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Old 25th February 2011, 07:14 AM   #1
radio is offline radio  Macedonia
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Default High-End preamplifier with ECC82!

Hello!
The measurements refer to the preamplifier is given below in Scheme (Figure 1)!
Please someone let that little comment about this preamplifier, if it does as a power preamplifieramplifier.
Feedback to be about the sound and display measurements if it worked.
If someone izradijo this pretpoačalo and made some measurements and some show here (frequency response and attitude towards the second and third harmonic!!?)
Many thanks in advance!
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Old 25th February 2011, 07:49 AM   #2
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This is absolutely not "High-End"!
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Old 25th February 2011, 08:14 AM   #3
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Why not ? For best implementation of that circuit , octal tubes such as 6SN7
could be used . Lower and upper tubes would need separate filament supply ,possibly DC regulated ,and the upper one needs also a reference to B+.
Major importance should be given to the power supply section ...which 'sounds' and can be detected as the 'line preamp' circuit .
http://www.webalice.it/jlc891/schemiprechf43.htm
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Old 25th February 2011, 12:05 PM   #4
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Nah, Personally--I dont like it!

Be better to do a Proper Mu stage, maybe with mosfet on top or a Pentode....

Dont like the ECC82 either, Nasty little things IMO....
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Old 4th April 2011, 11:10 AM   #5
radio is offline radio  Macedonia
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Thumbs up High End preamplifier with ECC82-Circuit!!

Hello All !
I'd recommend a scheme (circuit) for the "High-End Preamplifier with ECC82" or ECC83
Thanks
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Old 4th April 2011, 01:18 PM   #6
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It's kind of easier to recommend circuits without ECC82 or ECC83
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Old 4th April 2011, 01:40 PM   #7
GoranB is offline GoranB  Poland
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Quote:
Originally Posted by radio View Post
Hello All !
I'd recommend a scheme (circuit) for the "High-End Preamplifier with ECC82" or ECC83
Thanks
Here is one, maybe not High-End but with ECC 82 as you wanted.

Pozdrav zemo
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Old 4th April 2011, 03:22 PM   #8
Helmuth is offline Helmuth  Netherlands
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Why bother a tube preamp your source is also solid state.

Only use of tube pre-stage is for a turntable IMO, then from source there is no solid-state involved.

And in when stage the tube preamp design becomes high-end?
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Old 4th April 2011, 03:37 PM   #9
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Originally Posted by Helmuth View Post
And in when stage the tube preamp design becomes high-end?
When the price gets high.
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Old 4th April 2011, 03:40 PM   #10
Cassiel is offline Cassiel  Libya
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Quote:
Why bother a tube preamp your source is also solid state
Why bother with tube amps at all if the source is not a a turntable?
ECC82's can sound good in a mu follower topology, I can post a schematic if you're interested.
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