980-F

The General Radio 980-F Decade Capacitor Unit was introduced in Catalog O (1956) and remained available through Catalog S (1965).

The Type 980-F is a decade capacitance unit that contains four Type 505 silver mica standard capacitors. The capacitor values are selected in a "1-2-2-5" combination. In the Type 980-F these values are 0.1, 0.2, 0.2, and 0.5 μF. The eleven position 980-P1 switch maintains a combination of the four standard capacitors in parallel to produce the decade of capacitance values. The Type 980-F decade unit is a component of the Type 1419-K Decade Capacitor.

Specifications

• Total Capacitance: 1 μF
• Capacitance Per Step: 0.1 μF
• Accuracy: two or three terminal ±0.5%
• Dissipation Factor: less than 0.0003 at 1 kHz
• Maximum Voltage: 500 V
• Frequency Limit at Maximum Voltage: 10 kHz
• Dielectric: Silvered Mica

Links

• Experimenter October 1957 describing Type 980 and 1419-K
• Experimenter October 1957 describing Types 505 and 1457-K

Photos

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