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Jester does basically the same, but about 4 times better. If you want Sloe Gin in a box, get a Jester. If anyone wants mine, email me this is one of the staple Gilmour pedals, and it's still a very good pedal, yet I think they're crap compared to the Kingsley Jester, which is in another league. The core of the pedal is a hand-selected 12AX7 tube - which gives you a lovely sort of fuzz-drive 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. Congrats on the BK Butler Kev, it's one I'll never sell! Butler Tube Driver famously used by David Gilmour, Eric Johnson, Billy Gibbons and Joe Satriani to name a few. I feel that it's easier to get the "violin" tone with that particular tube. The 12AU7 also tames a little of the spikey-ness of the JJ 12AX7. There is so much gain in these that you actually get a much more musical and usable range with the lower gain tube. Get a feel for the pedal with that tube but IMO I heard a DRAMATIC improvement in mine with a NOS JAN 12AU7. The tube inside appears to be a JJ ECC83 - is this a 12AX7? Input Sensitivity: 1.5V for 150 Watts into 8 Ohmsġ200 Watts 8 Ohms - 10A (120VAC), 5A (230VAC)ġ800 Watts 4 Ohms - 15A (120VAC), 8A (230VAC)ĭimensions: 17"W x 16"D x 8.It arrived today!! I am looking at it now in my office - can't wait to get home and crank it up. Independent AC Secondaries and RectifiersĭC fault / Short Circuit Protection CircuitryĬustom-made Hard Gold Plated Eutetic Brass RCA connectorsĬustom-made Hard Gold Plated Eutetic Brass 5-way Binding Posts Modular power channels with a seperate massive, oversized heatsink for each channel Load Adaptive Vacuum Tube Driven output circuitry Hand selected/matched 6SL7GT Twin Triode tubesįully regulated Tube Heaters with Delayed Soft Start Literally, you get the reliable, efficient power capability of solid-state with all the greatly extended dynamics, warmth and musicality of the highest quality vacuum tube design available today. The result: A superlative marriage of tube and solid-state technology without the limitations of either. This novel design allows the tubes to safely produce authentic power vacuum tube dynamic characteristics hundreds of times greater than their original design capabilities.Ĭomparable in concept to precision racecar active power steering, BK Butler allows the tubes to "power steer" the audio output signal directly into your speakers. 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.
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This also completely eliminates one of the most inefficient and non-musical components in a typical tube power amplifier: the Output Transformer.
![bk butler tube driver amp bk butler tube driver amp](https://static.wixstatic.com/media/54afba_ac4ae5817330476fbe1f3f309d2dc0bf~mv2.jpg)
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.
#Bk butler tube driver amp pro#
With painstaking efforts and great attention to detail, veteran Pro Music Industry designer BK Butler has skillfully balanced the sonic response, load and transfer characteristics of individually selected twin triode vacuum tubes to operate under optimum conditions. " Edison Effect", or the essence of pure Thermionic Vacuum Tube Emissions has been fully utilized to yield very low Total Harmonic Distortion and produce "all-tube" type musical response characteristics in a home theater amplifier. TDB 5150 T H E R M I O N I C Vacuum Tube Driven 5-Channel Power Amplifierįor the first time in the history of tube amplifier design, the original