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Summary of Contents for EPK Obsidian Distortion
- Page 1 Obsidian Distortion Building Manual...
- Page 2 Effect Pedal Kits: The Obsidian Distortion Kit is perfect if you're looking for a pedal in between an overdrive and a distortion. Unlike in 1-stage pedals, where all the gain is concentrated in one IC or transistor and the tone produced is harsher, the Obsidian Distortion Kit uses three MOSFET- based gain stages instead.
- Page 3 BOM (1/2) Resistors (19) Capacitors (14) 4.7M C1, C5, C6, C9, C12 100n R2, R10, R15 2.2M 47u (electrolytic) R3, R9, R14 R4, R11, R17 5.6k C4, C7, C11 2.2u (electrolytic) R5, R12, R16 C8, C10 100p R6, R8 R7, R18 4.7n 100k...
- Page 4 BOM (2/2) Diodes, Transistors and ICs Generic Parts and Potentiometers Q1, Q2, Q3 BS170 Battery clip L1, L2, L3 Red 3mm LED DC Jack RLED 1k LED resistor LED Bezel 3PDT IN, OUT 6.35mm Jacks 25kB (Linear) TONE 100kA (Logarithmic) 1MA (Logarithmic) GAIN...
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Page 5: Component Placement
Component Placement... -
Page 6: Board Layouts
Board Layouts 3PDT PCB Effect PCB... - Page 7 Building Tips 1- Pay attention to the orientation of the 3PDT! In the following picture you can see how the 3PDT pins should be positioned (inserting the pins in the holes can be a bit tight to avoid movement while soldering): 2- For a proper soldering you just have to apply the right amount of solder wire.
- Page 8 Building Tips 5- Pay attention to the parts that have a polarity and make sure they are connected as in the component placement picture: - ICs (they have a small dot or indication that must fit the indication in the board - Electrolytic capacitors (longer pin is connected to the “+”...
- Page 9 Building Tips 6- With the kit we include plastic PCB supports with an adhesive bottom. You can use them to anchor the PCB to your enclosure for a better stability. Just insert the PCB support tip into the 3.5mm holes and remove the adhesive protective film.
- Page 10 Schematic...
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