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Schematic + It may be possible to substitute other transistors or transformer. Please don’t ask for advice on this as we haven’t tested any others, though 2N3391 will work fine for Q1-6. 100n D1 5 1N4148 150K 1u elec 150K 220K 100n Q1 6...
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The power and signal pads on the PCB conform to the FuzzDog Direct Connection format, so can be paired with the appropriate daughterboard for quick and easy offboard wiring. Be very careful when soldering the diodes, LED and transistors. They’re very sensitive to heat. You should use some kind of heat sink (crocodile clip or reverse action tweezers) on each leg as you solder them.
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When everything else is in place its time to mount the transformer. The header pins and transformer mount it on the same side of the board as the screenprint showing the transformer and the numbers 1-6. First place your header pins in the two rows of numbered pads. Make sure they’re perfectly vertical. You can place them into place on the main board while you’re soldering to ensure they remain straight.
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RED PCB HACK If you’ve bought the B-Stock Red PCB you need to run a wire to a resistor to make it work. The leg of R29 marked in red below needs to be connected to 9V. There are several ways to do this. The neatest way is to leave a little of the leg remaining when you solder in R29 and R20 (marked in blue).
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Test the board! A A T our nic e, ne w cir cuit boa INCL UDING WIRED PO !!!! UNDER NO CIRCUMSTANCES will troubleshooting help be offered if you have skipped this stage. No exceptions. Once you’ve finished the circuit it makes sense to test is before starting on the switch and LED wiring.
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Wire it up - DC only version (if using a daughterboard please refer to the relevant document) BOARD BOARD INPUT BOARD BOARD BOARD BOARD LED+ BOARD BOARD This circuit is standard, Negative GND. Your power supply should be Tip Negative / Sleeve Positive. That’s the same as your standard pedals (Boss etc), and you can safely daisy-chain your supply to this pedal.
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Wire it up - with battery (if using a daughterboard please refer to the relevant document) BOARD BOARD INPUT BOARD BOARD BOARD BOARD LED+ BOARD BOARD BATTERY This circuit is standard, Negative GND. Your power supply should be Tip Negative / Sleeve Positive. That’s the same as your standard pedals (Boss etc), and you can safely daisy-chain your supply to this pedal.
Drilling template Recommended drill sizes: Pots Hammond 1590BB Jacks 10mm Footswitch 12mm 91 x 116 x 30mm DC Socket 12mm (top face dimensions, not including lid) Toggle Switch It’s a good idea to drill the holes for the pots and toggles 1mm larger to give yourself some wiggle room...
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