SUBMINIATURE VARIABLE RESISTORS Second Quarterly Progress Report Period:15 May 1956 to 15 August, 1956 Contract No. DA-36-039-sc-71165 Signal Corps Project No.2006A

摘要

Two groups of the bushing-mount and flat-mount resistors were constructed and subjected to performance tests. The first group of each of these resistors incorporated plastic base resistance elements and some mechanical design features which needed to be proven by testing. Some modifications were made during the tests to obtain satisfactory operation of the resistors. The second group of the resistors incorporated modifications proven by tests and also were equipped with ceramic base resistance elements. These resistor de¬signs were established as the preliminary development model designs and the resistors were tested in accordance with the specified requirements. Although some deficiencies (mostly concerned with the techniques in¬volved in forming the resistance element) were evident, the general performance of the resistors was considered quite satisfactory.