The Monsterpiece NPN Fuzz is the Monsterpiece that started it all. It has undergone several transformations over the years, and I think that the current version is the definitive version. This is a 2 transistor silicon fuzz utilizing either BC108 or BC109 transistors (I have both, and use whatever sounds best in each individual pedal). The circuit is based on the classic fuzz face circuit, but is by no means a straight up clone. This is by far one of the most musical, dynamic, and responsive silicon fuzzes you will ever hear. A world of fuzz tones lurk within.
I now have NOS BC183 transistors available in addition to the BC108/BC109 transistors!
The controls are all external – Volume, Fuzz, Input Bias, Transistor Bias. There is also a mini-toggle “Voice” control that switches between a fuzz tone that has more or less bottom end. The controls are all very interactive – so experimentation is key.
*** Note regarding the transistor bias control on pedals shipped prior to 7/27/2017 – when this control is set past half way, the fuzz will start to become very gated, and then eventually cut out as you continue to turn it up. This is normal, and as designed to get the maximum usable bias range out of the transistors. I now have a control that allows the entire sweep of the control to be within the usable range yet still get the maximum usable bias range out of the transistors ***
The Monsterpiece NPN can be powered by 9 volt battery, or by 9 to 9.6 volt dc adapter that has a center negative barrel plug. There is also a battery on/off mini-toggle switch standard.