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In Reply to: RE: Airtight preamp ripple test. posted by Michael Samra on August 14, 2016 at 17:51:32
To me, that scope waveform seems like noise picked up by probe lead than the ripple. What happens when you zoom in the time domain? The ripple should be clearly visible and there will be some noise riding on the ripple.
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.Thou shall not stand where I type for I carry a bottle of Certified Audiophile Air and a Pure Silver Whip.
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You are very observant because that's exactly what it is..You can't measure any ripple so all we are picking up is a slight noise due to shielding on the probe..You have to go down to the 2mv scale to see anything at all which means there is no measurable ripple.
"For every complex problem there is an answer that is clear, simple, and wrong" H. L. Mencken
Edits: 08/15/16 08/15/16
thanks Mike.
that is very interesting. do you think they can achieve that because they use the tubes reg ?
Regulation, not the pass device type, is (IMO) what's important. There are distinct advantages to using a SS pass device, but, as is so frequently important, implementation details govern the quality of the end result. How, rather than what, is critical.
Eli D.
Edits: 08/15/16
Exactly.
So many tube purists have shamefully downplayed the importance of good solid state devices where they can be very useful in purifying the DC sources without injecting themselves into the audio path.
"For every complex problem there is an answer that is clear, simple, and wrong" H. L. Mencken
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