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Old 2nd July 2012, 08:04 PM   #11
tinitus is offline tinitus  Europe
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Quote:
Originally Posted by DF96 View Post
It is unclear exactly in what sense the term 'high end' is used.
What is 'the' audiophile sound? Or 'real tube sound'?
or 'ordinary' ? whats the difference anyway, eithr it works, or it doesnt
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Old 2nd July 2012, 08:07 PM   #12
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Fortunately, Einstein knew what he was talking about.
Not always
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Old 2nd July 2012, 08:16 PM   #13
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Guys that solution can be offered as the better?
Thanks
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Old 2nd July 2012, 08:58 PM   #14
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Look at the "#26 pre amp" thread. This currently has 1901 posts on it. Is this maybe telling you that a very large number of people wanting a high end preamp use the 26 tube?

andy
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Old 2nd July 2012, 09:17 PM   #15
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I just hate to read statements like 'real tube sound' which tells me that the designer f*ck*d it all up. If you like that kind of sound be my guest.

I recommend you to read the preamp cookbook written by Allen Wright (RIP) where he wrote how to get most out of the E88CC in his preamp designs.
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Old 2nd July 2012, 10:29 PM   #16
7N7 is offline 7N7  United Kingdom
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[QUOTE=Nelson Bass;3079506]I just hate to read statements like 'real tube sound' which tells me that the designer f*ck*d it all up. If you like that kind of sound be my guest.
[...]/QUOTE]

Me too; what's a "real tube sound"? A load of 2nd harmonic distortion?

To me, for a simple concept I have to say that the power-supply is mind-numbingly complicated.

I am completing (i.e. modifying) what I claim to be a very low-distortion pre-amplifier. I don't think it has a "sound" The output is very clean and crystal clear; I am hoping to make it a little better before I write it up for this forum.

Paul
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Old 2nd July 2012, 10:41 PM   #17
12E1 is offline 12E1  United Kingdom
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Originally Posted by 7N7 View Post
To me, for a simple concept I have to say that the power-supply is mind-numbingly complicated.
Not only needlessly complex, but it also has errors. The stated output voltage is 220 volts. The reference voltage (zener chain) is 204 volts. But the range of control on the feedback pot is from about 42% to 58% of the output., thus it could only regulate the output to a much higher voltage than stated.
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Old 2nd July 2012, 10:49 PM   #18
Mr. dB is offline Mr. dB  United States
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So if there aren't any active loads, diff amps, cascodes, mu-followers or totem-pole followers in the circuit, no one is interested in tubes anymore?
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Old 2nd July 2012, 10:54 PM   #19
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So if there aren't any active loads, diff amps, cascodes, mu-followers or totem-pole followers in the circuit, no one is interested in tubes anymore?
Everything today is thoroughly post modern. Hey, sounds like a song.

Hope all's good witchoo,
Chris
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Old 2nd July 2012, 10:54 PM   #20
Mr. dB is offline Mr. dB  United States
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My question, though, is why bypass the cathode then throw away the gain with a divider, why not instead leave the cathode unbypassed and then connect the next stage directly to the first stage's plate?

Anyway, I hope formula 22 won't be discouraged by the initial reception this thread has received, and will continue with this project.

Last edited by Mr. dB; 2nd July 2012 at 10:57 PM.
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