Seymour Duncan Pickup Booster Schematic?

brasssaddle

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1
I have the red, ver 1. All of the schematics I can find list 3 transistors but my pcb has four on them. The rest of the circuit does not matter much. I am just trying to figure out what the transistors are (for possible swapping). According tagboardeffects.blogspot.com Q1 and Q2 are BC107 and Q3 is BC177. I am just trying to find which of the transistors on mine are BC107s, if any are at all. Thanks
 




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