Bk butler tube driver bias controllers

So, i started hunting for some videos or any info on bias knob. Eric johnson and david gilmore couldnt get their sound without it. Hi andrea, i have the bk butler tube driver with bias mod as well, i use a nos yugo real tube tho 12ax7. All listings current page auction buy it now classified ads. Make offer bk butler tube works tube driver 12ax7 overdrive effect pedal valve 3 knob. Forgot to mention before, if you have a chandler wall mart tube driver you can easily convert it to a authentic tube driver by rebuilding the tone stack section. Fat llama is the trusted marketplace for buying, selling and renting. The tube driver is a holy grail type pedal, but many people, especially younger players, have never heard of it. This is the only handmade and authentic tube driver. It spins all the way around and pulls out some too.

As you reduce the bias, you get less gain but also a spittier sound and a much looser bottom end. Used bk butler tube works tube driver, vintage tube overdrive pedal from the 1980s. The ponly controller has the advantage of having only one adjustable or tuning parameter, kc, that defines how active or aggressive the co will move in response to changes in controller error, et. Wtt fulltone octafuzz, fulltone supatrem, bk butler tube driver w bias, morley distortionwahvolume wttf ocd micronano pog strymon flint or throw out some offers canada as title says. The bk butler tube driver is the quintessential overdrivebooster pedal. Order here and get a real bk butler handmade tube driver.

Vintage 1990s bk butler tube driver works original 910 circuit valve 12ax7 rare from usd 199. My solution was to install a 5th control that controls the tube cathode current and enables him to dial in the tube. Bk butler 911 tube driver beigeblack for sale online ebay. Bk butler tube driver with bias knob, get that awesome violin tone lead best tube driver ive ever played through the delivery man dropped off my brand new bk butler tube driver about 4 hours ago 11 am and im still going, 3 pm. 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. A 911 tube driver reissue made in 2007 on left and a 2008 model with the optional bias pot modification added to the back 911 tube driver bk butler reissue 4 knobs, tan with black graphics, first made in 2005. Bk butler tube driver 911 with bias mod from usd 5. Hey sho, ive owned several tube drivers over the past 12 years.

You can hear smooth singing sustain prs santana md,mercury magnetics,tran and choke mod, trex delay into a fender vibro. According to mr butlers website, the bias knob is supposed to change the potential on the tube and can make it sound like a range of gain options between 12au7 very low gain to 12at7 high gain. It depends on what tone youre looking for but it has a very narrow clean response and it can be a bit bassy and have that woofy boomy sound as well. This is the big daddy of tube overdrive pedals the classic tube driver from b. The real deal tube driver from the original designer. Compatible with all electric guitars and amplifiers. The bias control allows you to adjust the tube characteristics over a wide range. Bk butler tube driver 910 schematicpot value telecaster. It is unkown which circuit was inside the 1980s tube driver, as butler stated shipped david four 911 td circuits in 2005, requested to replace the circuits in his old tube drivers. 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 vs ibanez ts808 tube screamer duration. For a given value of et in the ponly algorithm above, if kc is small, then the amount added to co bias is small and the controller response. Tube driver original by bk butler with bias control. Each one is hand made and checked out carefully by bk himself.

This item tube driver original by bk butler with bias control. Bk butler tube driver new model with bias knob jam pedals delay llama. Bk butler tube driver with bias knob the gear page. A fenderstyle passive tone circuit follows, with bass and treble controls, and a.

Bk butler tube driver guitar pedal overdrive used by dave gilmour, eric. Tube driver new direct from bk butler with bias covid. This is a demo of the much hailed and much sought butler tube driver with added bias knob. Overall in great shape considering the age of the pedal. Heres your chance to own this legendary holy grail of overdrive pedals. I found an old 3 knob version in japan for cheap so i bought it and emailed bk about its history. Bk butler tube driver page 1 joes guitars, amps and gear joe bonamassa forum the official forum for all things joe bonamassa, guitars and blues music. Dean markley overlord to b k butler tube driver so, ive got one of these and ive got to admit i agree with the advert its ugly as sin but it does sure cook an amp nicely, but it could be better. I am on again off again with my bk butler tube driver w bias mod. Bk butler tube driver 5knob demo original bias mod vs diy bias. When chandler copied the bk butler design they totally messed up the tone stack section all schematics to compare the different versions are here on. This is the version with the optional 5th knob a bias control, to change how the tube behaves. Beware of inferior clones and used worn out pedals. Need help, bk butler tube driver fender stratocaster.

The bk butler 911 tube driver has been one of those items for me. Make offer bk butler tube driver 5 knob bias version. I found this one at guitar resurrection in austin texas. This is a favourite of eric johnson, david gilmour, joe. In the professional tube audio arena for more than 25 years, bk counts among his clients players and groups like eric clapton, zztops billy gibbons, pink floyd, elton john, paul mccartney and 100s of others. What do you guys know about the bk butler real tube driver. Not sure why it does not say 12ax7 instead of 12at7 on the website for bias turned all the way up. It can be a little harsh and raspy and i assume that is. Tube driver with bias control original design by bk butler. Find great deals on ebay for bk butler tube driver and bk butler tube driver bias.

Allows me to go from dirty rhythm to soaring lead with a few knob twists. I got an upgrade offer by mr butler to add a bias knob on it. Heart of the tube driver is a real handselected 12ax7 tube by bk butler himself controls. Tube works valve distortion guitar bass keyboard pedal overdrive bk butler blue. The tube driver houses a preamp tube and it generates distortion by overdriving the tube rather than conventional pedal methods. You could build that one if you fancy, however, bajaman took apart a reissue b k butler tube driver and posted up his own project which is verified and working, and sounds great to boot it also includes an interesting bias mod which allows you alter the voltages seen on the tube s grid which will alter the character of the clipping. I definitely need to try a 12at7 or a 12au7 in mine. This pedal is legendary, used by eric johnson, kenny wayne. There are videos but nothing that shows you or elaborates the sound difference with bias turned up or down or in mid. Hi bk, i got the tube driver with bias last week and was too busy to test it out.

Upc 707470791581 buy td911bi tube driver original by bk butler with bias control 707470791581 learn about upc lookup, find upc. And finally in 2008, he began offering the bias modification again. Need help, bk butler tube driver discussion in the effect effect started by willeycaster000, jan 31, 2016. Pedals with separate ac power supplies or wall warts are not original and do not sound the same.

The 2006 bk model is delivered with a 12ax7 tube which is a bit too aggressive for my taste. Discussion in the effect effect started by jeepjones85, sep 10, 2011. His tube driver blue has also found its way into upscale car audio. A pair of adjustablebias mosfet gain stages take the place of the 12ax7 vacuum tube, otherwise the circuit is true to the original schematic. It no longer functions correctly to change the gain. The mosfet driver is based on the legendary bk butler tube driver. 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. Is the 10k trimpot for tube bias and if so could you use a 10k pot so it can be adjusted without opening up the pedal for adjustment if so what lugs go where. This is the ultimate bias model inspired by requests from eric johnson in 1985. It also works extremely well as a booster for the more demanding distortions like the big muff. Yup, just my opinion that the pedal i have the bk butler version is a little easier to maneuver with a 12au7. Its kind of like having a section of your amp right in a pedal. The standard negative voltage grid bias along with a negative 12 volts.

I will say the box didnt make me able to play like eric johnson but i finally got that violin tone ive been. Output level, eq hi and low, tube drive, and the effect. Heart of the tube driver is a real handselected 12ax7 tube by bk butler himself. I have a 4 knob bk tube driver with bias control that i bought is new condition. Bk butler tube driver page 1 joes guitars, amps and. Some used 4knob tube drivers marked chandler are not the original design by bk butler.