They were housed in a blue metal box with 3 knobs and a 6AV6 or 12AV6 tube inside. He first marketed and sold them publicly in 1979, under the Butronics brand.

The positive response led Butler to further reduce and simplify the circuit, making an early version of his Tube Driver pedal for friends around 1975.Īfter getting some practical work experience in electronics working for Carvin amplification, Butler refined the Tube Driver even more. He mounted the circuit in a Radio Shack enclosure and let a few local guitarists try it out. Butler wanted to overdrive his keyboard by modifying the tube amplification circuit of an old stereo record player. Inspired by the Hammond organ sound of the band Deep Purple in the 1970s, the genesis of the Tube Driver happened when Brent K. It became a very popular pedal among guitarists for the next 35 years, and onwards. The Tube Driver was one of the first tube overdrives to enter the effects pedal market in the late 1970s. Last update August 2020įor the main Tube Driver article CLICK HEREįor the David Gilmour Tube Driver article CLICK HERE The sensor measures this change without any mechanical contact to the button and the information is send via a micro-controller to a gold-plated relay, which then does the actual audio signal switching.Article written in 2015. if it is pressed downwards, the position of the magnet will also change. Inside the button a magnet is integrated which position is measured by a sensor on the circuit board. Like all Vahlbruch pedals, the Kaluna pedal is equipped with their unique Magnetic Transducer Button = 'MagTraB' switching technology: The Vahlbruch KALUNA tube pedal definitely sounds different compared to solid state pedals and with its great clarity it will never mask the natural sound of your guitar and amplifier. The post tube, three band tone controls are extremely responsive, which is perfect for tailoring your tone to your specific gear and sound. Every musical nuance generated from your picking attack is exactly reproduced. The KALUNA's unique circuit bears extraordinary touch sensitivity. The gain characteristics from the KALUNA are organic and three dimensional, delivering mild breakup to creamy saturation.

The KALUNA is a super versatile, intuitive drive pedal with an extremely open sound that's transparent with great dynamics. Operating at 250 volts, the dual triode tube circuit is powered by your standard 9V power supply, producing this very particular sweet harmonic content, overdrive clarity, fast pick attack response and complex compression, that we all love from cranked tube amps.

The Valbruch KALUNA is a new and completely original design featuring an ECC83/12AX7 tube that is 100% pure analog tone.

Real tube driver pedal