1481-J: Difference between revisions
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|class=inductance standards | |class=inductance standards | ||
|summary=500 mH, ±0.4% inductor | |summary=500 mH, ±0.4% inductor | ||
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|caption=General Radio 1481-J Inductor | |caption=General Radio 1481-J Inductor | ||
|series=1481 | |series=1481 | ||
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GR 1481-J Front A.jpg | |||
GR 1481-J Front.jpg | |||
GR 1481 Top.jpg | GR 1481 Top.jpg | ||
GR 1481 Rear.jpg | GR 1481 Rear.jpg | ||
Latest revision as of 21:51, 17 July 2024
The General Radio 1481-J Inductor was introduced in Catalog M (1951) and remained available through Catalog R (1963).
The Type 1481-J inductor is of the toroid wound, dust-core design. The toroid is clamped between the two aluminum case halves. The 1481-J 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: 500 mH
- Adjustment Accuracy: ±0.4%
- RMS Current: 1.1 mA
- Resonant Frequency: 41 kHz
- DC Resistance: 22 Ω approximately
