12AX7A is an “updated” lower noise version of 12AX7. Not true about “lower noise version.” The 12ax7a was designed to be able to be used in circuits that used either parallel or series filament heater circuits. The original 12ax7 was only designed to be used in parallel filament circuits.
What is the best sounding 12AX7 tube?
Best 12AX7 Tubes for Hi-Fi 2021
- 1 Genalex Gold Lion Best 12AX7 Tube for Hi-Fi. See more reviews.
- 2 JJ 12AX7 Preamp Vacuum Tubes (ECC83) for Hi-Fi. See more reviews.
- 3 Tung-Sol 12AX7 Preamp Tube for Hi-Fi. See more reviews.
Are 12AU7 and 12AT7 interchangeable?
The 12AX7, 12AT7, and 12AU7 all belong to the same family of nine contact, twin triode tubes. In many cases, these tubes are interchangeable and can easily be swapped.
Can 12AX7 replace 12AX7A?
These are not military tubes and are not NOS tubes at all. Also, as tube manufacturing became refined, the 12AX7A became much quieter. So much in fact that a lot of 12AX7A’s were labeled 7025’s (a very quiet version of the 12AX7). So the bottom line is that you can use either of these tubes in your Marshall amp.
Are Tung Sol tubes any good?
The current TungSol 12ax7 is by far the best quality out there . The highs are clear and clean an the entire sound is transparent compared to a JJ . Yes , they’re somewhat more expensive , but for V1/2 in a clean amp they are unbeatable , Tubedepot will provide every possible grading option too , which others don’t .
Is 12AX7 the same as ECC83?
The 12AX7 Valve (or 12AX7 vacuum Tube) is a small preamplifier valve which is identical to the ECC83 – same valve, just a different name. It has two identical triodes both of which have a high voltage gain. In fact, it is one of the few small-signal vacuum tubes in continuous production since it was introduced.
Who makes Ruby Tubes?
The Magic Parts Company
COMPANY PROFILE The Magic Parts Company was established in 1984 by Mr. Thomas McNeil, who to this day remains active in his role as company owner and President. Distributors of RUBY Tubes and a full line of amp parts, accessories, tools and publications, Magic Parts specializes in the vintage tube.
Where are Tung-Sol tubes made?
Russia
The Tung-Sol name and trademark have been acquired by the New Sensor Corporation. This new production Tungsol tube is manufactured at their Xpo-Pul factory (also known as Reflektor) in Saratov, Russia.
What’s the difference between a 12AX7 and a 12AT7 tube?
It depends on which tube you are replacing. Let’s assume it is the first preamp tube. 12AT7 * * * * The 12AT7 is a clearer sounding tube than a 12AX7 but with a little less gain. 12AU7 * * * * The 12AU7 sounds like a 12AX7 but produces a lot less gain in the preamp circuit.
Can I substitute a 12AX7 for a 12AT7?
ANSWER – You can substitute a 12AX7 for a 12AT7, 12AU7, 12AY7, 5751 or a 7025. But what are the differences? It depends on which tube you are replacing. Let’s assume it is the first preamp tube. 12AT7 * * * * The 12AT7 is a clearer sounding tube than a 12AX7 but with a little less gain.
Are there comparative gain differences among 12ax7s?
However, in reality there are comparative gain differences among 12AX7s. The purpose of this comparison is simply to provide guitar players with a frame of reference to help in finding the best current production 12AX7 for their needs.
What does the s in 12AX7A mean?
12AX7 tubes produced today all use spiraled heaters, however. So having an “S” suffix doesn’t mean anything special anymore. When it comes to 12AX7A, 12AX7B, and other suffixes on current production tubes, you can consider it part of the product name and not worry too much about it.
