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1390-B - IET Labs Noise Generators


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  • Model: 1390-B
  • Manufactured by: IET Labs
  • Frequency Range Max.: 5.000MHz
  • Max. Power Density: n/a
  • Extra Specifications: Random-Noise Generator

This instrument generates wide-band noise of uniform spectrum level, particularly useful for noise and vibration testing in electrical and mechanical systems. The noise output of a gas-discharge tube is amplified and shaped with low-pass filters to provide ranges to 20 kHz, 500 kHz, and 5 MHz.

The output level is controlled by a continuous attenuator followed by a 4-step attenuator of 20-dB per step and is metered from over 3 volts to below 30 microvolts. When the attenuator is used, the output impedance remains essentially constant as the output level is adjusted.

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