1409-L

From GRWiki
Jump to navigation Jump to search
General Radio 1409-L
0.01μF,0.05% Standard Capacitor
General Radio 1409-L Standard Capacitor

Available from 1956 to 1978+

Manuals
  • Manual Needed.
Catalog History
 Document Year Page
Catalog O 1956 156
Catalog P 1959 169
Catalog Q 1961 163
Catalog R 1963 152
Catalog S 1965 192
Catalog T 1968 89
Catalog U 1970 115
Catalog73 1973 179
Catalog78 1978 70
(All manuals in PDF format unless noted otherwise)

The General Radio General Radio 1409-L Standard Capacitor was introduced in Catalog O (1956) and remained available through Catalog 1978.

The 1409-L 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-L capacitor is mounted in the small case.

See 1409 to view all the capacitors in the series.

Specifications

  • Capacitance: 0.01 μF
  • Series Inductance: 0.050 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 750 kHz

Links

Photos