Vox Cooltron CT07DO Duel Overdrive Pedal
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Double the drive with the Vox Duel Overdrive pedal.
With two overdrive circuits based on Vox's Big Ben Overdrive pedal, the Duel Overdrive provides footswitchable access to two sounds from a trunk full of classic and modern tones. With separate gain, volume and tone controls, you can set the pedal up with two totally independent overdrive sounds to compliment a clean-bypassed tone. To make it even more flexible, Vox added an assignable low-end bass boost function for fat-bottomed overdrive tones. Add the Duel Overdrive to your existing pedal setup and benefit from an unmistakably "real" valve overdrive.
A tube in a pedal? Pretty cool.
The COOLTRON series of effect pedals use a 12AU7 preamp-type tube at low voltage to deliver the kind of tone that, until now, would have been impossible to achieve in a battery-powered pedal.
Want to know how it all works?
Normally, tubes are used at high voltages and this restricts their use in battery-powered devices such as guitar effects pedals. Historically, attempts have been made to use tubes at low voltages in what has been dubbed "starvation" mode, but these circuits don't allow the tube to function in an acceptable manner. The tube simply cannot be biased to a satisfactory operating condition. Plus, the necessary heater (filament) current is too high to deliver acceptable battery life. Imagine how annoying it would be to have to change batteries every ten minutes during a gig!
Here's what makes the COOLTRON system tick. The COOLTRON circuit basically operates by using two very special signal paths. The first is the "servo circuit," which provides the right conditions between the plate of the tube and the grid. This achieves controllable, stable parameters for the tube and provides the correct operating conditions for the tube to function as it would if run at a higher voltage. The second circuit is a patented power supply that provides a low voltage, low current supply to the heater elements in the tube. Since the tube is now running at such a reduced supply level, the anode current is much smaller than normal. This means that the amount of heat required at the cathode to achieve sufficient cathode current emission is much smaller — hence the ability to run the heaters at a lower level and for COOLTRON pedals to run for 16 hours on 4 x AA batteries!
The COOLTRON system provides true tube sonic performance at very low voltage and at reduced heater current — ideal for inclusion into guitar effects pedals. COOLTRON guitar effects pedals offer valuable tube type sonic performance.
Tube tone from a stompbox! Order today.
Cooltron CT07DO Duel Overdrive Pedal Specifications:
- Input: 1 guitar input
- Output: 1 line output
- Controls: gain, tone, volume, bass boost
- Tube: 12AU7
- Power: 4 x AA batteries allows 16 hours of operation
- Dimensions: 6.63" W x 6.12" H x 2.52" D
- Options: 9V AC adapter
Reviews
Reviewed by 1 customer
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this is a great pedal you could do a gig all night with just ch 1! ch 2 with the boost will really nail the marshall sound and ch 1 is sweeeet blues heaven the tube really warms up even a solid state amp if you are looking for smooth overdrive with that tube sag check this out it rocks!
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