Accession Number:

AD0262940

Title:

DEVELOPMENT OF INDUCTOR MICROELEMENTS

Descriptive Note:

Corporate Author:

RADIO CORP OF AMERICA CAMDEN NJ DEFENSE ELECTRONIC PRODUCTS

Personal Author(s):

Report Date:

1958-03-17

Pagination or Media Count:

100.0

Abstract:

The inductor task under the Initial Program had three broad objectives to demonstrate manufacturing feasibility, to demonstrate microelementinductor reliability, and to establish sources of supply for cores and inductors. All three of these broad objectives were achieved. During the micro-module assembly process all microelements were coated with silicone elastomer, DC-271, as an impregnant and cement to prevent direct adhesion of the encapsulant to the components to reduce effects of the encapsulant on temperature coefficients. A Teflon coating on the unwound ferrite core further reduced this effect. Considerable work was devoted to inductor winding methods. Early attempts to wind rf transformers gave unsatisfactory results due to faulty placement of secondary windings. Use of a special core holder in conjunction with a segment winder improved both the uniformity of angle occupied by the primary, and improved the uniformity of locating the secondary start. All types of cores were wound with a total error not exceeding or - degrees.

Subject Categories:

  • Electrical and Electronic Equipment

Distribution Statement:

APPROVED FOR PUBLIC RELEASE