eldartford
Responses from eldartford
| Why are older tubes so much sought after NOS tubes are compared with new production by listening to them. It seems to me that comparitive measurements of what the tubes do to the signal waveform could lead to an understanding of what needs to be changed in new production tubes to make th... | |
| Why are older tubes so much sought after Larryi...The design of electronics so as to not rely on precision parts or trims is a well established practice in areas other than audio. In my area of work (missile guidance systems) we were forced to adopt this philosophy, quite apart from cost... | |
| Why are older tubes so much sought after Well designed electronics OUGHT TO BE insensitive to minor variations of components, including tubes. Perhaps this design objective is not met in some audio equipment. All things equal, an old tube should be inferior to a new one because of gas in... | |
| Why are older tubes so much sought after Mil Spec components were usually required to be much better than necessary. That was before cost control became important. Nowadays most military equipment uses commercial hardware whenever possible, which greatly reduces cost, improves (yes) reli... | |
| fuses - the $39 ones or the 85 cent ones Theaudiotweak..."Tube" preamp you say. Perhaps you should be concerned about the effect of a magnet on the electron beams in your tubes. At work, when testing a vidicon to calibrate it we found that the results varied depending on which way the de... | |
| fuses - the $39 ones or the 85 cent ones Magnetic "fuses". Where do these idea come from? I suppose the next step will be radioactive fuses. Even more mysterious, and therefore commanding even higher prices. | |
| Spectrum analyzer? Kr4...Thanks for your answers. Is there any device that can equalize delay at all frequencies? Anyway, I question your statement that delay should be uniform across frequency. In a highly reverberent hall, where delay is easy to hear, the tonal qu... | |
| Spectrum analyzer? But Kal...How would doing that make my system sound better? | |
| Spectrum analyzer? Kr4... No. But what would you do about it if it did? | |
| Spectrum analyzer? Kr4...The Behringer DEQ2496 autoequalization process gives the user a choice of FAST, MID, and SLOW response. Doesn't this answer your point about delayed reflections?I use the FAST so as to quickly find the appropriate curve, and then switch to S... | |
| Spectrum analyzer? If your equalization requirement at some frequency is a "cut" rather than a "boost" the "feedback destroyer" function of the DEQ2496 can do 1/10 octave resolution. Actually the DEQ2496 can simultaneously implement several sharp (1/10 octave) notch... | |
| Spectrum analyzer? The spectrum analyser in the Behringer DEQ2496 will do the job for about $350 (including the microphone). 1/3 octave.What's more, it can fix your problems once you have figured out what they are. | |
| Magnepans and cats, do they mix? The plastic bags can be used in a different way. Need I explain? | |
| silver vs silver coated digital coax? Some wires promoted as "silver" are actually silver plated. Don't fall for this. | |
| How can you tell when you need to replace tubes? When I used tube amps this question always bugged me. Being bugged distracts from musical enjoyment. Tubes degrade gradually, so it is not easy to recognize how bad they have gotten.The best suggestion I have heard is to keep a spare set of new tu... |