High-End Tube preamp with ECC88 - Page 31 - diyAudio
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Old 22nd December 2012, 12:05 PM   #301
Gost22 is offline Gost22  Bolivia
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Quote:
Originally Posted by SY View Post
Instead of posting, I'd suggest you get out a soldering iron, build a circuit, and start experimenting. Then tell us what you built and what you found out.
For me, this preamp for this schematic provides a good sound!
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Old 22nd December 2012, 12:06 PM   #302
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If you need 1Vrms output, I would suggest this tiny modification to your schematic to give you even less distortion. Yes, you can also use DC on the heater but the improvement will be marginal. It will also be much less sensitive to the choice of tube (type and manufacturer).

Cheers,
Martin
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Old 22nd December 2012, 01:23 PM   #303
12E1 is offline 12E1  United Kingdom
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Quote:
Originally Posted by Gost22 View Post
If you have any suggestions about some changes to the schematic go ahead!
We already told you so many times the different things that are wrong with this schematic. If you are happy with the sound from this circuit, that is good for you. But fundamentally there are faults with the design that you have been pointed out to you and which you choose to ignore. That's your decision, but do not post it claiming that it is good. It isn't.
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Old 22nd December 2012, 06:52 PM   #304
Gost22 is offline Gost22  Bolivia
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Quote:
Originally Posted by 12E1 View Post
We already told you so many times the different things that are wrong with this schematic. If you are happy with the sound from this circuit, that is good for you. But fundamentally there are faults with the design that you have been pointed out to you and which you choose to ignore. That's your decision, but do not post it claiming that it is good. It isn't.
So tell me what is wrong with this preamp, and if you are able to give a better schematic for tube preamplifier or line-stage.
thank you!
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Old 22nd December 2012, 07:09 PM   #305
Gost22 is offline Gost22  Bolivia
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Quote:
Originally Posted by bayermar View Post
If you need 1Vrms output, I would suggest this tiny modification to your schematic to give you even less distortion. Yes, you can also use DC on the heater but the improvement will be marginal. It will also be much less sensitive to the choice of tube (type and manufacturer).

Cheers,
Martin
Hi,
To be more precise in the way this tube pre-amp with ECC88 measurements were made with a device CLIO with the input signal of 1V amplitude sine wave of 1027Hz at the 2 harmonic is 0.38%, and 3 harmonic is only 0.032!!
Cheers!

Last edited by Gost22; 22nd December 2012 at 07:18 PM.
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Old 22nd December 2012, 07:32 PM   #306
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Originally Posted by Gost22 View Post
For me, this preamp for this schematic provides a good sound!
You say this preamp is high end. Please define high end.

Cheers

Ian
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Old 22nd December 2012, 07:40 PM   #307
Gost22 is offline Gost22  Bolivia
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Default Oh no,...

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Originally Posted by ruffrecords View Post
You say this preamp is high end. Please define high end.

Cheers

Ian
Oh no?!
I'm in my way I said it is high-end!??
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Old 22nd December 2012, 08:39 PM   #308
tinitus is offline tinitus  Europe
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Quote:
Originally Posted by ruffrecords View Post
Please define high end.
simple....it means high prices....expencive, thats all it says

means its only highend DIY if its very expencive
sound has nothing to do with it at all

piece of cake
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Old 31st December 2012, 01:19 PM   #309
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Originally Posted by Gost22 View Post
Oh no?!
I'm in my way I said it is high-end!??
Of course you did. Have you looked at the title of this thread?

Cheers

Ian
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Old 6th January 2014, 04:58 AM   #310
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This is best and ultimate hi-end preamp
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