9,301
edits
1422-D: Difference between revisions
Jump to navigation
Jump to search
no edit summary
No edit summary |
No edit summary |
||
| Line 1: | Line 1: | ||
{{GR Product | |||
|model=1422-D | |||
|codes=RAPID,1422-9704 | |||
|class=capacitance standards | |||
|summary=Precision Capacitor | |||
|image=GR 1422-D Close-Up.jpg | |||
|caption=General Radio 1422-D Precision Capacitor | |||
|series=1422 | |||
|introduced=1961 | |||
|discontinued=1978+ | |||
|designers= | |||
|manuals= | |||
* '''Manual Needed.''' | |||
{{Catalog History}} | |||
}} | |||
The {{Title|General Radio 1422-D Precision Capacitor}} was introduced in {{Catalog Q}} and remained available through {{Catalog 1978}}. | |||
The Type 1422-D is a laboratory quality, precision variable capacitor specifically designed for audio frequency applications, an updated design of the [[722-D]] with an aluminum case and redesigned frequency control knob. It features two ranges, 35 to 115 pF and 100 to 1150 pF with connections using Type [[938-A]] Jack-Top binding posts plus ground terminal with shorting link. | |||
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''' 35 to 115 pF and 100 to 1150 pF | |||
* '''Dial Accuracy:''' See catalog listings | |||
* '''Maximum Voltage:''' 1000 V peak | |||
==Links== | ==Links== | ||
* [[Media:GR Exp 1422 08_1961.pdf|Experimenter August 1961 describing Type 1422 Series]] | |||
{{1422 Series}} | {{1422 Series}} | ||
==Photos== | ==Photos== | ||
<gallery> | <gallery> | ||
GR 1422-D Front.jpg | |||
GR 1422-D Inside Bottom.jpg | |||
GR 1422-D Inside Left.jpg | |||
GR 1422-D Inside Rear.jpg | |||
GR 1422-D Inside Top.jpg | |||
GR 1422-D Inside Right.jpg | |||
GR 1422-D Inside Right A.jpg | |||
GR 1422-N Side.jpg | |||
GR 1422-N Top.jpg | |||
GR 1422-N Rear.jpg | |||
GR 1422-N Case Inside.jpg | |||
</gallery> | </gallery> | ||
[[Category:Capacitance Standards]] | [[Category:Capacitance Standards]] | ||