- Do tubes make a difference in amps?
- How often should preamp tubes be replaced?
- How do I know when my tubes need replacing?
- Should I get a tube or solid state amp?
- How long do amp tubes last?
- Do vacuum tubes sound better?
- How do you know if a vacuum tube is bad?
- Why is my amp making a crackling sound?
- How do you break in new tubes?
- What does a bad power tube sound like?
- Are vacuum tubes dangerous?
- What was the main disadvantage of vacuum tubes?
- Is a tube amp worth it?
- How much does it cost to replace tubes in an amp?
- What color should power tubes glow?
- Do preamp tubes affect tone?
- Do preamp tubes need to be biased?
- Does preamp affect sound quality?
Do tubes make a difference in amps?
I’ve, many times, had to turn the bass down on amps after swapping tubes, or putting in new tubes.
A good set of tubes can make an amp, a bad set of tubes can make for a bad amp..
How often should preamp tubes be replaced?
You should replace them when they are dead. *There is no set rule for how long they last, but in general, they last longer than power tubes. *Maybe twice as long or better life expectancy for power tubes. *They are also self-biasing of course, so don’t be afraid to change them yourself.
How do I know when my tubes need replacing?
A: These are the most common signs that tubes need replacement: Excessive noise (hiss, hum) including squealing or microphonic tubes. Loss of high end. … A muddy bottom end; Sounds like there is too much bass and note clarity is lost. Erratic changes in the overall volume. … The amp doesn’t work!
Should I get a tube or solid state amp?
Tube amps are generally more expensive in initial cost and to operate (because you need to replace the tubes occasionally), and solid-state amps are generally less delicate and more reliable. Many players, however, feel that tube amps yield a warmer, more musical tone and more musical-sounding distortion.
How long do amp tubes last?
Tube Life Span If you play at moderate levels, 10-15 hours a week… Preamp Tubes are generally at their best 2 – 3 years. Power Tubes are generally at their best 1 – 1.5 years.
Do vacuum tubes sound better?
Tubes sound better because their distortion products are more musical. … Those are the fundamental reasons why tubes simply sound better. Vacuum tubes are the more linear and require less feedback. Tubes are voltage amplifiers as opposed to transistors which are current amplification devices.
How do you know if a vacuum tube is bad?
When a vacuum tube develops an air leak (a small crack or bad seal by a pin for example) this getter color will change to pure white. If you see this you know with 100% certainty that the tube is bad. Third, look for a purple glow that is very focused around specific elements inside the tube.
Why is my amp making a crackling sound?
A dirty, oxidized, or compromised connection anywhere inside your amp will cause static-y sounds. Random crackles and pops: Your amp likely has faulty power tubes or preamp tubes. … If replacing your tubes does not fix the problem, you need to have a qualified tech check your preamp’s plate or cathode resistor.
How do you break in new tubes?
In the past I used to break in tubes in a relatively fast way by leaving the Phono preamp on for 2 or 3 hours and then off for an hour to let them cool down and then on again for another two or three hours and start again during the whole day, taking note the amount of hours the tubes have been actually working, …
What does a bad power tube sound like?
Crackling, squeals and feedback, excessive noise and muddiness or low output are all evidence of tube problems. Power tubes. The two main symptoms of a power tube problem are a blown fuse or a tube that begins to glow cherry red. Either are typically indicative of a power tube failure.
Are vacuum tubes dangerous?
These types of tubes are readily discerned by a competent trained health physicist, and are not a significant radiation danger, but they are a factor of 10 to 200 times higher than normal background radiation.
What was the main disadvantage of vacuum tubes?
Vacuum Tubes: Disadvantages High power consumption; needs heater supply that generates waste heat and yields lower efficiency, notably for small-signal circuits. Glass tubes are fragile, compared to metal transistors. Sometimes more prone to microphonics than transistors, depending upon circuit and device.
Is a tube amp worth it?
In many cases, tube amps do not require the amount of maintenance that they have a reputation for. As long as you properly take care of your gear, owning a tube amp is simple and very well worth it for the tone.
How much does it cost to replace tubes in an amp?
Some tubes are widely used and not expensive, typical approx. 10 dollars, however if you need a tube that’s rare then they can be 30 to 100 dollars each. How much does it cost to replace a fretboard? Guitars: I would like to buy a tube amp to create distortion.
What color should power tubes glow?
Although a blue glow indicates a tube is functioning normally, a red glowing metal plate indicates the opposite. A red glow within one of your tubes’ metal plates indicates that the tube is overheating, hence why it is glowing red hot!
Do preamp tubes affect tone?
Really overdriving a preamp tube and hitting it hard creates richer harmonics, distortion, and sustain. Backing off the gain can give you a shimmery clean sound. You can think of the preamp tubes as the tone shapers of your guitar amp.
Do preamp tubes need to be biased?
With preamp tubes, you don’t need to worry about things like biasing or using matched pairs as you do with power tubes. As long as your new tube is the same model as what you’re replacing (12AX7, 12AT7, 6SN7, etc.), you’re good.
Does preamp affect sound quality?
Conclusion. The sound contribution of preamps is not so much in its frequency response but in the texture it imparts on the sound. However, a preamp shapes the sound to a much lesser degree than one would think. Usually, its sound character only becomes obvious at high gain settings or when you drive it into distortion …