General Radio 1482-K / 1482K GenRad Standard Inductor 50 mh ± 0.1%.

 The 1482 is an accurate, highly stable standard of self- inductance for use as a low frequency reference or work-ing standard in the laboratory. Records extending over 40 years, including those of inductors that traveled to national laboratories in several countries for calibration, show long-term stability well within ±0.01%., typically much lower.

• A standard for national laboratories
• Stability within ±0.01% per year; typically much better
• Values from 10 μH to 10 H
• Standard for quality factor
• Low, known temperature coefficient
• Self-shielding toroidal design