General Radio 1482F Standard Inductor
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General Radio 1482F is a precision standard inductor with ±0.01% per year stability, toroidal design, and ISO-17025 accredited calibration for metrology applications.
Product details
| Model | 1482F |
| Manufacturer | General Radio |
| Category | Electrical Calibrators |
| Availability | Made to order |
Description
Overview
The General Radio 1482F is a precision standard inductor designed for use as a low-frequency reference or working standard in metrology laboratories. It is produced to the same exacting specifications as the original General Radio inductors and is used by national metrology institutes and primary standards bodies worldwide.
Key Features
- Stable within ±0.01% per year with documented long-term stability over 30+ years
- Toroidal construction on ceramic core with negligible external magnetic field and no pickup from external fields
- Resilient mounting in cork and silica gel mixture, potted with compound in aluminum case
- For 500 µH and above: three-terminal configuration for flexible measurement setup
- For 50 µH, 100 µH, and 200 µH models: additional switching terminals to minimize connection errors
- Low, known temperature coefficient
- ISO-17025 accredited calibration included
Applications
- Low-frequency inductance reference standards
- Primary and working standards in metrology laboratories
- National metrology institutes and primary standards bodies
- Comparison measurements with 1689 or 1693 Digibridge instruments
Specifications
| Stability | ±0.01% per year |
| Construction | Toroidal, ceramic core |
| External Magnetic Field | Negligible |
| Housing | Aluminum case |
| Mounting | Cork and silica gel with potting compound |
| Terminal Options | 3-terminal standard or additional switching terminals depending on model |
| Calibration | ISO-17025 accredited |
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General Radio 1482F Standard Inductor
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