Mojo Fuzz Delux NKT275 t's based on the original Dallas Arbiter circuit, but with more tonal options(Smooth and Bias controls). The pedal is handmade with high quality NOS components, including perfectly matched NKT275 germanium transistors and tantal capacitors(the best caps). The PCB is handmade using point to point soldering technique for shorter signal paths!The transistors are carefully selected and matched from a lot of transistors . It's true bypass of course and soft red indicator light and power input which is very rare to find in fuzz pedals like this. However you can not use it in daisy chain with most of the other pedals on the market, because this one has positive ground.(isolated power outputs, or battery it's the best)