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SET Asylum Single Ended Triodes (SETs), the ultimate tube lovers dream. |
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SET Asylum Single Ended Triodes (SETs), the ultimate tube lovers dream. |
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In Reply to: How does "negative" feedback work in an electronic circuit posted by FenderLover on July 17, 2013 at 18:19:18:
I think the term 'negative feedback' for the layman casts negative aspersions on the engineering and design tool, that closed loop systems represents. Do not think of a sample of feedback being mixed with the input signal, which is incorrect and if it were true would cause destructive instability. Think of it as a comparator - a sample of the output is 'compared' to the original input instantaneously and if it differs, a correcting difference signal is generated to make the output come back into line. Isn't the objective to reproduce the input signal as accurately as possible? Open loop SET designs cannot correct for any nonlinearities thus the distortions are not compensated and are present in the output. These distortions are information NOT contained in the original signal, therefore they are undesirable if the objective is accurate reproduction of an electrical signal representing the original sound. Though it may sound pleasant, SET sound is NOT accurate to the original sound.
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Follow Ups
- RE: How does "negative" feedback work in an electronic circuit - mgbpuff 07/22/1306:38:59 07/22/13 (24)
- RE: How does "negative" feedback work in an electronic circuit - Tre' 08:22:34 07/22/13 (23)
- RE: How does "negative" feedback work in an electronic circuit - mgbpuff 11:51:53 07/22/13 (22)
- RE: How does "negative" feedback work in an electronic circuit - Tre' 12:27:06 07/22/13 (21)
- RE: How does "negative" feedback work in an electronic circuit - cpotl 23:04:05 07/22/13 (0)
- RE: How does "negative" feedback work in an electronic circuit - mgbpuff 12:33:26 07/22/13 (19)
- RE: How does "negative" feedback work in an electronic circuit - Tre' 13:03:05 07/22/13 (18)
- RE: How does "negative" feedback work in an electronic circuit - mgbpuff20342034 13:19:23 07/22/13 (17)
- RE: How does "negative" feedback work in an electronic circuit - Tre' 15:18:01 07/22/13 (15)
- No need to be insulting and condescending - - mgbpuff 15:31:55 07/22/13 (14)
- I have just read the link for the gentlman's treatise... - Cleantimestream 15:06:40 08/3/13 (10)
- No, the article I referred to contains conventionally ... - mgbpuff 05:21:40 08/4/13 (9)
- Oh, you mean like Stu Hegemen and David Hafler... both used positive feedback to reduce distortion~nT - Cleantimestream 14:51:05 08/4/13 (8)
- Please give me a reference ... - mgbpuff 17:21:03 08/4/13 (7)
- here you go... - Cleantimestream 23:21:26 08/4/13 (6)
- Well, I am not the best schematic reader .. - mgbpuff 05:40:24 08/5/13 (5)
- RE: Well, I am not the best schematic reader .. - Cleantimestream 13:11:57 08/6/13 (3)
- Examining the A300 schematic, I see .... - mgbpuff 14:28:29 08/6/13 (2)
- RE: Examining the A300 schematic, I see .... - Cleantimestream 03:50:33 08/7/13 (1)
- Thank you for this explaination... - mgbpuff 05:37:43 08/7/13 (0)
- RE: Well, I am not the best schematic reader .. - mcgjohn@yahoo.com 09:59:21 08/5/13 (0)
- RE: No need to be insulting and condescending - - Tre' 16:38:11 07/22/13 (2)
- RE: No need to be insulting and condescending - - mgbpuff 17:54:31 07/22/13 (0)
- Push Pull and 2nd harmonic - Bromo33333 16:44:35 07/22/13 (0)
- RE: How does "negative" feedback work in an electronic circuit - Renman 13:40:52 07/22/13 (0)
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