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| {{GR Product
| | Type '''980-A 1.0uf Decade Capacitor Unit'''. |
| |model=980-F
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| |codes=ACUTE
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| |class=capacitance standards
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| |summary=Decade Capacitor Unit
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| |image=GR 980-F Front.jpg
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| |caption=General Radio 980-F Decade Capacitor Unit
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| |series=980
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| |introduced=1956
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| |discontinued=1965
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| |designers=
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| |manuals=
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| * '''Manual Needed.'''
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| {{Catalog History}}
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| }}
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| The {{Title|General Radio 980-F Decade Capacitor Unit}} was introduced in {{Catalog O}} and remained available through {{Catalog S}}.
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| The Type 980-F is a decade capacitance unit comprising four Type [[505]] silver mica standard capacitors. The capacitor values are selected in a "1-2-2-5" combination. In the case of the Type 980-F it's 0.1, 0.2, 0.2, and 0.5 μF. The eleven position switch maintains a combination of the four standard capacitors in parallel to produce the decade of capacitance values. The Type 980 decade units are used in the Type [[1419-K]] Decade Capacitor. The Type 980-F was designed to replace the older Type [[380-F]].
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| ==Specifications== | | ==Specifications== |
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| * '''Total Capacitance:''' 1 μF
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| * '''Capacitance Per Step:''' .1 μF
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| * '''Accuracy:''' two or three terminal ±0.5%
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| * '''Dissipation Factor:''' less than .0003 at 1 kHz
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| * '''Maximum Voltage:''' 500 V
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| ==Links== | | ==Links== |
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| * [[Media:GR Exp 980 Series 10_1957.pdf|Experimenter October 1957 describing Type 980]]
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| * [[Media:GR Exp 505 1457-K 10_1957.pdf|Experimenter October 1957 describing Types 505 and 1457-K]]
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| ==Photos== | | ==Photos== |
| <gallery> | | <gallery> |
| GR 980-F Front.jpg
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| GR 1419-K 980-F Left.jpg
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| GR 1419-K 980-F Rear.jpg
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| GR 1419-K 980-F Right A.jpg
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| GR 1419-K 980-F Right.jpg
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| </gallery> | | </gallery> |
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| [[Category:Capacitance Standards]] | | [[Category:Capacitance Standards]] |