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 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.
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. more that allows you to set the bias for the tube. This novel design allows the tubes to safely produce authentic power vacuum tube dynamic characteristics hundreds of times greater than their original design capabilities.Vintage Original 5 Knob Tube Driver Real Overdrive BK Butler Guitar Effects Pedal Distortion There are 9 photos of the item below. Without the phase shift and induction generation caused by hundreds of turns of wire and massive core iron to overcome, BK Butler's newly patented current multiplying DC coupled circuitry allows the 6SL7GT output driver tubes to directly operate into the constant ratio-reduced speaker load.
This also completely eliminates one of the most inefficient and non-musical components in a typical tube power amplifier: the Output Transformer. Therefore, the tubes are positioned to naturally and actively respond to the dynamic speaker load. BK Butler's 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 impedance-isolated preamp or pre-driver stages. Pics are from Butler website.ĭescription of amplifier design from the Butler website: Numerous reviews available online of the Butler 2, 3 and 5 channel implementations of this unique topography.Īmp is already boxed up and will ship from Chicago as that's where it was sent for reconditioning. It is quite powerful, producing 5 x 150 Watts RMS per channel 8 ohms or 225 Watts RMS per channel 4 ohms. This is the most "listenable" amp I have ever owned and the sound was not inaccurate, just very well balanced and controlled. Ahead of listing, this amplifier has been inspected internally and externally by an independent audio electrical engineer and bench tested to ensure it meets manufacturing specification.
#BK BUTLER TUBE DRIVER FOR SALE FULL SIZE#
It was my favorite amplifier for many years, but a new set of full size planar speakers drove me to a dedicate two channel setup. I have had this amp in storage for a few years and decided it was time to let it go. Recently re-conditioned Butler 5 channel hybrid tube amp.
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