Title :
A magnetic recording pickup head with crossed cores of hum balance
Author_Institution :
Armour Res. Foundation, Technology Center, Chicago, Ill
Abstract :
This paper describes a simple means of hum balance for a magnetic recording pickup head. Hum level improvements of approximately 20 db are obtained in both single and double coil pickup heads by the method described in this paper.
Keywords :
Coils; Electronics packaging; Influenza; Magnetic cores; Magnetic heads; Magnetic recording; Permeability; Strips; Turning; Voltage;
Journal_Title :
Audio, IRE Transactions on
DOI :
10.1109/TAU.1957.1166030
