FINAL REPORT on TASK IV. RESISTORS, VARIABLE, WIRE-WOUND, PRECISION

摘要

Specimens were purchased from four specified manufacturers ("F", "H", "I", and "J") as indicated in the Manufacturers' Code which has been transmitted to the Signal Corps Engineering Laboratory. These resistors were investigated to determine how the linearity accuracy and total re-sistance are affected by rotational life, load life, temperature cycling, low-temperature operation and storage, and moisture-resistance cycling. Dielectric-strength, noise, and temperature-coefficient investigations were also performed.