Accession Number:

AD0658092

Title:

A METHOD FOR COATING MADDIDA MAGNETIC MEMORY DRUMS,

Descriptive Note:

Corporate Author:

JOHNS HOPKINS UNIV SILVER SPRING MD APPLIED PHYSICS LAB

Personal Author(s):

Report Date:

1953-04-01

Pagination or Media Count:

7.0

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

Subject Categories:

  • Coatings, Colorants and Finishes
  • Fabrication Metallurgy
  • Computer Hardware

Distribution Statement:

APPROVED FOR PUBLIC RELEASE