Recent content by Curi0sity

Davenn - I did use carbon film resistors, just stock from the electrical prototyping bin. I will order some low noise resistors. I didn't realize resistors could cause so much noise (I suppose I could calculate it...) Thanks TFR000 - With nothing connected to the sound card input the output is...

Hello all, I am designing a microphone preamp with some odd conditions. The microphone is dynamic. The impedance of the microphone is around 4 to 8 ohms (very odd mic, M-87/AIC). The goal is to interface the mic with a PC sound card which is designed to operate with an electret type. I have...