Accession Number : AD0658092

Title :   A METHOD FOR COATING MADDIDA MAGNETIC MEMORY DRUMS,

Corporate Author : JOHNS HOPKINS UNIV SILVER SPRING MD APPLIED PHYSICS LAB

Personal Author(s) : Smith,C. Dixon ; Irving,I. B.

Report Date : 01 APR 1953

Pagination or Media Count : 7

Abstract : A technique was developed for applying a smooth coating of a magnetic dispersion to an aluminum drum used as a magnetic memory for a maddida unit. The finished unit is free from flaws such as 'alligatoring' and has a coating thick enough to give a 0.7 volt a.c. electrical output when the recording is made with a 300 turn winding recording head and a 50 ma. d.c. input current. (Author)

Descriptors :   (*COATINGS, MAGNETIC MATERIALS), (*MEMORY DEVICES, COATINGS), ALUMINUM, MANUFACTURING

Subject Categories : Coatings, Colorants and Finishes
      Fabrication Metallurgy
      Computer Hardware

Distribution Statement : APPROVED FOR PUBLIC RELEASE