874-D20: Difference between revisions
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{{GR Product | |||
|model=874-D20 | |||
|codes=COAXTUBBER | |||
|class=GR-874 | |||
|summary=Adjustable Stub | |||
|image=GR 874-D20 Close-Up.jpg | |||
|caption=General Radio 874-D20 Adjustable Stub | |||
|series=GR-874 | |||
|introduced=1951 | |||
|discontinued=1961 | |||
|designers= | |||
|manuals= | |||
* '''Manual Needed.''' | |||
{{Catalog History}} | |||
}} | |||
The {{Title|General Radio 874-D20 Adjustable Stub}} was introduced in {{Catalog M}} and remained available through {{Catalog Q}}. | |||
The Type 874-D20 Adjustable Stub is used for matching or tuning, and use as reactive elements. Can be used with indicator and scale | |||
as reaction-type wavemeters. The stub consists of a sliding short circuit with multible-spring-finger type. The stub is operated by a baklite tube marked in centemeters. | |||
The Type 874-D20 is similar to both 1602-P1 and 1607-P1 used with [[1602-B]] Admittance Meter and [[1607-A]] Immittance Bridge. The main difference is the markings on the bakelite tube. These device are matched to their respective instruments and share their serial numbers. | |||
==Specifications== | ==Specifications== | ||
* '''Characteristic Impedance:''' 50 Ω | |||
* '''Maximum Travel:''' 20 cm | |||
* '''Minimum Setting:''' 6 cm | |||
==Links== | ==Links== | ||
* [[Media:GR Exp 874-D20 01_1950.pdf|Experimenter January 1950 describing Type 874-D20]] | |||
==Photos== | ==Photos== | ||
<gallery> | <gallery> | ||
GR 874-D20 Front.jpg | |||
GR 874-D20 Extended.jpg | |||
GR 874-D20 Connector.jpg | |||
</gallery> | </gallery> | ||
[[Category:Coaxial Elements]] | [[Category:Coaxial Elements]] | ||
[[Category:GR-874]] | [[Category:GR-874]] | ||
Latest revision as of 03:13, 25 July 2024
The General Radio 874-D20 Adjustable Stub was introduced in Catalog M (1951) and remained available through Catalog Q (1961).
The Type 874-D20 Adjustable Stub is used for matching or tuning, and use as reactive elements. Can be used with indicator and scale as reaction-type wavemeters. The stub consists of a sliding short circuit with multible-spring-finger type. The stub is operated by a baklite tube marked in centemeters.
The Type 874-D20 is similar to both 1602-P1 and 1607-P1 used with 1602-B Admittance Meter and 1607-A Immittance Bridge. The main difference is the markings on the bakelite tube. These device are matched to their respective instruments and share their serial numbers.
Specifications
- Characteristic Impedance: 50 Ω
- Maximum Travel: 20 cm
- Minimum Setting: 6 cm
