980-A: Difference between revisions

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-Type '''980-A  1.0uf Decade Capacitor Unit'''.
+{{GR Product
+|model=980-F
+|codes=ACUTE
+|class=capacitance standards
+|summary=Decade Capacitor Unit
+|image=GR 980-F Front.jpg
+|caption=General Radio 980-F Decade Capacitor Unit
+|series=980
+|introduced=1956
+|discontinued=1965
+|designers=
+|manuals=
+* '''Manual Needed.'''
+{{Catalog History}}
+}}
+The {{Title|General Radio 980-F Decade Capacitor Unit}} was introduced in {{Catalog O}} and remained available through {{Catalog S}}.
+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]].
 ==Specifications==
+* '''Total Capacitance:''' 1 μF
+* '''Capacitance Per Step:''' .1 μF
+* '''Accuracy:''' two or three terminal ±0.5%
+* '''Dissipation Factor:''' less than .0003 at 1 kHz
+* '''Maximum Voltage:''' 500 V
 ==Links==
+* [[Media:GR Exp 980 Series 10_1957.pdf|Experimenter October 1957 describing Type 980]]
+* [[Media:GR Exp 505 1457-K 10_1957.pdf|Experimenter October 1957 describing Types 505 and 1457-K]]
 ==Photos==
 <gallery>
+GR 980-F Front.jpg
+GR 1419-K 980-F Left.jpg
+GR 1419-K 980-F Rear.jpg
+GR 1419-K 980-F Right A.jpg
+GR 1419-K 980-F Right.jpg
 </gallery>
 [[Category:Capacitance Standards]]