A 5 C.P.S. Amplifier for Use with the Passive Bearing Finder

Abstract

A 5-cycle amplifier for use with the Passive Bearing, a thermal detector for use by submarines, was developed by this Laboratory and is now in production by the Raytheon Mfg. Co. The amplifier which peaks at 5 c.p.s., has an equivalent rectangular band width of 1.9 cycles, an input impedance of 5 ohms, a noise level equivalent to an input signal of 7 x 10(exp -10) volts, and a relaxations time of 0.4 seconds. Signal are presented aurally as the frequency modulated output of a local oscillator. An input signal of 2 x 10(exp -9) volts is easily recognizable. The entire amplifier operates from a 115-volt, 60-cycle supply.

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Document Details

Document Type
Technical Report
Publication Date
Jul 12, 1946
Accession Number
AD1199712

Entities

People

  • H. L. Clark

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Amplifiers
  • Detectors
  • Electronic Equipment
  • Frequency
  • Frequency Bands
  • Impedance
  • Local Oscillators
  • Oscillators
  • Production
  • Radio Frequency
  • Radio Frequency Oscillators
  • Submarines
  • Warning Systems

Readers

  • Brain and Cognitive Science; Experimental Psychology; Cognitive Neuroscience
  • Electronics Engineering
  • Radar Systems Engineering.