Tube driver butler schematic of power

El846bq5 pushpull power amplifier few tube amplifiers sound as sweet as two triodeconnected el84s in pushpull. I got a bk butler tube driver several weeks ago and either it just doesnt work with my equipment or ive got a bum one, i was wondering if you guys could help me decide. Conversely, if you plug a tube driver with a 220240v transformer meant for the. On the new ri version it increased from 2,2k to 22k. You say that your amp operates in a1 and that wont happen. The real tube includes a mid range knob, allowing for a wider range of tones to be dialed in. I dont have any 7660s but i plan on building a bipolar power supply based on whats on the schematic to rule the ps out. The tube driver is a somewhat famous pedal, id guess it to be the most wellknown tubebased distortion pedal.

If you want a 9vdc powered version you can buy a tiny chinese dcdc converter on ebay, power the tube from a 7806 or string of diodes and. This embedded tube basically acts as a token, apparently intending tonal coloration but without real power amplification. This is the big daddy of tube overdrive pedals the classic tube driver from b. Bk butler tube driver 1989 guitar pedals, electronics. Td752 td752es tube driver amps front panel features left to right tube drive switch selects either tube channel up, or clean channel down. The real tube overdrive is a bk butler guitar pedal manufactured by tube works back in the 70s and 80s. Davids 80s chandlerbutler and the current bk buter tube driver, and. Please practice handwashing and social distancing, and check out our resources for adapting to these times.

I will never sell my tube driver, and really if power wasnt an issue, id really like to. Bk butler is the pioneer of lowvoltage designs for. Bk butler s original hand made tube driver guitar pedal used by. This amp was made in denver in the 90s and designed by bk butlerof the tube driver pedal fame the speaker is rated for 75 watts and was custom made for tube driver by eminence. The persuader is a tube preamp pedal built around a 12ax7 dualtriode tube to go from clean, warm tone to smooth, real tube overdrive. I found this tube works td752 in a pawn shop on the way. Secrets revealedwhats inside this bk butler tube driver real tube overdrive. The chandler tube driver is a real tube based overdrive guitar pedal. To my ears, the tube driver has more harmonic content and is unpredictable in a good way. But looks like it originally was a schematic of the tube driver from 1986 done by mr. About the bk butler real tube overdrive guitar pedal. 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. View and download butler tube driver blue 2150 owners information online.

Footswitch jack insertion rear panel cancels the operation of this switch. It also affects the overall gain of the power amp, and the frequency compensation provided by components within the feedback loop one or more caps or resistors to help keep the power amp stable. Find great deals on ebay for butler tube driver and butler tube driver car amp. This guitar preamp circuit for over drive before to the power amplifier or headphones. It runs the 12ax7 stages at very low plate voltageabout 9 volts. The real tube overdrive with a regulated power supply and simplified tone control. Ive looked to compile the best and most reliable for this post. 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. Im using a boss blues driver running it into a digitech compressor into a electric mistress flanger. It operates from a 9volt power source and has a truebypass switching. 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.

The b k butler tube driver has been used by several of rock guitars greats david gilmour and eric johnson to name just two. Butler tube driver blue 2150 owners information pdf. If you know of a tube pedal not listed here, please let me know. It will draw 4x the power it needs, causing it to overheat and damage the circuit. The colorsound power boost and tube driver are very similar, which. Its based on a reference design found in the datasheet of the ltc1054. It was 9v powered, like most pedals, making it more marketable to a larger crowd. I purchased it back in 1994 at guitar center in san bernardino, ca. Pedals with separate ac power supplies or wall warts are not original and do not. 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 thread.

I got this from tube works as a schematic of their 911 pedal. Cathodefollowerbased output stages are raresurprisingly rare. Compatible with all electric guitars and amplifiers. A problem exists in all vacuum tube power amplifiers when the input signal reaches the point where the driver tube attempts to drive the grid of the output tube positive. The most significant differences compared to the new ri edition are. There are many schematics out there as well as a wealth of pcb projects. There is clipping on the power rail obviously, as the aop cant for sure handle 100 volts or more. Bk butlers tube driver blue technology places the triodes exactly where they should be. Dc coupled through the output power devices to the speakers. Previous designs generally employed vacuum tubes in impedanceisolated preamp or predriver stages. Lower plate voltages insure greatly extended tube life.

Several people reported that the tone stack reacted different on the new version vs. Heres the tube driver made famous by david gilmour. Colorsound power boost my favourite david gilmour tones. The curse as popular notions go, the butler audio 2250 carries a certain stigma if not outright blood curse. Tubes typically will not have to be replaced for 23 years under normal conditions. Utilization the general configuration of the tube driver is really easy to follow, and it is easy to get a good sound from this. Some used 4knob tube drivers marked chandler are not the original design by bk butler. Tube driver practice combo 2 pages amplifier tube works td752 owners manual. It is made in the usa has a 14 inch input and output and i believe is has a 12ax7 type tube. I kept the power section from john ks version of the blue tube.

Butler designed tube driver circuit with some component differences. I will never sell my tube driver, and really if power wasnt an issue, id really like to have two on my board. The image above shows my recently purchased real tube pedal case disassembled, because in the video below im about to show you how to clean it. Summary of contents for butler tube driver blue 2150. I actually got it used on evilbay should have just bought a new one direct from bk. I found this tube works td752 in a pawn shop on the way to a gig 22 years ago, and it is still my main amp to this day. Chandler tube driver vs tube works 911 telecaster guitar. Bk butler tube works tube driver early 3 knob modeloriginal yugoslavian 12ax7 tube includednever thought this day would come but i just dont use this pedal at all anymore. Therefore, the tubes are positioned to naturally and actively respond to the dynamic speaker load. The tdb 2250 is the 2channel version of the companys own 5channel tdb 5150. If youre wondering how these things sound heres a demo for you. Johnson uses it in the lead circuit of his signal chain. Ive had both a dover drive for two weeks and a bk butler tube driver for about a week now. Butler started making the 4 knob tube drivers again as a production model under the tube works brand around 199394.

Td752 tube driver amp, hybrid combo guitar amp from tube works. Butler tube driver famously used by david gilmour, eric johnson, billy gibbons and joe satriani to name a few. Tube driver bias with yugoslavia 12ax7 and tube driver chandler sylvania jan 12au7. The tube driver is a legendary pedal used by players like eric.

I was at first impressed with dover drive, but decided to buy a tube driver to compare directly. I only used a 12ax7 in this because i wanted to be able to swap more easily. The project is designed around the 12ax7 tube, but you can use every pin compatible tube to change the drives characteristics andor gain. Im referring directly to the rt901 schematic on the revolutiondeux site in the dean markley overlord to b k butler tube driver article, which i am assuming is what this was based on. Mozesz usunac ta wiadomosc i otrzymac wiele dodatkowych mozliwosci, ulepszajac hosting do pro lub vip za jedyne 5. Unlike typical effect pedals, the tube driver includes a built in power cord, as it. The circuit only draws about 30ma and the tube is actually only running at 12v. It uses a 12ax7 which is pushed by a dual opamp followed by a fenderstyle tone stack. It also has a switchnot foot switchable to combine the clean and overdrive channels. I dont play guitar much but my friend has tried it out and was able to get very eric johnson. In the direct comparison, the tube driver is far superior in tonal quality to the dover drive imho. It also has an optically controlled circuit with a vactrol.

Maybe its a correct schematic for the pedal being analysed here. Then someone modified it to match with the 911 pedal. Baja real tube driver 12v dc online stripboard layout. What other items do customers buy after viewing this item. Tube driver blue 2150 car amplifier pdf manual download.

My tube head repair guy tells me this kmd head has a higher plate voltage than any other he has ever. As promised here is the schematic of the early tube driver traced from the guts posted on this thread. The tube glowing means youve got the heater up and running pins 4 and 5, and technically also 9,but were not using that. The tdx is more refined, controllable, and has much more headroom. In other words, add a power transformer and the ps4 pcb makes the basis of a fine tubecircuit power supply, say a tube linestage amplifier or headphone amplifier or crossover or, even, a small power amplifier. Tube driver original by bk butler with bias control. The first, original, one was the bk butlerchandler tube driver. See who uses bk butler tube driver, including david gilmour, eric johnson, andy. The layout included is for an offboard tube socket not mounted on the pcb. Heart of the tube driver is a real handselected 12ax7 tube by bk butler himself. 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. Pedals with separate ac power supplies or wall warts are not original and do not sound the same.