1/2" microphone preamplifier
10 %u2013 20 kHz | Nor1207 Norsonic AS

The Nor1207 is a low cost, general-purpose ICP®-preamplifier for 1/2" working standard prepolarized condenser microphones, designed for the most demanding use. It features a new design technology that increase the dynamic range to a value normally featured by traditional powered preamplifiers only. It is the first pattern evaluated ICP® preamplifier on the market, ensuring a high quality of the measurement in every environmental condition as specified in the class 1 requirements given in IEC-61672.

Nor1207 apply a male TNC-connector for connection to cable or instrument, while Nor1207/BNC comes with a BNC female connector.

Technical specification
(Data given with 3mA supply current)
The preamplifier has to be supplied by a constant current in the range 3 - 20 mA. The output voltage will be a fixed DC (about 10 volt) plus the AC-coupled input voltage. Output AC-voltage swing is minimum +/-5 volt if not limited by the voltage for the current source.