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The base of one of the two replaced knobs is broken off but still functions fine. Power supply looks to have had a repair.not by me. List your items fast and easy and manage your active items.ĮQ pots have a small amount of scratch when dialed.
#BK BUTLER TUBE DRIVER 3 KNOB FOR SALE FREE#
I'm sorry for the inconvienence Powered by The free listing tool. I don't have a way to arrange for a local pick-up of this item. Washington State Residents add Sales Tax. The item description is guaranteed to be accurate but all items are sold as-is unless otherwise stated. Will be well packed- Buyer pre-pays endprice + Shipping- 3 lbs or Medium Flat Rate Box USPS Priority- Payment must be received within 7 days of purchase.
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Pots are clean(not scratchy) Cord is undamaged. The prior owner had made some marks around the top knobs and by the back bias knob(see photos, the- bias + markings are in ink, I tried wiping it off with a little lighter fluid but it didn't come off so it may be permanent ink) The marks that were around a few of the knobs are light and I think I mostly got them off but a hint may remain) From a non-smoker. I bought this last summer locally on a whim(I mostly just make noise on a guitar) I don't know what the installed tube is. Pedal works with no issues and sounds great.
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more that allows you to set the bias for the tube. Butler has always made these stock with 12AX7 tubes, but owners typically experiment with tubes having different gain factors to tailor their tone.Vintage Original 5 Knob Tube Driver Real Overdrive BK Butler Guitar Effects Pedal Distortion There are 9 photos of the item below. It would seem that the tube itself would make very little difference to the sound, but it actually is an integral part of the sound, and different tubes or tube types will alter the sound in different ways. This is called a “starved plate” design, and you won’t see much tube glow, if any, if you look inside. The circuit only draws about 30mA and the tube is actually only running at 12v, a fraction of what these tubes run in a typical amplifier.
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It filters and colors the sound with the tube characteristics. That strong signal is fed into a vaccuum tube, which does not work to amplify the signal as it would in the pre amp stage of a typical amplifier. The hard clipping part of the distortion comes from the integrated circuit chip, or op-amp. Inside is a hybrid fuzz – pre amp circuit. The standard 4 knob version features a LEVEL (volume control), HI (treble), LO (bass), and DRIVE control. The Tube Driver looks like something from the bridge of the Enterprise from the 1960s Star Trek television show. The TD has a very unique voice that I have never heard another overdrive replicate. It can be difficult dial in a tone setting that hits the sweet spot, and some people find it finicky and hard to get along with due to some design issues, but in the right setup, with the right amp, nothing sounds quite like it. It is not very versatile sounding through some amps, but exceptionally good with others. At low drive it can deliver a Fenderish smooth gain boost or a bluesy overdrive. At high gain, it is very reminiscent of the lead crunch tone of a Marshall JCM800 amplifier. It generates anything from a smooth, light overdrive tone, to a classic rock-style heavy distortion. It has evolved over the years and there are many versions. Butler (Brent Butler).Īround 1978 Butler designed and began making an early version of the Tube Driver, one of the first tube overdrive pedals. It was designed and built by audio electronics engineer B.K. BUTLER REAL TUBE OVERDRIVE – The Tube Driver is a booster/overdrive 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.