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Last Modified: May 20, 2019

Part Number 438A Variable Attenuator

National Stock Number: 5985-71-618-2

438A Cross Reference Parts

MFG Part Number ISC RNVC RNCC HCC MSDS SADC DAC

438A

6 2 7 5

1291014P1

6 9 3 1

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Summary Information (click on this NSN number for detailed information: 5985-71-618-2)

Definition: Variable Attenuator, also referenced with federal logistics item name code 838: A device for reducing the strength of an alternating current signal either continuously or in steps, without causing appreciable signal distortion, by maintaining substantially constant output and/or input impedance match. continuously variable resistive devices must consist of at least two sections or one section with at least two rotating contacts. the item must have an overall attenuation rating. includes tandem mounted variable resistors designed to function as an attenuator but whose terminals are not connected. see also resistor, vaiable (as modified).
Federal Supply Class (FSC): 5985
NIIN: 71-618-2 (716182)
NMF Description: ELEC APPLIANCES/INSTRUMENTS NOI
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