- Do preamp tubes need to be matched?
- Can bad preamp tubes cause volume loss?
- How long do preamp tubes last?
- How do I know when my tubes need replacing?
- Is biasing a tube amp necessary?
- Do tubes affect tone?
- How often should preamp tubes be replaced?
- Is it bad to leave a tube amp on for a long time?
- Are tube amps worth it?
- Are amp tubes supposed to glow?
- How long should a tube amp warm up?
- Why do tube amps sound better?
- Are tube amps really better?
- What is the best tube tester?
- How do I know if my preamp tubes are bad?
- Which 12ax7 sounds best?
- How long does a 12ax7 tube last?
- Why do tube amps sound louder than solid state?
Do preamp tubes need to be matched?
Preamp tubes are mostly self biasing, and do not require matching although some audiophile’s insist that their preamp tubes be matched from side to side.
Most preamp tubes have two sides, and are kind of like having two tubes in one.
Having the two sides matched perfectly is not necessary..
Can bad preamp tubes cause volume loss?
Use the wooden part to tap each of the preamp tubes and main power tubes. A good tube will be a dead ‘thud’ sound, so if you hear one that has a high ringing rattling sound, that’s the bad tube. Bad tubes will make volume drop and tone sounds will be dulled. When a tube goes bad, this is exactly what happens.
How long do preamp tubes last?
2 – 3 yearsPreamp Tubes are generally at their best 2 – 3 years. Power Tubes are generally at their best 1 – 1.5 years. Rectifier Tubes are generally at their best 3 – 5+ years.
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!
Is biasing a tube amp necessary?
On 95% of all tube amplifiers, you’ll need to bias the amp whenever you change tubes. Some amps will never need to be biased because they come out of the factory at a fixed bias like Mesa/Boogie amps. … You can then use the correct tube spec in your Mesa/Boogie amp.
Do tubes affect tone?
Sometimes a power tube may glow blue inside. It has no effect on the sound. This phenomenon only happens in a tube with better-than-average vacuum (pure). Therefore, the tube is actually a better-quality tube!
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.
Is it bad to leave a tube amp on for a long time?
There is nothing wrong with leaving on your amp for a long time. It doesn’t wear out the tubes faster than if you were to play it for eight hours straight. Probably even less, because you don’t actually play it, but just leave it. Imagine how long before a show the equipment will be standing on stage, ready to play.
Are tube amps 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.
Are amp tubes supposed to glow?
A: That blue glow is just a side effect of a power tube — a fluorescent glow in the blue spectrum. The tube is fine! It actually indicates that the vacuum inside the tube is very good, which is what allows this phenomenon to occur. It will not have any effect on the performance or tone of the amp.
How long should a tube amp warm up?
20 to 30 minutesIt is important, too, that the warmup that you give your tube amp is very thorough. If they are not warmed up properly, the tone of your playing will not be as good as it ought to be. As a rule of thumb, your tube amp needs to be warmed up for 20 to 30 minutes at least before you can start playing your guitar.
Why do tube amps 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.
Are tube amps really better?
Tube amplifiers sound better because of the euphonic distortions they add to the music, as well as plenty of other reasons I’ll cover below. … The ways that tubes distort when pushed to the edge are much more musical than the artificial sounds that come from transistor amplifiers when overdriven.
What is the best tube tester?
The Triplett models The Triplett 3444 and 3444A are the top-end versions! Both are excellent tube testers. The difference between them are small. The 3444 is tube operated in that the measurement amp and oscillator are tubes.
How do I know if my preamp tubes are bad?
Preamp Tubes. Preamp tubes usually cause problems through noise or microphonics. If noise, you will hear hiss, crackling, popping or similar issues. If you hear squeal, hum or feedback, it is typically a microphonic tube. Noise from microphonic tubes will typically increase with a volume increase.
Which 12ax7 sounds best?
Best 12AX7 For Audio Genalex Gold Lion ECC83/B749 is the ultimate in current production 12AX7. Gold Lion ECC83 delivers a full sonic range with excellent articulation. Like all Gold Lion Tubes, Gold Lion ECC83 is built with meticulous quality, which makes it ideal as the premium upgrade for any audio 12AX7 application.
How long does a 12ax7 tube last?
about 10,000 hoursSmall signal tubes like a 12AX7 or 6922 will work well on average for about 10,000 hours. If you leave your equipment on 24 hours a day, well you do the math: There are 8,760 hours in a year.
Why do tube amps sound louder than solid state?
Last but not least, one reason why a tube amp might in fact be louder than a solid-state amp with honest and equal wattage ratings is that tube amplifiers typically have a much more gradual loss of headroom, where the sound gradually becomes more compressed and harmonic, before flattening into outright square-wave …