Sane answers based on real-world personal experience appreciated! Aug 10, 2. Posts: 2, Yes your amp will self destruct in 5 seconds As would running a , or a 12AY7.
Aug 10, 3. Posts: 7, Aug 10, 4. Yes, try a Aug 10, 5. Posts: 3, Aug 10, 6. Posts: Aug 10, 7. Aug 10, 8. I am going to try and reduce the gain in v1 of my 5e3 build. I currently have 6n2p russian tubes in v1 and v2 I'm going to put a 6n1p in v1 and see if I can get a little less gain.
Aug 10, 9. Without getting too far into the physics of it, tubes are electronic devices that amplify the electrical current of your signal. A Fender Champ only has 1 tube in the preamp section, and a total of 3 tubes in the entire amp circuit, while a Dual Rec has 5 tubes in the preamp section, and 11 in its entire circuit. If you want to go loud without creating a fuss, check our guide to the best amp-in-a-box pedals for getting hot amp tones without the volume.
In the circuit of a guitar amp, there are two major sections where you will commonly find tubes. The first is in the preamp section, which is where the very low output signal from your guitar is amplified. The other is in the power amp section, where the signal is amplified even further to actually project sound out of the amplifier through a speaker. Since these two different applications require vastly different amounts of amplification, different tubes are typically used.
They are affordable and give your amp a little bit of an extra gain boost. This Russian tube is full-bodied and bright with a more straightforward presentation. It packs a lot of bite with its higher-than-normal gain.
In overdrive, it offers a lot of crunchy fizz. Mesa Boogie also makes really high-quality 12AX7s , and they are rigorously tested to some of the highest standards to ensure that they all work well in your equipment.
Ultimately, you should do what makes the most sense for your financial situation! Technically, yes, you can physically interchange a 12AX7 tube for a 12AU7 tube in your amp without risk of major damage to your amp. The other issue you can run into is the fact that the 12AU7 has a higher plate voltage than a 12AX7 , and this difference can cause a host of problems in your amp circuit that was designed around the use of a 12AX7.
If you own a hybrid amp , definitely do NOT attempt to swap them out. Hybrid amps are a different beast altogether. It is absolutely true that guitar preamp tubes affect the overall tone and response of your guitar amp or any other audio equipment for that matter.
Different brands tend to design their tubes for different applications, even for the same model numbers. Some 12AX7s are designed for the absolute highest amount of gain possible , while others are designed to last a long time or be the most durable. A general comment. The 12AT7 family has approximately 3. Two questions emerge. More distortion. So no matter what the circuit, conditions won't be optimal. Note that in a RIAA phono preamp circuit using a single dual triode, a 12AT7 tube will not have adequate open loop gain to follow the equalization feedback loop at lower frequencies.
Thus you will end up with very muddy and inadequate midrange and bass response. In general, 12AX7 tubes are selected where high open loop gain is necessary, 12AT7 tubes where higher output current drive is more important than high voltage gain.
Probably don't second guess the designer unless you understand the circuit operation. In your case substituting a 12AX7 tube will result in more feedback, a brighter and crisper sound which you may or may not like but leave the unit more sensitive to the output load. Regards, Frank Van Alstine. Pages: [ 1 ] Go Up. SMF 2.
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