1409-X: Difference between revisions
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{{GR Product | {{GR Product | ||
|model=1409-X | |model=1409-X | ||
|codes=1409-1409- | |codes=1409-1409-9724 | ||
|class=Capacitance Standards | |class=Capacitance Standards | ||
|summary=0.5μF,0.05% Standard Capacitor | |summary=0.5μF,0.05% Standard Capacitor | ||
|image= | |image=GR 1409-X Front.jpg | ||
|caption=General Radio 1409-X Standard Capacitor | |caption=General Radio 1409-X Standard Capacitor | ||
|series=1409 | |series=1409 | ||
| Line 16: | Line 16: | ||
The {{Title|General Radio General Radio 1409-X Standard Capacitor}} was introduced in {{Catalog O}} and remained available through {{Catalog U}}. | The {{Title|General Radio General Radio 1409-X Standard Capacitor}} was introduced in {{Catalog O}} and remained available through {{Catalog U}}. | ||
The 1409-X is a fixed mica capacitor of very high stability for use as two or three-terminal capacitance standards in the laboratory. The capacitor is installed in an aluminum case along with Silica gel desiccant then sealed with hi-temp potting wax. A well located on the right side of the case for the insertion of a dial-type thermometer. Three jack-top binding posts are provided on the top of the case and removable plugs on the bottom, for convenient parallel connection without error. Each capacitor is supplied with a certificate of calibration giving two and three terminal measured capacitance. The Type 1409-X capacitor is mounted in the | The 1409-X is a fixed mica capacitor of very high stability for use as two or three-terminal capacitance standards in the laboratory. The capacitor is installed in an aluminum case along with Silica gel desiccant then sealed with hi-temp potting wax. A well located on the right side of the case for the insertion of a dial-type thermometer. Three jack-top binding posts are provided on the top of the case and removable plugs on the bottom, for convenient parallel connection without error. Each capacitor is supplied with a certificate of calibration giving two and three terminal measured capacitance. The Type 1409-X capacitor is mounted in the medium case. | ||
See [[1409]] to view all the capacitors in the series. | See [[1409]] to view all the capacitors in the series. | ||
| Line 40: | Line 40: | ||
GR 1209 Figure 2.jpg|Dissipation factor as a function of frequency. | GR 1209 Figure 2.jpg|Dissipation factor as a function of frequency. | ||
GR 1409 Technical Drawing.jpg|Technical Drawing. | GR 1409 Technical Drawing.jpg|Technical Drawing. | ||
GR 1409-X Front.jpg | |||
GR 1409-X Terminal Medium Case.jpg | |||
GR 1409 | GR 1409-X Bottom Medium Case.jpg | ||
GR 1409 | |||
GR 1409 | |||
</gallery> | </gallery> | ||
[[Category:Capacitance Standards]] | [[Category:Capacitance Standards]] | ||
Latest revision as of 17:24, 12 July 2024
The General Radio General Radio 1409-X Standard Capacitor was introduced in Catalog O (1956) and remained available through Catalog U (1970).
The 1409-X is a fixed mica capacitor of very high stability for use as two or three-terminal capacitance standards in the laboratory. The capacitor is installed in an aluminum case along with Silica gel desiccant then sealed with hi-temp potting wax. A well located on the right side of the case for the insertion of a dial-type thermometer. Three jack-top binding posts are provided on the top of the case and removable plugs on the bottom, for convenient parallel connection without error. Each capacitor is supplied with a certificate of calibration giving two and three terminal measured capacitance. The Type 1409-X capacitor is mounted in the medium case.
See 1409 to view all the capacitors in the series.
Specifications
- Capacitance: 0.5 μF
- Series Inductance: 0.055 μH
- Adjustment Accuracy: within ±0.05%
- Stability: Capacitance change is less than 0.01% per year
- Temperature Coefficient: capacitance; +35 ± 10 ppm per degree between 10 °C and 70 °C
- Dissipation Factor: Less than 0.0003 at 1 kHz and 23 °C (see curves). Measured dissipation factor at 1 kHz is stated in the certificate to an accuracy of ±0.00005
- Leakage Resistance: 5000 ohm-farads or 100 GΩ, whichever is the lesser
- Maximum Voltage: 500 V peak below 35 kHz
Links
Photos
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Change in capacitance as a function of frequency for typical Type 1409 capacitors.
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Dissipation factor as a function of frequency.
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Technical Drawing.
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