Part Number 490B-1

Telephone Test Set

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Part Number
DEMIL
Shelf Life
UOM
NIIN
Part:
490b-1
Demil:
No
Shelf Life:
UOM:
NIIN:
001260217

Part Information
Carrier frequency range 100 hz to 600 khz; 5 digit frequency counter readout

NSN
National Stock Number:
6625-00-126-0217 6625001260217
TXT
Description:
Telephone Test Set
INC
INC
Item Name Code:
03681
MRC:
The value,or range of values,of root mean square potential for which the item is rated.ACYN
Ac Voltage Rating:
115.0 volts or 230.0 volts
MRC:
The number of complete cyclic changes,per unit of time,for which an item is rated.ACZB
Frequency Rating:
Between 47.0 hertz and 63.0 hertz
MRC:
The relationship of the electrical power source to the item.AKWC
Electrical Power Source Relationship:
Operating
MRC:
An indication of the feature/s/ of the inclosure.ANPZ
Inclosure Feature:
Single item w/housing
MRC:
Indicates the type of test for which the item is designed.AQXY
Test Type For Which Designed:
Envelope delay measurement
MRC:
The number of alternating current phases.FAAZ
Phase:
Single
MRC:
Describes the capabilities,intended use,and/or purpose for which the item is provided.FTLD
Functional Description:
Envelope delay measuring set consists of a transmitter and receiver which measures delay versus frequency and amplitude versus frequency in transmission systems and neworks. Frequency range 100hz to 552khz
MRC:
Literature and references available for information pertaining to the item.RDAL
Reference Data And Literature:
To 33a1-5-342-1
MRC:
Characteristics or qualities of an item,not covered in any other requirement,which are considered essential information for one or more functions excluding nsn assignment.SUPP
Supplementary Features:
Manufacturers name: envelope delay distortion test set

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