Provides a very smooth sound with well-defined tones suitable for audio and guitar amplifiers. This is typically not enough amplification to actually drive a guitar signal enough to sound good. Typically 12AU7 tubes are used in tube-driven effects within guitar amps such as spring reverb or tremolo effects in Fender amps and are commonly used in microphone preamps and tube microphones.
Most circuits that are designed for a 12AX7 will not react well to the significantly lower gain of the 12AU7. It can also cause issues with the bias of the amplifier, which can lead to very serious damage, including blowing the amp circuit! 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.
All 9 pin mini dual triodes suppossedly can be rolled into the voltage amp stage of my Llano Trinity Edit Delete. Both tubes are electrically identical. The "A" is a slightly more rugged construction which results in lower output microphonics. The "A" designation is more for application purposes, designed to be used in a series heater circuit of tv's, radios and other older electronics.
But for modern audio, the 12V circuits are not in series and therefore should make no difference which designation you use. What are you using in your Trinity's. By using our site, you consent to the use of cookies by us. OK Learn more. Thanks, Rob! I have checked the site many times to see if it was available online..
But I still cant find the info I am looking for I would guess it does since the bass sounds tighter when I invert my speaker cables. Have you tried inverting your cables? Assuming nothing else in your system inverts phase back again it should make a difference.
Greg I'm glad that my post helped you out Greg!
0コメント