A method and the associated apparatus are described in which a piece of prerecorded magnetic tape is exposed to the magnetic field of a lighting surge flowing in a conductor. The extent of erasure of the signal is later determined on a modified playback machine. The apparatus is nonpowered, inexpensive, rugged and will tolerate polarity reversals.

Author: Hays, J. B.
Affiliation: Bell Telephone Laboratories, Inc., Murray Hill, NJ
AES Convention: 15 (October 1963) Paper Number: 308
Publication Date: October 1, 1963 Import into BibTeX
Permalink: https://www.aes.org/e-lib/browse.cfm?elib=640

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