1404-A: Difference between revisions
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{{GR Product | |||
|model=1404-A | |||
|codes=1404-9701 | |||
|class=capacitance standards | |||
|summary=Reference Standard Capacitor | |||
|image=GR 1404-A Front A.jpg | |||
|caption=General Radio 1404-A Reference Standard Capacitor | |||
|series=1404 | |||
|introduced=1963 | |||
|discontinued=1978+ | |||
|designers= | |||
|manuals= | |||
* '''Manual Needed.''' | |||
{{Catalog History}} | |||
}} | |||
The {{Title|General Radio 1404-A Reference Standard Capacitor}} were introduced in {{Catalog R}} and remained available through {{Catalog 1978}}. | |||
The Type 1404-A capacitor is designed as a primary reference standard of capacitance with which working standards can be compared. The capacitor plates are constructed of Invar and assembled in a sealed container with dry nitrogen under pressure slightly above atmospheric. This type of construction is less affected by external atmospheric conditions and increased stability. Each capacitor is shipped with a calibration certificate with specifications for that particular instrument. | |||
==Specifications== | ==Specifications== | ||
* '''Capacitance:''' 1000 pF | |||
* '''Stability:''' 20 parts per million per year | |||
* '''Temperature Coefficient of Capacitance:''' 2 ±2 ppm/°C from -20°C to +65°C. | |||
* '''Dissipation Factor:''' less than .00005 at 1 kHz | |||
* '''Maximum Voltage:''' 750 volts | |||
* '''Terminals:''' two locking [[GR-874]] coaxial connectors | |||
==Links== | ==Links== | ||
* [[Media:GR Exp 1404 Series 08_1963.pdf|Experimenter Auguse 1963 describing Type 1404 Series]] | |||
==Photos== | ==Photos== | ||
<gallery> | <gallery> | ||
GR 1404-A Front A.jpg | |||
GR 1482 Side.jpg | |||
GR 1482 Side A.jpg | |||
GR 1482 Bottom.jpg | |||
</gallery> | </gallery> | ||
[[Category:Capacitance Standards]] | [[Category:Capacitance Standards]] | ||
Revision as of 10:35, 8 August 2024
The General Radio 1404-A Reference Standard Capacitor were introduced in Catalog R (1963) and remained available through Catalog 1978.
The Type 1404-A capacitor is designed as a primary reference standard of capacitance with which working standards can be compared. The capacitor plates are constructed of Invar and assembled in a sealed container with dry nitrogen under pressure slightly above atmospheric. This type of construction is less affected by external atmospheric conditions and increased stability. Each capacitor is shipped with a calibration certificate with specifications for that particular instrument.
Specifications
- Capacitance: 1000 pF
- Stability: 20 parts per million per year
- Temperature Coefficient of Capacitance: 2 ±2 ppm/°C from -20°C to +65°C.
- Dissipation Factor: less than .00005 at 1 kHz
- Maximum Voltage: 750 volts
- Terminals: two locking GR-874 coaxial connectors
Links
