Timeline for Vacuum tube distortion mechanism
Current License: CC BY-SA 3.0
6 events
| when toggle format | what | by | license | comment | |
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| Jun 1, 2015 at 12:13 | comment | added | Level River St | @EJP the interval known as a tenth in music is either a minor tenth, 12+3=15 semitones (2.3784:1 eventempered or 12:5 just) or a major tenth 12+4=16 semitones (2.51984:1 eventempered or 5:2 just.) These are not harmonics The interval known as a twelfth in music is 19 semitones (2.997:1 eventempered or 3:1 just, the 3rd harmonic.) The 6th, 10th and 12th harmonics would be known musically as a 19th, major 24th and 26th respectively. As I said, circuits with both symmetric and asymmetric characteristics are used and it's a matter of taste. Anyway, the 10th and 12th harmonics will be quite weak. | |
| May 30, 2015 at 20:03 | comment | added | user207421 | @steveverrill Power-of-2 harmonics correspond to octaves. The other even ones correspond to tenths, twelfths, ... The notion that all even-order harmonics are consonant is an engineering myth. | |
| Mar 26, 2015 at 23:37 | comment | added | Level River St | Symmetrical circuits are good when it is desired to eliminate distortion, as they (theoretically) completely eliminate even harmonics. Where distortion is deliberately added, as in guitar amplifiers, asymmetric circuits / even harmonics can be very desirable, depending on taste. Even harmonics correspond to octaves. instructables.com/id/… sums it up, though I don't know why he's adding a diode clipping network to a valve amp. As he says, an asymmetric (say 2 forward, 1 reverse) diode network gives the most "tube like" sound. | |
| Mar 26, 2015 at 21:39 | comment | added | Mr X | Excellent answer! This is exactly what I was looking for. | |
| Mar 26, 2015 at 21:39 | vote | accept | Mr X | ||
| Mar 26, 2015 at 19:34 | history | answered | Olin Lathrop | CC BY-SA 3.0 |