 6S33S (looks like 6C33C) that was developed for power supplies, without a linearity in mind.

Sorry for a bitter truth, but this information I believe can save money and time...

 

[Pano]

I,m using 6H30pi into 600ohm output trannys

Very nice! The 600 ohm trannys are what on the other side? What's the ratio? Are you doing a push-pull?

 

[56oval]

behind the valve,s are
Line OutPut Transformers made by BlackArt in Australia
Model 6K600:20.6

the output trans are made for the 6H30pi .

Its BlackArts circuit so I would have to get premisssion to post it.

 

[Mrpong]

I think both ways of writing (kyrillic and latin) are applicable worldwide nowadays...no correction needed.


EDIT: @mrpong: you may want to include the aikido schematic which CAN be built as lineamplifier with 6H30...lots of threads in here.

AIKIDO with 6H30P - I found one here. Do you refer to this schematic?
http://www.tubecad.com/2004/blog0011.htm

 

[jarthel]

GHi

Are there other interesting 6H30-based preamp schematics?

Thanks!

you could build an aikido. I think John Broskie has a table of values to uses when using different types of tubes somewhere in his site.

behind the valve,s are
Line OutPut Transformers made by BlackArt in Australia
Model 6K600:20.6

the output trans are made for the 6H30pi .

Its BlackArts circuit so I would have to get premisssion to post it.

Is Black Arts still active? I emailed the person and no reply. The phone won't answer either. And the website looks like it hasn't been updated for years.

 

[Stixx]

Mrpong,
yes, although the blog you found is an older one.
Broskie has updated the schematic into Rev.B
http://www.tubecad.com/2007/01/blog0096.htm which, as Jarthel previously noted, supports a lot of different tubes. There is a PDF about that floating around the net but I can't seem to find it...(and it is too big to attach it) 🙁

rgds,
Oliver

 

[andRookie]

Do you mean the pdf that is on the tubecad-pages?akido

 

[Stixx]

Basically yes...but this is not RevB.
It's also the older boards, stereo not mono.
But everything else seems to be the same...

 

[Taco]

Maybe you can look at the project from TriodeDick

And a lot more information and a manual for building this amp:
http://www.triodedick.com/cleo_6_deel_1.htm

 

[soundbadger]

No, it is misleading. You can't write Cyrillic Pi using Latin letters, probably 6H30II will look similar, but not exactly.
Cyrillic letter looking like H means X, i.e. double diode. 6N30P is a double triode.

just if anyone cares alt-227 will give you Pi on most systems π π π
then you write the Russian tube names properly

6H30π

 

[soundbadger]

And yes, you may find lot of schematics in the Net, but 6N30P is a tube for computer usage, so it's linearity and repetitiveness of parameters is not good for audio applications if to compare to other tubes, though it is popular and overpriced. The same can be said about 6S33S (looks like 6C33C) that was developed for power supplies, without a linearity in mind.

Sorry for a bitter truth, but this information I believe can save money and time...

Ahh yes one more thing,,, computer use or not it seems that the 6H30π can be pretty linear depending on where it is biased, as an input stage biased at about 2v it looks pretty good from the curves and i have read good thing about its use in this situation.

it is very overpriced though, i do hate it when tubes get over-hyped and consequently start selling for stupid money.

 

[revintage]

The Sovteks I use are marked 6H30, but maybe NOS are marked the other way.

If you want to check linearity, which in reality is very impressing, you can find measured curves at:

http://klausmobile.narod.ru/testerfiles/6n30p.htm

I use it in a miniconcept together with parafeed Lundahls:

http://www.diyaudio.com/forums/showthread.php?s=&threadid=131511

This is what it ended up with:

 

[Karsten Sømand]

Hejsan Lars,

Very nice little amp you have created. A little retro-look mixed with a very modern iPod! Cool.

BTW, is there any risk that the iPod will get a little hot - it looks like it is placed very close to the tube.

Kind regards

Karsten

 

[revintage]

Hej Karsten!

Before I drilled any holes I let the Nano be in its place overnight to check heat. It did not even go over 25 degrees C in a +20 degrees C room.

So verything is 😎!

If you want to see more check:

http://www.hififorum.nu/forum/topic.asp?TOPIC_ID=71002