1481-A: Difference between revisions
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(Created page with "Type '''1481-A Standard Inductor 1mH'''. ==Specifications== ==Links== ==Photos== <gallery> </gallery> Category:Inductance Standards") |
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{{GR Product | |||
|model=1481-A | |||
|codes=INDUCTOSAP,1481-9701 | |||
|class=inductance standards | |||
|summary=1 mH, ±1% inductor | |||
|image=Photo Needed.jpg | |||
|caption=General Radio 1481-A Series Inductor | |||
|series=1481 | |||
|introduced=1951 | |||
|discontinued=1963 | |||
|designers= | |||
|manuals= | |||
* '''Manual Needed.''' | |||
{{Catalog History}} | |||
}} | |||
The {{Title|General Radio 1481-A Series Inductor}} was introduced in {{Catalog M}} and remained available through {{Catalog R}}. | |||
The Type 1481-A inductor is of the toroid wound, dust-core design. The toroid is clamped between the two aluminum case halves. The 1481-A inductor is derived from Types 940 and 1490 decade inductors. Each inductor is engraved with nominal inductance, accuracy, and inductance change versus current. The connections are Type [[938-B]] Jack-Top binding posts, one being grounded. | |||
See the overview page [[1481]] for the complete series. | |||
==Specifications== | ==Specifications== | ||
* '''Nominal Inductance:''' 1 mH | |||
* '''Adjustment Accuracy:''' ±1% | |||
* '''RMS Current:''' 24 ma | |||
* '''Resonant Frequency:''' 1.10 MHz | |||
* '''DC Resistance:''' 0.043 Ω approximately | |||
==Links== | ==Links== | ||
* [[Media:GR Exp 1491 12_1950.pdf|Experimenter December 1950 describing Type 1491 Series]] | |||
==Photos== | ==Photos== | ||
<gallery> | <gallery> | ||
Photo Needed.jpg | |||
GR 1481 Top.jpg | |||
GR 1481 Rear.jpg | |||
GR 1481 Q versus Fo.jpg | |||
GR 1481 L change versus Current.jpg | |||
</gallery> | </gallery> | ||
[[Category:Inductance Standards]] | [[Category:Inductance Standards]] | ||
Revision as of 08:01, 16 July 2024
The General Radio 1481-A Series Inductor was introduced in Catalog M (1951) and remained available through Catalog R (1963).
The Type 1481-A inductor is of the toroid wound, dust-core design. The toroid is clamped between the two aluminum case halves. The 1481-A inductor is derived from Types 940 and 1490 decade inductors. Each inductor is engraved with nominal inductance, accuracy, and inductance change versus current. The connections are Type 938-B Jack-Top binding posts, one being grounded.
See the overview page 1481 for the complete series.
Specifications
- Nominal Inductance: 1 mH
- Adjustment Accuracy: ±1%
- RMS Current: 24 ma
- Resonant Frequency: 1.10 MHz
- DC Resistance: 0.043 Ω approximately
