Hi guys, I am just transitioning from (guitar) pedal kit building to putting it all together myself. Not a huge leap, but given I have extremely limited electrical knowledge my confidence level is low. My first solo project is to build a Tonebender Mk1 clone, and there is a fine pcb available on this site together with the build docs. However, I'm confused regarding PNP and NPN germanium transistors, and which I would use if I want the pedal on my regular (centre-negative) pedal board. The transistors recommended on this site are PNPs, and the build has a TC1044SCPA charge pump (no idea what it is but it could be relevant!...) - does that sound ok for my needs or is there something else I should be considering? Many thanks in advance.