Catalinbread Naga Viper MKII Treble Boost Pedal.

Description

The Naga Viper MKII is an improved version of the original Naga Viper, which was designed taking on the concept of the famous Dallas Rangemaster and improving many aspects of it to be used with today`s gear so you can drive it hard!
Key Features

Attenuator Control This control lets you dial in the exact amount of boost, and tame the incoming signal down to lower volumes, which gives the Naga Viper more room to breathe, to help shape truly legendary tone.
Improved Transistor Now players of all different styles of music can reap the benefits of the Naga Viper!
Versatility The Naga Viper MKII is designed to be used to push all different types of todays gear, while giving that authentic tone that the legendary Rangemaster delivered.

The Pioneering of the Dallas Rangemaster, the Treble Booster, and now the Naga Viper MKII
Brian May, Eric Clapton, Tony Iommi, and others pioneered the use of the Treble Booster, more specifically the Dallas Rangemaster. One thing that made this circuit such an anomaly in effects canon was its lack of foot control; the Rangemaster was an amp-top device with a teeny-tiny toggle switch that was an absolute pain to disengage mid-riff.
All of these players found that the Rangemaster came to life when it fed an already cranked amp, and indeed, the sound of Rangemaster-into-redlined-amp is instantly recognizable to its devotees.
The newest version of the Naga Viper now has an added attenuator control. This control acts like a level control for everything in front of the Naga Viper, letting you shave some heat from the incoming signal before it runs through the proverbial gears of the booster. This leads to less saturation and undesirable effects and more treble-boosting goodness going into your amp.
Controls

HEAT: You can think of this as the Naga Vipers gain knob. When turned down, you get that classic treble booster response which gives a slightly dirty boost, and rolling this control up intensifies the grit until its a drive unit unto itself.
BOOST: This sets the output level of the Naga Viper. According to the secretive pedal gods, the classic Rangemaster design is dependent on a certain value in this position explore for yourself!
RANGE: This controls the amount of bass frequencies let into the booster. Historically, the input and output capacitors of the treble booster are tiny, which lets in very few bass frequencies and less overall gain. You can find this setting with the knob maxed. As you roll this control down, more and more bass are let into the circuit and the range is thus increased.
ATTN (attenuate) The treble booster is a simple, straightforward circuit; it boosts what you give it to boost. The originals were designed to run as a guitarists only effect, and as a result, they dont take other gain devices as well as they could. This control lets you tame the incoming signal down to a lower volume, which gives the circuit a little room to breathe.

Power
You can use a variety of power sources to power your Naga Viper. It supports standard DC power supplies from 9 to 18 volts or a 9V battery.