1481-H
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The General Radio 1481-H Inductor was introduced in Catalog M (1951) and remained available through Catalog R (1963).
The Type 1481-H inductor is of the toroid wound, dust-core design. The toroid is clamped between the two aluminum case halves. The 1481-H 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: 200 mH
- Adjustment Accuracy: ±0.4%
- RMS Current: 1.7 mA
- Resonant Frequency: 66 kHz
- DC Resistance: 7.2 Ω approximately
