1401: Difference between revisions

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(Created page with "{{GR Product |model=1401 |codes= |class=capacitance standards |summary=Standard Air Capacitor |image=GR 1401-A Front A |caption=General Radio 1401 Series Standard Air Capacitors |series=1401 |introduced=1951 |discontinued=1965 |designers= |manuals= * '''Manual Needed.''' {{Catalog History}} }} The {{Title|General Radio 1401 Series Standard Air Capacitors}} was introduced in {{Catalog M}} and remained available through {{Catalog S}}. The Type 1401 series are two termina...")
 
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|class=capacitance standards
|class=capacitance standards
|summary=Standard Air Capacitor
|summary=Standard Air Capacitor
|image=GR 1401-A Front A
|image=GR 1401-A Front A.jpg
|caption=General Radio 1401 Series Standard Air Capacitors
|caption=General Radio 1401 Series Standard Air Capacitors
|series=1401
|series=1401
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The {{Title|General Radio 1401 Series Standard Air Capacitors}} was introduced in {{Catalog M}} and remained available through {{Catalog S}}.  
The {{Title|General Radio 1401 Series Standard Air Capacitors}} was introduced in {{Catalog M}} and remained available through {{Catalog S}}.  


The Type 1401 series are two terminal air capacitors designed as laboratory reference or working capacitance standards. They features all aluminum construction with shielded covers.  Connections are Type 274 plugs spaced ¾ inches on center. This spacing matches the Type [[716-C]] making them useful as balancing capacitors when performing substitution measurements. The Type 1401 series is comprised of four capacitor types [[1401-A]], [[1401-B]], [[1401-C]], and [[1401-D]].
The Type 1401 series is comprised of four capacitor types − [[1401-A]], [[1401-B]], [[1401-C]], and [[1401-D]]. They are two-terminal air capacitors designed as laboratory reference or working capacitance standards. They feature all-aluminum construction with shielded covers.  Connections are [[274|Type 274 plugs]] spaced ¾ inches on center. This spacing matches the [[716-C|Type 716-C Capacitance Bridge]], making the 1401s useful as balancing capacitors when performing substitution measurements.  


==Specifications==
==Specifications==
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* '''Stability:''' Capacitance change is less than 0.05% per year
* '''Stability:''' Capacitance change is less than 0.05% per year
* '''Residual Impedances:''' The series inductance of all units is approximately 0.05 μH
* '''Residual Impedances:''' The series inductance of all units is approximately 0.05 μH
* '''Temperature Coefficient of Capacitance:''' Typically 10 to 20 ppm/C° between 20° and 70°C.
* '''Temperature Coefficient of Capacitance:''' Typically 10 to 20 ppm/C° between 20° and 70°C
* '''Terminals:''' Type 274 plugs, spaced ¾ inch on centers, to plug into Type 938 binding posts
* '''Terminals:''' [[274|Type 274 plugs]], spaced ¾ inch on centers, to plug into [[938-A|Type 938 binding posts]]


==Links==


==Links==
{| class="wikitable" style="margin:auto"
{| class="wikitable" style="margin:auto"
|+ Type 1401 Series of Standard Air Capacitors
|+ Type 1401 Series of Standard Air Capacitors
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|}
|}


==Photos==


==Photos==
<gallery>
<gallery>
GR 1401-A Front A.jpg
GR 1401-A Front A.jpg
GR 1401-B Front A.jpg
GR 1401-B Front A.jpg
GR 1401-C Front.jpg
GR 1401-C Front.jpg
GR 1401-D Front.jpg
GR 1401-D Close-Up.JPG
</gallery>
</gallery>


[[Category:Capacitance Standards]]
[[Category:Capacitance Standards]]

Latest revision as of 15:32, 12 May 2024

General Radio 1401
Standard Air Capacitor
General Radio 1401 Series Standard Air Capacitors

Available from 1951 to 1965

Manuals
  • Manual Needed.
Catalog History
 Document Year Page
(All manuals in PDF format unless noted otherwise)

The General Radio 1401 Series Standard Air Capacitors was introduced in Catalog M (1951) and remained available through Catalog S (1965).

The Type 1401 series is comprised of four capacitor types − 1401-A, 1401-B, 1401-C, and 1401-D. They are two-terminal air capacitors designed as laboratory reference or working capacitance standards. They feature all-aluminum construction with shielded covers. Connections are Type 274 plugs spaced ¾ inches on center. This spacing matches the Type 716-C Capacitance Bridge, making the 1401s useful as balancing capacitors when performing substitution measurements.

Specifications

  • Stability: Capacitance change is less than 0.05% per year
  • Residual Impedances: The series inductance of all units is approximately 0.05 μH
  • Temperature Coefficient of Capacitance: Typically 10 to 20 ppm/C° between 20° and 70°C
  • Terminals: Type 274 plugs, spaced ¾ inch on centers, to plug into Type 938 binding posts

Links

Type 1401 Series of Standard Air Capacitors
Type Insertion Capacitance Initial Accuracy Peak Volts Dissipation Factor Catalog Number
1401-A 100 pF 0.2% 1500 V 0.0001 1401-9701
1401-B 200 pF 0.15% 1200 V 0.00005 1401-9702
1401-C 500 pF 0.12% 900 V 0.00002 1401-9703
1401-D 1000 pF 0.1% 700 V 0.00001 1401-9704

Photos