And a CCDA is where they go!
My schematic is not good for your purpose, too little distortion...
We discussed the difference between 6N23П and ECC88 with DF96, it is very esay to adapt a circuit for one or the other.
My schematic is not good for your purpose, too little distortion...
We discussed the difference between 6N23П and ECC88 with DF96, it is very esay to adapt a circuit for one or the other.
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Number 22 does not seem to learn, does he? Once again he demands that we supply a circuit for some valve he has picked.
I have not seen anybody to specify what a Hi-End pre-amplifier is.
I see that such amplifier should have the following characteristics:
- flat and wide frequency response
- high output level
- low distortion
- low output impedance
- low gain, when used as a line stage or with input levels above, say 0.3 Vrms
- non-inverting
Below is one with 6n23p (=ECC88, etc.) that fulfils the above requirements.
I see that such amplifier should have the following characteristics:
- flat and wide frequency response
- high output level
- low distortion
- low output impedance
- low gain, when used as a line stage or with input levels above, say 0.3 Vrms
- non-inverting
Below is one with 6n23p (=ECC88, etc.) that fulfils the above requirements.
An externally hosted image should be here but it was not working when we last tested it.
Below is one with 6n23p
You have quite a lot of capacitors in there... 7 in the signal path (including the 2 psu caps). No likey.
Then again, with all that feedback it shouldn't matter.
And a CCDA is where they go!
My schematic is not good for your purpose, too little distortion...
We discussed the difference between 6N23П and ECC88 with DF96, it is very esay to adapt a circuit for one or the other.
That distortion is not greater than> 0.5%!
Cheers
Hi artesalo!
High-End no feedback gain!!!!
No R1/R15???
Cheers!
Without R15 the amplifier does not work at all.
Without R1 it does not fulfil the requirements I listed.
Without R15 the amplifier does not work at all.
Without R1 it does not fulfil the requirements I listed.
You are right, for it is this preamplifier no is High-End!?
The designs you throw up there keep getting worse and worse.
No, no, this must be *really* hi-end. It says so right on the schematic.
@Gost22: This, very goodly! Ultimate High End! Sound like true bestest vintage tube! Pure seed!
You go build, come back next year, tell us how sound is!

No, no, this must be *really* hi-end. It says so right on the schematic.
@Gost22: This, very goodly! Ultimate High End! Sound like true bestest vintage tube! Pure seed!
You go build, come back next year, tell us how sound is!
![]()
Hello Paris (Vincent77)!
I made this tube/valve preamplifier with 12AX7 and to tell you great playing. Giving it the right sound full of warmth, very good, not to say an excellent stereo image, midlle and high i very defined with a lot of heat.
enjoy😉
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Hi artesalo!
Who says no R1 to requirements. Who wants THD <0.001 for let pre-amplifier with transistors or MOSFETs that's my recommendation ...
tube/valve pre-amp should produce tube-like sound!!!!
This is the law of tube preamlifier or line-stage!😱🙂
Cheers!
Who says no R1 to requirements. Who wants THD <0.001 for let pre-amplifier with transistors or MOSFETs that's my recommendation ...
tube/valve pre-amp should produce tube-like sound!!!!
This is the law of tube preamlifier or line-stage!😱🙂
Cheers!

Tube preamp should give tube sound? Law of tube preamp to make sound/distortion like a violin found in bottom of a lake somewhere high up in the Alps? That law is exactly what gives tubed electronics a bad rap. I prefer my tube preamps and amplifiers to make no sound except what's fed into it. I'm not going to post Hi-end circuit for you...you wouldn't appreciate it anyway without all that tube sound.
And yes I'm enjoying this thread immensely...
And yes I'm enjoying this thread immensely...

I will now contact the moderation and suggest to put the word 'high end' on the auto censure list with forbidden words 😀
Hi guys!
Here is schematic the true seed High-End preamplifier.
See all the measurements will be clear!
I think it's time you stopped posting designs that are not yours to post, especially since you do not give credit to the original designer or publisher. It is very obvious to me where that one came from.
I will now contact the moderation and suggest to put the word 'high end' on the auto censure list with forbidden words 😀
Hmmm this means that you have to email ...yourself?
I have only one question: Is maintaining phase a requirement for a preamp?
I will now contact the moderation and suggest to put the word 'high end' on the auto censure list with forbidden words 😀
while we are at it, i think we should add the word "best" to the autocensor too....
Hi artesalo!
Who says no R1 to requirements. Who wants THD <0.001 for let pre-amplifier with transistors or MOSFETs that's my recommendation ...
tube/valve pre-amp should produce tube-like sound!!!!
This is the law of tube preamlifier or line-stage!😱🙂
Cheers!![]()
Do you mean an effect box that makes the sound dirty, but the dirt is High End? 😀
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