Bk butler tube driver bias knob

I got an upgrade offer by mr butler to add a bias knob on it. His classic tones did not utilize a bias knob model. I expected to receive my tube driver in about ten days, but i received it on the 4th of febyesterday. Tube driver real tube overdrive bk butler chandler the original, classic 4 knob tube driver with the iconic case color and graphics, made circa 1985 to 1987. Need help, bk butler tube driver fender stratocaster. So, i started hunting for some videos or any info on bias knob. I would be tempted to bring the internal offboost source trim to the outside as it could make the gain boost more useful. The bk butler comes as a tube driver model and is available with a bias knob for 12ax7, 12at7, and 12au6 preamp tubes. Bk butler tube driver feature requests kemper profiler forum. The core of the pedal is a handselected 12ax7 tube which gives you a lovely sort of fuzzdrive sound than can sound amazingly smooth and textured in the hands of masters like david gilmour who still features 2 of these within his rig. Bk butler tube driver page 2 joes guitars, amps and gear. Hi andrea, i have the bk butler tube driver with bias mod as well, i use a nos yugo real tube tho 12ax7. The mosfet driver is based on the legendary bk butler tube driver.

I then set the tube driver level to just below 12, which is a bit more than ej to compensate for the loss of gain from backing off the bias knob, plus im running the pedal into a clean fender hot rod deluxe, boosted with a bb preamp with the gain set to 11. The most recent posted schematic appears to be more accurate than the previous ones based on my old tube driver. There are videos but nothing that shows you or elaborates the sound difference with bias turned up or down or in mid. Used bk butler tube driver wbias knob effect pedal.

I have never seen one dated earlier than 1985, but butler said he first designed this version in 1983. The reissue my words, not bk butlers, is the new bk butler tube driver, which is the original design. Nov 20, 20 just recently sold my 3 knob version to another member, he installed a 12at7 i believe, reckons its a killer pedal now, i had a 12ax7 in there and it was too gainy for me. For the bias control my favorite settings are maximum for gilmour tones and 10 notches below maximum for my original tones, which is roughly 2. Jul 02, 2016 bottom row left to right a bk butler 911 tube driver reissue from 2007, a 911 reissue with bias knob on back from 2008, a 901 real tube from 1987, an original 911 tube driver from 1994, and a 903 smooth pick pedal from 1997. Limited quantities and limited time offerdont delay this is the holy grail of pedalsships directly from bks lab. I will say the box didnt make me able to play like eric johnson but i finally got that violin tone ive been. Tube driver without tube driver, i simply cannot get my famous violin tone eric johnson. Yeh, im just using the stock valve, which i believe is a 12ax7, but ive got the bias knob set to 10o clock, which changes the characteristics of the valve by limiting the voltage supplied to it, or something along those lines, so im not sure what the valve is effectively acting as it certainly doesnt sound like how a 12ax7 would usually sound through the standard tube driver.

Chandler tube driver vs tube works 911 telecaster guitar forum. 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. Bk butler 911 tube driver beigeblack for sale online ebay. The knob is attached with duct tape temporarily, i. I have a page about gilmours various tube drivers and settings here. I ordered the bias modded tube driver from bk on monday the 2nd of feb. So in the last month or two ive had an epiphany of my perfect toneand i ended up in my head with an eric johnson kind of toneso i did some surfing and trying out and i stumbled upon b. The mids control will be sacrificed and replaced by the bias control.

Apr 06, 2012 4 modify the stock component values to match the reissue b k butler tube driver. Bk butler tube driver page 2 joes guitars, amps and gear joe bonamassa forum the official forum for all things joe bonamassa, guitars and blues music. The tube driver is a holy grail type pedal, but many people, especially younger players, have never heard of it. Skip to main content skip to footer site51244472 used 1244472 in store used used bk butler tube driver wbias knob effect pedal. The bk butler tube driver has a sordid manufacturing history, having been made at various times and various places under both the tube works and chandler names, before finally being produced in original form again by butler himself, via his company, butler audio. Bk butler tube driver 5knob demo original bias mod vs. What do you guys know about the bk butler real tube driver. Bk butler tube driver 5knob demo original bias mod vs diy.

It adds a whole other dimension and is hard to imagine the pedal without. Dear bk, gday there bk, just got the tube driver in my hot lil hands this morning. I believe the ones bk is making now have a yugoslavian tube in them also alot of guys actually will put a 12au7 in, which is lower output and yields a smoother, fatter tone i used to have one in my 3 knob td, and it did make a. Heres what a typical customer wrote me about the bias mod. Unfortunately, im interested in the version with the bias adjustment and the price is outrageous. 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. Used bk butler tube driver wbias knob effect pedal guitar.

The knob is attached with duct tape temporarily, i drilled a hole later. The bk butler tube driver is the quintessential overdrivebooster pedal and comes with an ic. It was 9v powered, like most pedals, making it more marketable to a larger crowd. When i first tried it i thought i remember the pedal. The core of the pedal is a handselected 12ax7 tube which gives you a lovely sort of fuzzdrive sound than can sound amazingly smooth and textured in the hands of masters like david gilmour who still features 2 of these within his. A page about gilmours tube drivers can be found here here david gilmour tones david gilmour has been an avid tube driver user since the 1990s. A pair of adjustablebias mosfet gain stages take the place of the 12ax7 vacuum tube, otherwise the circuit is true to the original schematic. A four knob version of the tube works 901 real tube pedal, which was an improved tube driver.

Used bk butler tube works tube driver, vintage tube overdrive pedal from the 1980s. Knockoff made by chandler after butler parted ways with them. I found an old 3 knob version in japan for cheap so i bought it and emailed bk about its history. Bias mod in tube driver on right made by bk butler. These pedals have to be dialed in for each individual amp and guitar combination as they are relatively low output and the tube drive tends to kick in at a lower level than some pedals. Butler tube driver 5 knob w bias control youtube eric johnson interview guitars amp effects on up close album part 3 of 3 duration. He recommends the 5 knob model with the added bias control. There are videos but nothing that shows you or elaborates the sound difference with bias turned up. Butler tube driver famously used by david gilmour, eric johnson, billy gibbons and joe satriani to name a few.

Chandler tube driver vs tube works 911 telecaster guitar. Special 5th knob bias mod information butler audio. He is still handbuilding tube driver pedals, and says he still does the occasional td with the eq points set for bass, as well as with lower gain. Only marked with script chandler logo on the front, no bk butler. Bottom row left to right a bk butler 911 tube driver reissue from 2007, a 911 reissue with bias knob on back from 2008, a 901 real tube from 1987, an original 911 tube driver from 1994, and a 903 smooth pick pedal from 1997. I ran the original one through my friedman be in be mode with master set to around 1011 and gain around 78 through a marshall 4x12 with stock quad of heritage. Bk butler 4knob tube driver thoughts read 643 times 0 members and 1 guest are viewing this topic. Overall in great shape considering the age of the pedal. Also i think the 4 knob plugs into the wall 120v and the three knob i think runs off of 9v.

Bk butler heres a good clip featuring tube driver on youtube. Butler driver for sale collectible pocketwatch shop. Need help, bk butler tube driver discussion in the effect effect started by willeycaster000, jan 31, 2016. Hi bk, i got the tube driver with bias last week and was too busy to test it out. And i would definitely love to see it as a stomp model in the kpa. Buy with complete confidence directly from bk please check my 100% positive feedback. I have a 4 knob bk tube driver with bias control that i bought is new condition. A pair of adjustable bias mosfet gain stages take the place of the 12ax7 vacuum tube, otherwise the circuit is true to the original schematic. The bias dials in everything from creamy to nasty theres a huge variance that ill have to find my sweet spots depending on which amp and which guitar i am using. To me, the bk butler tube driver is one of the best around both for leads, taming a muff and for a clean volume boost that adds some bite. Just let me know if you want to upgrade when you order.

Butler tube driver 5knob w bias control youtube eric johnson interview guitars amp effects on up close album part 3 of 3 duration. Bk butler tube driver 5 knob bias knob version ebay. Bk butler tube driver with bias knob the gear page. The stomp box world has much more variety than what the kpa has in store when it comes to distortions and overdrives. Tis is the only handmade and authentic tube driver which i personally designed in 1983. I run 12au7s in all of them except the baby, they just sound smoother throughout the gain knob. I was looking around last night and saw that bk butler is making the real deal tube drivers, and they are on sale right now. Compatible with all electric guitars and amplifiers. Tube driver original by bk butler with bias control. The first was the four knob version by bk himself off ebay and then i bought a 5 knob version with bias tube also direct from bk. There is clearly a sweet spot on the tube bias knob where it sounds right. Voodoo lab pedal switcher and commander demo 1 youll get a shipping notice and tracking number emailed upon shipment.