Is a 12AX7 the same as a 12AT7?
The 12AT7 tube is almost identical in looks to the venerable 12AX7 tube, and in many ways can be used for the same applications as a 12AX7. However, the 12AT7 features a somewhat lower gain (typically about a factor of 60-70) and runs at a higher current.
Can you use a 12AT7 in place of an 12AX7?
You can interchange a 12AX7 with 12AT7, 12AU7, 12AY7 or 5751 as they are all the same pin structure, however they will each give you a different result in your amp. Each of these tubes has a different gain factor, which means some will give higher gain and others lower gain.
How long do 12AT7 tubes last?
about 10,000 hours
Small signal tubes like a 12AX7 or 6922 will work well on average for about 10,000 hours.
Can a 12AX7 be used as a power tube?
But yes, most of the driving a 12ax7 as a power valve stuff has been about them in general, not on a valvetronix specifically. On a valvetronic with the master at 10 it still gives a fair amount of power stage compression. Actually power tube distortion isn’t just for “uber metal”.
What should you not do with an amplifier?
Never, never, never run the amp with no speaker plugged in. This can cause major damage. Do not flip the power switch off, then back on rapidly. This can cause power supply damage.
What is the difference between the 12AX7 and the 12AT7?
Like the 12AX7, the 12AT7 has many different variations of this model created with certain specifications in mind, such as low noise or a more “rugged” sound. The 5965 is a common version of the 12AT7 that has a lower output gain of 47. The 12AU7 has the lowest gain of these three, with an amplification factor of 20.
What is a 12AT7 tube and what does it do?
The 12AT7 is another very well-known tube among guitar players. It has a much lower gain output at 60, but what you lose in gain you get back with more headroom, higher fidelity, and an increased current output. Because of their high fidelity, they are also used in many tube microphone preamps, compressors, recording equipment, and organs.
Can I use a 12AU7 instead of a 12AX7 tube?
The 12AU7 makes a less ideal swap for the 12AX7 because other factors such as Bias come into play and the mismatch can cause the tube to sound unpredictable and very quiet. You may need to look into your guitar wiring to get the proper resistance load necessary to use a 12AU7 in place of a 12AX7.
What can I use instead of a 12AX7?
The 12AX7 is used in many audio preamps and in guitar effects pedals, and comes in many different versions and brands. The 5751 is a common military-grade substitute for the 12AX7, with a lower gain output of 70.