ÿþ<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <html> <head> <link rel="stylesheet" type="text/css" href="../../Nor150_style_sheet.css" /> <title>Microphone</title> </head> <body> <h1>Specifications</h1> <p> Microphones<br /> Many different types of microphones can be used with the Nor150.<br /> </p> <p> General purpose:<br /> Nor1225 Free field<br /> Nor12XX Pressure field<br /> Nor12XX Diffuse field<br /> </p> <p> General purpose, prepolarized:<br /> Nor1227 Free field<br /> Nor12XX Pressure field<br /> Nor12XX Diffuse field<br /> </p> <p> Polarisation voltage:<br /> 0 ±1 V or 200 ±1 V selectable<br /> Short-circuit current: <1mA, Impedance: 2 M© </p> <p> <img src="../../Help/Image/Microphone.bmp" width="272" height="404" alt="Microphone" /> </p> </body> </html>