In Reply to: RE: Why waste the time? posted by RPMac on December 5, 2014 at 08:08:44:
"Is there scientific proof that it does?"Yes.
Here's the short version;
"Norman Crowhurst wrote a fascinating analysis of feedback multiplying the order of harmonics, which has been reprinted in "Glass Audio," Vol 7-6, pp. 20 through 30. He starts with one tube generating only 2nd harmonic, adds a second tube in series (resulting in 2nd, 3rd, and 4th), and then makes the whole thing push-pull (resulting in 3rd, 5th, 7th, and 9th), and last but not least, adds feedback to the circuit, which creates a series of harmonics out to the 81st. All of this complexity from "ideal" tubes that only create 2nd harmonic!"
A single ended amp using a direct heated power triode with no feedback produces very little upper ordered HD. Upper ordered HD is what the human ear objects to.
Tre'
Have Fun and Enjoy the Music
"Still Working the Problem"
Edits: 12/05/14
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Follow Ups
- RE: Why waste the time? - Tre' 08:09:59 12/05/14 (18)
- RE: Why waste the time? - maxhifi 09:30:33 12/05/14 (17)
- RE: Why waste the time? - bwaslo 13:15:44 12/05/14 (0)
- RE: Why waste the time? - cpotl 11:13:36 12/05/14 (15)
- A Story of Harmonics - Mr_Steady 15:33:27 12/05/14 (14)
- RE: A Story of Harmonics - cpotl 16:28:48 12/05/14 (13)
- RE: A Story of Harmonics - kyle 21:40:05 12/05/14 (10)
- RE: A Story of Harmonics - Mr_Steady 07:01:19 12/06/14 (9)
- RE: A Story of Harmonics - RPMac 08:23:47 12/06/14 (0)
- RE: A Story of Harmonics - Tre' 07:47:26 12/06/14 (7)
- RE: A Story of Harmonics - Mr_Steady 07:54:31 12/06/14 (6)
- RE: A Story of Harmonics - Tre' 09:05:32 12/06/14 (5)
- RE: A Story of Harmonics - Mr_Steady 09:13:08 12/06/14 (4)
- Odd, typo, sorry. - Tre' 09:45:26 12/06/14 (3)
- RE: Odd, typo, sorry. - Mr_Steady 09:56:21 12/06/14 (2)
- RE: Odd, typo, sorry. - Tre' 10:36:44 12/06/14 (1)
- RE: Odd, typo, sorry. - Mr_Steady 10:41:29 12/06/14 (0)
- +1 (nt) - Tre' 17:13:00 12/05/14 (0)
- RE: A Story of Harmonics - Mr_Steady 16:39:21 12/05/14 (0)