I'm a newbie to electronics and just have a simple question to post. So if capacitors block DC current, and condenser microphones are powered by this DC current, why is there a capacitor before the capsule? Wouldn't the voltage end at the cap? Based off the schematic, the DC current flows through cap C1 (rated at 240pF) then into a 1000M resistor, then into the capsule. I'm confused.