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GUITAR TONE IS ROCKET SCIENCE!—Vintage, high voltage, vacuum tube technology harnessed to create radical effects pedals!

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What’s the difference between the Effectrode Helios and Mercury fuzz pedals?

The circuitry of the ‘Mercury’ fuzz is very similar to the ‘Helios’ fuzz, however the N.O.S. blackplate Philips 6112 tube in the Mercury is a much more efficient emitter of electrons than the 6N17 in the Helios. This is undoubtedly because of the huge engineering resources Philips/Mullard put into researching and developing the cathode coating materials in their tubes – their reputation for quality is legendary. What this means in terms of use is that this tube gives fatter, more robust sounding fuzz and some very nice tubey tones ideal for blues. I would put this little pedal against any top of of the range tube amp – it really sounds that good!