Then i engrave my signature on the bottom of the case. Boss cs2 compressor 1980s bkbchandler tube driver tc nova delay into a reeves custom 50. The tone feels very natural and cascading like a normal gain stage of a tube amp. I was away to stick in an order for some new 12ax7s to replace the crappy ones that are in my amp right now, would it be worthwhile to replace the 12au7s aswell, or do they not affect the sound as much. Plenty of punch in the upper mids and tight bass make this tube sound at home in guitar amps and the finest hifi systems alike. I have a wavelength napoleon power amps that use this similar tube and have found that this is a great way to.
Arizona tube supply audio and radio tubes for sale. Known the world over for creating the eric johnson violin tone and as one of two main pedals used by david gilmour. The a designation is more for application purposes, designed to be used in a series heater circuit of tvs, radios and other older electronics. The use of this valve will give more headroom and clarity and lower the gain on a over distorted valve amp. There is some tonal variation between these early models, and this is a great sounding example. It belongs to a large family of dual triode vacuum tubes which share the same pinout retma 9a. It will be fun to compare with the 3 and 5 knobs and it wasnt that expensive. The electroharmonix 12au7a ecc82 is a brand new preamp tube that is made in russia.
Chandler tubedriver pedal od effects clean overdrive 12ax7. If you just replace a tube with a different type, it might fail soon. Real tube, try changing the stock 12ax7 tube a lower gain tube like a 12au7 or 12at7. Each unit is hand built to my specs and i personally check out each tube driver to perfection.
Electronic vintage tube car radio reducer 12 volts to 6 volts 7 amps cars only. Chandler usa lipstick tube pickups 3 gold with harness. In response, chandler created their own unauthorized tube driver. At first i thought that its just rebranded rca, but internal structure on rca 12au7s is fairly different. I have an early chandler tube driver, ac powered version that ive owned for about 16 years. Note that the instructions above dont work for a 1990s era bkb chandler tube driver since the volume and tone post positions dont match the later version, so more tweaking is required. Still, id like to have a spare on hand thats not a chinese tube. Chandler tube driver rack mount real tube overdriveboost. In fact, there is only one tube driver bk butler built the original tube driver, under his brand tubeworks. Nov 18, 2011 whats the status on new old stock american 12by7a driver tubes. Like the 12ax7, this is not a hassle since virtually all hifi tube amps are of the parallel filament design. Besides, the bk butler tube driver could be a good pedal to boost a rams head.
You were making a limited run of 6 this year, any plans to mass produce them in the future. It is in used condition with some cosmetic wear from use. Discussion in the stomp box started by golem, jan 10, 2018. Chandler dynamo tube preamp for musical instruments. Tube 12au7a or rohre 12au7a id5285, double triode, noval, b9a and universal shown. I found the schematic for it but dont know how to read itlolim trying to find what eq settings to use to come close to the pedal. The 12au7 the 12au7 is the last tube on this list and it has the lowest gain, with an amplification factor of 20. The tube driver doesnt really use the tubes for gain.
Im not really sure what the tube is doing but i know from putting a 12au7 in mine that the gain didnt really change much at all. Butler started making the 4 knob tube drivers again as a production model under the tube works brand around 199394. The reccomended 12ax7 s dissipation is 1 watt and the 12au7 is higher at 3 watts. 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. I am getting the real tube and another blue tube which are both on the way.
I replaced the 12ax7 with a 12au7 jj electronic for an overall. And there is the behringer tube vt999 that is based on both. Is a 12au7 a safe replacement for a 12ax7 audiogon. This is cbshytron 12au7 black plates its completely different from the legendary 5814 in sound and in internal structure. The 5814a is a militaryindustrial grade 12au7 with low noise and highreliability spec. Chandler tube driver rack gearslutz pro audio community. It is a premium quality 12au7 tube built to match the performance of the militaryindustrial original ge 6189 tube. Ive only ever heard one, and it sounded good but i had nothing to ab it against. The tube is from 1953 with silk screen in a fantastic shape. The chandler tube driver is a real tube based overdrive guitar pedal. Difference between 12au7 and 12au7a audiogon discussion forum. Nov 06, 2007 steve, could you tell us your ranking of the 12au7s. Hp notebook 15ba007au software and driver downloads hp.
Some used 4knob tube drivers marked chandler are not the original design by bk butler. This is a unique and classic tube driven style overdrive stomp box. Utilization the general configuration of the tube driver is really easy to follow, and it is easy to get a good sound from this. Hi there, ive now listened and analyzed countless 12au7s and its equivalents and thought id give my opinion on my current favorites. Mar 30, 2012 have you seen how much your original bk butler chandler tube driver units are getting on ebay. The chandler tube driver in davidas rig from 19932006 has a slightly. 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. If you want to redesign the circuit, you should have chosen a different amp in the first place.
This early 1960s rca 12au7a tube has ribbed gray plates, a side getter, and a clear top. Use of these parameters shall be entirely at the users own risk. For sale is a vintage, original 1986 bk butler chandler tube driver tube driven overdrive effects pedal. At some point early on i was convinced by a small guitar shop owner who sold the smaller, 3 knob tube works version that i needed to replace the tube with something lower gain than the stock 12ax7. This pedal works perfectly and is in used condition with some cosmetic wear from use. Cant say for sure theyll be the best for you, but most people i know whove tried them have stayed with them. To me 12au7ecc81 is the way to go with this pedals.
Unfollow chandler tube driver to stop getting updates on your ebay feed. Jun 22, 2006 i have a cayin ha1a and which uses 12ax7, 12au7 and two el84. Theres been much debate on what tube sounds the best, especially between the 12ax7 and the 12au7, but basically it comes down to personal. Chandler tube driver rack i know there is some controversy over the bk butler situation but that none withstanding the 1 up racks are reasonably rare to come by and have the famed bias control. Jul 06, 2003 i use 12au7s in my preamp and ive done some tube rolling. Other then a huge difference in gain which is desirable the only difference is in heat dissipation. What is the difference between the 12ax7, 12at7, and 12au7. These are real high gain pedals and i am going to find a way to slow them down a little with a 12au7 change and whatever else. The old version of ibanez tube king is based on the chandler, and is great too. Steve, could you tell us your ranking of the 12au7s steve. Chandler tube driver schematic help diy do it yourself. Chandler tube driver rackmount tube works 902 real tube rackmount tube works 9 tube driver rackmount tube works 922 real tube ii rackmount. This is a classic overdrive pedal used by professionals such as by eric johnson, joe satriani, david gilmour and many others.
And congratulations to alex for designing such a good preamp which is probably the best value for money ever. Chandler industries tube driver overdrive pedal of the day. Various tube brands have a special house sound for the most part. Works best with an already slightly breaking up amp to my ears. Low microphonics and excellent linearity offer a musical and harmonic soundstage, making this 12au7 tube equal to the original and a cut above. The bias control allows you to adjust the tube characteristics over a wide range. If it says tube driver on it as a model name, its one way or the other supposed to be under the auspices of or royalties to one mr. 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. Have you seen how much your original bk butler chandler tube driver units are getting on ebay. Butler designed tube driver circuit with some component differences.
It is made in the usa has a 14 inch input and output and i believe is has a 12ax7 type tube. The ecc82 valve also known as a 12au7 is a low gain preamp valve used in guitar amps and hifi ampliers. Nov 28, 2009 many valve amps made today are replications of pre 1950 technology when valve amp designs and performance was restricted by limited knowledge and component technology. Hi yes i have scored a chandler tube driver 4 knobs now i almost have the collection complete, looking for the blue one. Are there still a lot of american ge, rca driver tubes and the like around. This is a suitable replacement for any 5847404a tube type. The 12au7 is the last tube on this list and it has the lowest gain, with an amplification factor of 20. Does anyone has experience with this tube driver, i know david gilmour and ej uses this. Im trying to setup a tube driver vst to come close to the chandler pedal. Steve, could you tell us your ranking of the 12au7s. This is the first of two videos looking at the effect of swapping tubes in valve overdrive. Bk butler tube driver 12au7 tube rolling the gear page. The a is a slightly more rugged construction which results in lower output microphonics. David gilmour of pink floyd was seen using two 1980s tube drivers in the studio and on tour in.
Tube works and chandler tube driver s have been on the market at different times, and in different versions. Download the latest drivers, firmware, and software for your hp notebook 15ba007au. Chandler copied the bk butler design there was never a chandler tube driver. It was really earopening to listen to so many rare 12au7s. Shop our extensive group of tube 7 in stock today online. And those who loves tube rolling would definitely find it a heavensent. Likewise, expect the 12au7 to sound a bit dull at first before it breaks in and.
See who uses bk butler tube driver, including david gilmour, eric johnson, andy timmons and 3 others. Ultra rare 1985 bk butler tube driver patent pending 1 of 1st 50. Tubeworks was later sold to jeff genzler, who started his own company genzbenz. Welcome to arizona tube supply where we have hard to find vacuum tubes for your audio gear, guitar amp, antique radios and vacuum tube ham radio equipment boatanchors.
Unfollow butler tube driver to stop getting updates on your ebay feed. The thing with that pedal is that the name is a little deceiving i love it though, dont get me wrong the tube isnt actually what is creating the overdrive in that pedal the td has an opamp circuit which does that. A 12ay7 will drop the gain by 55% and a 12au7 can pull down the gain by. These specifications are provided asis, with no warranty of any kind. One of the wonderful things i love about using tube gear. The only difference between the 12au7 and the 12au7a is the a version can be used in series string filament circuits due to its controlled warmup cathode. Discussion in audio hardware started by nevillekapadia, nov 6. Im not technical,so i ask what is the downside of using a 3 watt dissipating tube in place of a 1 watt tube. Gibson les paul traditional marshall jcm2000 dsl401 chandler tube driver. This schematic is for the chandler wall mart version the one that doesnt say bk.
Unfollow 12au7 tube to stop getting updates on your ebay feed. Signal chain paul reed smith custom 22 brazilian ltd chandler tube driver orange dual terror mesa 4x12 rectifier slant akg c414 xlii api 512c a. Just now i was going back to my ts9 this one turns up. Choose from tubes that test as premium new precisely matched sections, as new, or good. The 12au7 and its variants are a miniature ninepin b9a base mediumgain dual triode vacuum tube. Its like changing the types of tubes anywhere from a weak 12au7 to a blistering.
My 830s is still on its original japanese clone tube. By using modern components and innovative solidstate driver circuitry we are now able to make a valve amplifier that is considerably superior to the valve amps of the past. Signal chain paul reed smith custom 22 brazilian ltd chandler tube driver orange dual terror mesa 4x12 rectifier slant akg c414. Mazda 6189 silver plates 3mica and 50s valvo long plate angled getter. With the real tube deal i am getting a pair of rocktron silver dragon tube pedals. Tube driver placed before the muff in signal chain. I did a quick tube swap video with the tube driver last year. But at the same, it became very difficult, or almost impossible, to. There are a lot of versions of this pedal and its variants, but if you search the web, theres tons of good info to help identify the good ones. Tonewise, i would perhaps place the chandler somewhere between a tube screamer and a bk tube driver. On the new tube drivers, both david gilmour and eric johnson use ei yugoslavia. Tubes free delivery possible on eligible purchases. This is hps official website that will help automatically detect and download the correct drivers free of cost for your hp computing and printing products for windows and mac operating system.
There is no chandler tube driver never was a chandler tube driver. Westinghouse, black plates, square halo on top 2 emissions87, life testgood, grid leakage0, tv7du9046 min. Difference between 12au7 and 12au7a audiogon discussion. I liked the amperex bugle boys a lot, but the the best tube i found by far was the amperex 7316 pq. The level and hi pots are scratchy as is common with these pedals. Rca, ge, and sylvania actually made most of these tubes, regardless of brand on the label. Tube works 910 tube driver 3 knobs tube works 911 tube driver 4 knobs b. The 12au7 can only be used in parallel filament circuits. About as close as you can get to the original chandler tube driver. For sale is a 1987 chandler bk butler tube driver tube driven overdrive effects pedal. This is used much less as a preamp tube because of the low gain, and more as a driver for the tube driven spring reverb. 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 reccomended tube for my phono section is a 12ax7. Butler and chandler tube driver pedals that have powered everything from david gilmours latemodel stadium sound to j masciss power jangle to eric johnsons violinlike tone.