BL110172-3ISSUE1
Coils and Transformers
TRANSFORMER,AUDIO FREQUENCY
BL110172-3ISSUE1
American Telephone And Telegraph Co
TRANSFORMER,AUDIO FREQUENCY
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Technical Characteristics
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Impedance Rating In Ohms
175.0 nominal single component single secondary
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Impedance Rating In Ohms
30000.0 nominal single component single primary
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Body Width
1.719 inches nominal
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Thread Quantity Per Inch
32 single group
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Nominal Thread Size
0.138 inches single group
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Thread Series Designator
unc single group
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Terminal Type And Quantity
5 tab, solder lug
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Thread Class
2a single group
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Thread Direction
right-hand single group
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Reliability Indicator
not established
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Frequency Rating
255.0 hertz minimum single component and 3.145 kilohertz maximum
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Primary To Secondary Turn Ratio
1 to 13 single component
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Body Length
3.125 inches nominal
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Body Height
4.406 inches nominal
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Distance Between Mounting Facility Centers
2.250 inches nominal single mounting facility single center group
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Inclosure Type
fully inclosed
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Mounting Facility Quantity
2 single group
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Mounting Method
threaded stud single group
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Winding Function And Quantity
1 primary single component and 1 secondary
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Winding Tap Location
center tap single component single primary