Hi,Old post but new question from a newbie. Could the last schematic just above this from Samuel Groner titled "simple 5V mic pre.pdf" be powered by the usb port with the line out going to the line in on a netbook?And, would it work with an electret capsule like the Primo EM-172? The Spec sheet for the Primo I think says it operates at 2.4k ohms +/- 30% at 1kHz. (I unfortunately do not know what that means).James
Not sure how it works. Any explanation as to how using the LowZ circuit eliminated the "hiss" ?