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In Reply to: "Everything on the bias circuit is audible" posted by Chip647 on April 7, 2016 at 05:19:13:
Well, a long time ago I came to the conclusion that one of the worst enemies in hi-fi audio equipment building is to standardize and simplify, especially by simple textbook physics and electronics. Sorry, but to progress to a higher level of sounding, the constructor has to open his mind and ears. A fixed bias circuit is something much more than a negative DC source to your tube grid, it's a combination of elements and each element has its own sound signature. The wire, the resistors, the capacitors, the choke, the rectifier, the transformer and the power cord. The combinations of these elements + the well engineered schematic + the tube operating point will give you a certain sound that you may have to tweak further.
I mean no offense by this post, I just share my personal opinion.
But if I have to go into this kind of debate again, I prefer to stop typing.
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Follow Ups
- RE: "Everything on the bias circuit is audible" - aknaydenov 13:52:52 04/07/16 (22)
- RE: "Everything on the bias circuit is audible" - cpotl 17:52:23 04/07/16 (0)
- RE: "Everything on the bias circuit is audible" - Tre' 16:44:37 04/07/16 (20)
- RE: "Everything on the bias circuit is audible" - aknaydenov 23:47:45 04/07/16 (19)
- RE: "Everything on the bias circuit is audible" - cpotl 17:22:01 04/08/16 (16)
- RE: "Everything on the bias circuit is audible" - aknaydenov 05:31:57 04/09/16 (15)
- RE: "Everything on the bias circuit is audible" - Tre' 13:03:45 04/09/16 (13)
- Timbre - Tre' 14:10:48 04/09/16 (11)
- Attacks come first in importance, and then decays, and harmonics on the continuus tone come last - Timbo in Oz 17:15:17 04/12/16 (10)
- RE: Attacks come first in importance, and then decays, and harmonics on the continuus tone come last - Tre' 18:19:47 04/13/16 (2)
- The bit below the quoted article noted that this was opinion. - Timbo in Oz 22:25:17 04/13/16 (1)
- RE: The bit below the quoted article noted that this was opinion. - Tre' 11:35:31 04/14/16 (0)
- No Valve Rectifiers? - Triode_Kingdom 13:09:29 04/13/16 (6)
- two of those resistors that coe n slowly one on the primary AC feed and one on the HT secondary. - Timbo in Oz 14:41:48 04/13/16 (5)
- I don't think that's very effective - Triode_Kingdom 08:21:40 04/14/16 (0)
- What, pray tell, is 'coe n'? (NT) - jeffreybehr 18:42:18 04/13/16 (3)
- come on? Sorry - Timbo in Oz 21:27:28 04/13/16 (2)
- RE: come on? Sorry - aknaydenov 10:38:17 04/14/16 (1)
- RE: come on? Sorry - drlowmu 21:02:47 05/01/16 (0)
- As Richard C. Heyser conjectured... we know not ... yet... what to measure.~nT - Cleantimestream 13:29:44 04/09/16 (0)
- +1 - drlowmu 10:46:01 04/09/16 (0)
- What test equipment do you own or use? (nt) - gusser 11:49:43 04/08/16 (0)
- Essentially what Richard C. Heyser said.... He was embarking on why before he died-nT - Cleantimestream 08:31:29 04/08/16 (0)
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