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James A. Van Allen journal, October 1955-March 1958
Page 266
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Northam Miniature Magnetic Tape Recorders Northam Electronics, Inc. 2420 N. Lake Avenue Altadena, California Diameter 5.3 inches Length 7.0 inches Weight 4.5 pounds Shock Resistance while recording -- 250g axially; 50g transversely. Ultimate shock without damage -1200g 7 track recorder, transistorized timing oscillator. 15 inches/second
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Northam Miniature Magnetic Tape Recorders Northam Electronics, Inc. 2420 N. Lake Avenue Altadena, California Diameter 5.3 inches Length 7.0 inches Weight 4.5 pounds Shock Resistance while recording -- 250g axially; 50g transversely. Ultimate shock without damage -1200g 7 track recorder, transistorized timing oscillator. 15 inches/second
Van Allen Papers
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