Blue tube 12ax7a bass driver

These tubes are cheap enough that you can easily swing trying them both for yourself. As a bass player running these tubes in an ampeg svppro preamp. Overall, id say this is an excellent tube for clean tones, but the overdrive left me feeling a bit flat. Got my first tube amp after playing with hybrids and solidstate for the last 10 years. Tubeworks tube driver 301 effect pedal excellent shape. The bugara 12ax7a preamp tube are ultralow noise, warm preamp tubes with amazing distortion for power stage preamps.

Tube works blue tube 12ax7a bass driver tube bass preamp. Bk butler tube works blue distortion valve saturation guitar bass keyboard pedal blue. Tube works blue tube 12ax7 tube enhancer overdrive effects pedal free usa ship for sale online. Rca and sylvania first introduced the 12ax7 to the world in the late 1940s. Skip to main content skip to footer site51274034469340 site512747416322999592 new 212200 groove tubes gold series gt12ax7c preamp tube site51274034469340. The 12ax7 commonly known as an ecc83 would have to be the most widely used tube in existence. Pick the highest quality 12ax7a or 7025 7025s are nearly impossible to find.

These tubes are the starting point for amplifying your sound. Very low noise and microphony make this tube an excellent candidate for many touchy preamps and phonostage applications. Tube driver pedals, real tube overdrive, tube works, etc. The bluetube dp dual path preamp combines both solidstate and tube. Also, as tube manufacturing became refined, the 12ax7a became much quieter. Bk butler tube works tube driver, vintage effects pedal. No longer available vintage tube works blue tube 12ax7a. Excellent in vibrato or reverb circuits where consistent, high output power is desired. Tube works blue tube 12ax7a bass driver tube bass preamp pedal duration. I still use the blue tube that i traded the overlord in for.

The ruby tubes ecc83 12ax7a preamp tube is a handpicked tesla with low gain and full, robust tone. But my second favourite tube is the raytheon you both mention. This new reissue of the famous mullard 12ax7 made in russia is the answer to your woes. Valvo blue label with gold pins are considered the best 6201s by some, including me, but not anymore. It is possible to obtain many classic old amp sounds with your present solidstate.

Theres so many conflicting opinions on whether or not a tube is warm or neutral. Tube works valve distortion guitar bass keyboard pedal overdrive bk butler blue for sale online. Swr baby baby blue musical instruments and accessories. Groove tubes gold series gt12ax7c preamp tube guitar. After much debate and thought i went with the fender super bassman. So the bottom line is that you can use either of these tubes in your marshall amp. Depending on the pedal, such as those by tc electronic, mxr, and electroharmonix, you can get anything from a warm, rich overtone to a harsh and. Check out these unsolicited customer videos on youtube. An ultra lownoise dual triode preamp tube designed for power stage preamps. Notice the 12at7 driver tube, it can be substituted with a 12ax7 driver for greater tonal choices. It is possible to obtain many classic old amp sounds with your present solidstate and.

Very hard to find, this tube is vintage and extra rare. This unit works perfectly and is in used condition with some cosmetic wear. Butler designed tube driver circuit with some component differences. I use jj telsa 12ax7 and 12au7 in my custom vrd mono blocks i build for customers as the standard tube compliment. Roland r805 jazz expansion card jazz sounds gear rebound. Bk butlers original hand made tube driver guitar pedal used by eric johnson, david gilmour, billy gibbons, joe satriani, kenny wayne shepherd, robbie krieger, and many other pros. Discussion in audio hardware started by erocka2000, mar 16, 2015. The engineers at swr popped the amplifier section of the original, legendary swr baby blue ii combo amp which many insiders insist contains the bestsounding preamp swr ever made atop a custom swr 1x10tweeter speaker complement and came up with the most portable pro combo to date. The real tube includes a mid range knob, allowing for a wider range of tones to be dialed in. Bk butler tube works tube driver 12ax7 overdrive effect pedal valve free. I removed the stock 12xa7 and replaced it with a lower output tube cant recall which right now and im too lazy to get out the screwdriver. Siemens 6201s have excellent bass if for any reason you need a little extra at that end of the frequency spectrum like bass shy monitor speakers.

All bugera tubes are subject to rigorous quality tests such. So much in fact that a lot of 12ax7a s were labeled 7025s a very quiet version of the 12ax7. See all about 12ax7 tube page for answers on common. If you are looking to upgrade the tubes in your amp, 12ax7 in v1 where you want to start. Myles, i am flattered, thank you for your cumpliments, it means a lot coming from a skilled amp pro and tube guru like you. Real tube by tube works other than one being in super cool enclosure, and the other in a buttugly enclosure, the 4 knob 911 tube drivers and 5 knob real tube versions are basically the same patented b. Tube works blue tube 12ax7a bass driveriver pedal tube works blue. You can use any current production 12ax7 tube as 12ax7a, ecc83 or 7025. Works tube blue tube 12ax7a pedal driveriver bass bass driveriver works 12ax7a tube pedal tube blue. Tube amps use multiple tubes, and the first position is referred to as v1. So much in fact that a lot of 12ax7as were labeled 7025s a very quiet version of the 12ax7. The ecc803s is a very low noise, special quality 12ax7, made with the oldstyle telefunken german precision. The 12at7 is a miniature, highmu, twin triode designed for use as a groundedgrid radiofrequency amplifier or as a combined oscillator and mixer at frequencies. Its just that an nos 12ax7a tube is considered to be premium over the 12ax7.

Eric johnson interview guitars amp effects on up close album. Sylvania 1950s nos nib 12ad7 black plate hifi tube low noise 12ax7a marconi. This tube is a main stay in many guitar and bass amplifiers, microphones and outboard gear. Your blue tube is intended primarily for bass, key. Has a smoother midrange similar to nos mullards though not quite the same. The heart of the blue tube is the classic 12ax7a twin triode vacuum tube. Find great deals on ebay for 12ax7 and 12ax7 telefunken. The pots are clean and it operates and sounds excellent. Sep 14, 2014 tube works blue tube 12ax7a bass driver on guitar gibson les paul custom tube bass preamp pedal b. Ge 12ax7, rca 12ax7a, anos rca 12ax7a, brimar cv492 or, rft 12ax7. My blue tube says enhancer on the label, but ive also seen ones that say bass driver, or something to that effect. The unit routes your input signal through a 12ax7 vacuum tube and provides front panel. Page 1 the heart of the blue tube is the classic 12ax7a twin triode vacuum tube.

My amp settings are usually bass mid and treble all the way up unless. I am giving some consideration to the idea of recording small sound clips of the tube combinations as well as the documentation of the complete setup including the settings from the triaxis patches. The sexiest midrange ive ever heard, hope the new shiny plates are just as good. Because of the high gain, 12ax7 in v1 has a lot of effect on sonics. Here is an excellent condition and very rare bk butler designed tube works bass driver.

Mullard 12ax7 ecc83 price of nos 12ax7s got you down. One of the most worthwhile spots for these tubes in a piece of audio equipment, is as drivers for highperformance power tubes kt88s 6550s ive used them in my mcintosh 275 to drive nos gold lions, eats, and currently shuguang black treasure series kt88zs the effect is a bit like adding octanebooster to your gas. Ive even used on bass and even a fender rhodes keyboard. The telefunken 12ax7 also has a very long life span and will outlive all cheaper 12ax7s by a.

Dec, 2014 12ax7 12au7 tube preamplifier power supply schematic. Also, the tube proved to be quite noisy, with a noticeable hum and hiss coming from the amp at idle. They have been used to drive audio units for decades and for good reason. The 2006 bk model is delivered with a 12ax7 tube which is a bit too.

Booster, od, fuzz, distortion bk butler bluetube driver. Butler rare overdrive pedal free new fender 10 cable description can be trusted without worries, and a legitimate seller that ships fast. Heart of the tube driver is a real handselected 12ax7 tube by bk butler himself. The blue tube preamp is a single space rackmount device for use in the signal chain between your organ or guitar, bass, etc and an amplifier. What is the difference between a 12ax7 and a 12ax7a. Apr 20, 2014 tube works blue tube 12ax7a bass driver tube bass preamp pedal duration. Im really torn between telefunken and amperex at this point. Fender amp preamp tube layout and recommendations kca.

K butler tubeworks tube driver real tube overdrive effects pedal. Bk butler tube works tube driver 12ax7 overdrive effect pedal for sale online. Butler real tube overdrive the tube driver is a boosteroverdrive pedal with an ic and vacuum tube driven preamp circuit inside, used by guitarists such as david gilmour of pink floyd, eric johnson, billy gibbons, joe bonamassa, joe satriani, kenny wayne shepherd, j mascis, david holt, keith urban, and others. Lot of 16 vintage 12ax7 7025 at7 au7 av ay7 preamp tubes working rca ge telef lot of 16. This is one of the premier drive units available for bass guitarists. No longer available vintage tube works blue tube 12ax7a bass driver these are no longer made and are generally considered to be the best sounding tube bass preamp pedal ever built. Today, it is by far the most common preamp tube used for electric guitar amplification and there is an almost overwhelming supply of current production options to choose from. Tubeworks diff between 901 real tube, 903 blue tube and. Comparison of 5751 tubes raytheon, sylvania, and more.

Tube works blue tube 12ax7 bass driver quick and dirty. If you do use channel one, this tube is the most critical to tone for that channel. Siemens 6201s have excellent bass if for any reason you need a little extra at that end of the frequency spectrum like bassshy monitor speakers. Tube works blue tube 12ax7 bass driver quick and dirty ped. A 12at7 is a lower gain tube from a 12ax77025ecc83. Your blue tube is intended primarily for bass, keyboard and guitar players who desire to warmup and enhance their sound by using the classic vacuum tube as the vehicle. Telefunken ecc83 12ax7 this tube is a main stay in many guitar and bass amplifiers, microphones and outboard gear.

The 12at7 is used as a driver tube in many old fender amps. Tube works blue tube 12ax7a bass driver on guitar gibson les paul custom tube bass preamp pedal b. It is an excellent tube for recording studio applications due to its extreme low noise. Unfollow tubes 12ax7 to stop getting updates on your ebay feed. Compared to the mullard, this tube had a noticeably less open sound to it. Rca 702512ax7 tube is my personal first choice, second is the amperex 12ax7ecc83 third is groovetubes 12ax7a gold pins and electroharmonix 12ax7 gold same tube just relabled rca 12au7a clear top, mullard cv4003ecc82, jj tesla ecc8212au7 gold pin or jj electonics ecc80212au7 gold pin. In the mid 60s tube manufacturers started making the 12ax7s to 7025 specs. Bk butler tube works tube driver 12ax7 overdrive effect pedal.