Always check first that all parts are included in the delivery. If you find any problems please contact us by email or through the "contact us" form on the pages. Note that the components may look slightly different than in the photos. Also, note that the voltage specs of the parts may be higher than what is listed. Read all the notes at BOM (bill of material) carefully.
Building ROUHI MK4 pedal
Follow the order in which the images below are assembled. We try to keep component manufacturers and types same, but sometimes we have to change the manufacturer or model of a part due to poor availability. SO if a part is a slightly different color or higher voltage rating, all is good, each component has the required values marked on the side of the part.
Please note: installation space is small, so these should be installed slightly skewed. Leave about 5mm of wire on the legs of the transistors between the housing and the board. Germanium transistors (like ge diodes) are poorly resistant to heat so work quickly. The transistors in the series are selected, so please take into account their installation locations. Note: The pads on the board and the legs of the transistor do not always line up . The legs of the transistor are in a triangular housing. When viewed from the top / through the transistor, the 90-degree angle of the triangle, the middle leg comes to the right. Cf. in the image below.
Finally, adjust the trimmer RV3. Connect a guitar cable to the input jack. Measure the voltage between the point on the image and the housing. Adjust the trimmer until the measuring point has a voltage of about 2V. You can also try playing and leaving the trimmer in the best sounding position.
Congratulations! You have a high quality boutique Fuzz pedal in your hands that is built by you! If you have any question, please do not hesitate to contact us!