1422-N: Difference between revisions

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Type '''1422-N Precision Variable Capacitor'''.
{{GR Product
|model=1422-N
|codes=READY
|class=capacitance standards
|summary=Precision Capacitor
|image=GR 1422-N Close-up.jpg
|caption=General Radio 1422-N Precision Capacitor
|series=1422
|introduced=1961
|discontinued=1970
|designers=
|manuals=
* [[Media:GR 1422 Series Manual.pdf|General Radio 1422 Series Precision Capacitor Manual]]
{{Catalog History}}
}}
The {{Title|General Radio 1422-N Precision Capacitor}} was introduced in {{Catalog Q}} and remained available through {{Catalog U}}.
 
It is a laboratory quality, precision variable capacitor specifically designed for RF applications, an updated design of the [[722-N]] with an aluminum case and redesigned frequency control knob.
 
The set value can be read directly from a drum mounted on the rotor shaft.  A correction chart is mounted on the panel for that particular capacitor.
 
The rotor is mounted on preloaded ball bearings in an aluminum casting, driven by a precision worm drive.
 
==Specifications==
==Specifications==
* '''Capacitance Range''' 100 to 1150 pF
* '''Dial Accuracy:''' See Experimenter
* '''Maximum Voltage:''' 1000 V peak


==Links==
==Links==


* [[Media:GR Exp 1422 08_1961.pdf|Experimenter August 1961 describing Type 1422 Series]]
{{1422 Series}}


==Photos==
==Photos==
<gallery>
<gallery>
GR 1422-N Front.jpg
GR 1422-N Side.jpg
GR 1422-N Top.jpg
GR 1422-N Rear.jpg
GR 1422-N Case Inside.jpg
GR 1422-N Interior.jpg
GR 1422-N Interior Bottom.jpg
GR 1422-N Interior Right.jpg
GR 1422-N Interior Top.jpg
</gallery>
</gallery>


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

Latest revision as of 02:13, 4 May 2024

General Radio 1422-N
Precision Capacitor
General Radio 1422-N Precision Capacitor

Available from 1961 to 1970

Manuals
Catalog History
 Document Year Page
Catalog Q 1961 160
Catalog R 1963 149
Catalog S 1965 187
Catalog T 1968 87
Catalog U 1970 112
(All manuals in PDF format unless noted otherwise)

The General Radio 1422-N Precision Capacitor was introduced in Catalog Q (1961) and remained available through Catalog U (1970).

It is a laboratory quality, precision variable capacitor specifically designed for RF applications, an updated design of the 722-N with an aluminum case and redesigned frequency control knob.

The set value can be read directly from a drum mounted on the rotor shaft. A correction chart is mounted on the panel for that particular capacitor.

The rotor is mounted on preloaded ball bearings in an aluminum casting, driven by a precision worm drive.

Specifications

  • Capacitance Range 100 to 1150 pF
  • Dial Accuracy: See Experimenter
  • Maximum Voltage: 1000 V peak

Links

1422 Series
Two-Terminal Three-Terminal
  • 1422-D  − 100-1150 / 35-115 pF
  • 1422-MD − 0-1050 / 0-105 pF ∆
  • 1422-ME − 0-105 / 0-10.5 pF ∆
  • 1422-N  − 100-1150 pF, RF

Photos