I agree,I have built this same preamp,sounds nice with the 12AU7,but I thought I would do some tube rolling,and played with the power supply a little bit,decided to try a 6SN7 using same capacitor and resistor values,with tube power supply,using DC on the heaters,and what can I say, beautiful music. Especially using speakers with Planar drivers. Simply marvelous!
So, In your opinion, the 6SN7 sounds better than the 12AU7....?
This has been my experience too...
So, In your opinion, the 6SN7 sounds better than the 12AU7....?
This has been my experience too...
I felt that in this particular topology, the 6SN7 does a better job,I haven't listened to other setups so I couldn't make a definitive statement,but Yes it does have a better sound in this arrangement.
Hmmmm.......
Confused. Thread Title says, HE amp with ECC82....
Now you're burbling on about ECC83, an Entirely Different Valve!
Another Even Nastier little 9 pinner IMHO!
Hello!
In this post i was looking for Preamamplifier with ECC82 scheme (circuit) since no one offered jas we offered this to the High End preamplifier with Tube ECC83!
Cheers
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I have just finished my ECC82 preamp. Have been testing it, changing tubes, listening. I am very satisfied with the sound.I used "cheap" plastic capacitors on the output, so during this weekend I am going to change them with some more exotic one. The pre is more like a prototype, and I will use it as an "testbench", while I will build me a new one?
DIY ECC802S (12AU7 / ECC82) Vacuum Tube SRPP Preamplifier
Stenak, nice that you've made this preamplifier with ECC82 (12UX7)!
I am interested in this preamplifier the attitude of odd and even harmonics ?!
If you do some measurements please ask them here!
thanks
Hello ALL!
Here's the picture here shows the High-End preamplifier with ECC83, which I did.
Measurements are given below. Second harmonic is -47dB (0.76%), and the third is only -62dB ( 0.15%).
Here is the data and characteristics frekvensiska preamp, ... is it true High-End preamplifier with ECC83.
P.S.
I was looking for a project to exchange.... but that's it, we go ... poor English ...:
Cheers
Best Regard
Pozdrav zemjak!!
Friends here are the schematics (cicuit) of High End preamplifier with 12AX7 (ECC83).
Cheers
P.S.
Believe me, this preamplifier gives one truly (excellent) Valve/Tube sound !!!
Attachments
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Something like that!
With this filter Frequency response characteristics is obtained as shown in Figure A (6dB at 30kHz! with filter R12, C3).
Cheers
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Something like that!
With this filter Frequency response characteristics is obtained as shown in Figure A (6dB at 30kHz! with filter R12, C3).
Cheers
You can achieve the same thing using an equaliser. I think that an high-end preamp wouldnt need such a filter.
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As a high-frequency attenuation in cables and the knobs for volume (for output). If you want to get the flat frequency response remuve the capacitor C3 and almost !?
Cheers
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ECC82
The only thing I have for testing the pre are my ears!
I change capacitors, valve, and so on....
As a high-frequency attenuation in cables and the knobs for volume (for output). If you want to get the flat frequency response remuve the capacitor C3 and almost !?
Cheers
The only thing I have for testing the pre are my ears!
I change capacitors, valve, and so on....
ECC 82 pre
I can write down some comments after my holiday...with rain, rain...and 15 degrees celsius...
OK, and offer a schematics that you tested with ECC82!?
Cheers
I can write down some comments after my holiday...with rain, rain...and 15 degrees celsius...
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