Accession Number : ADD004043

Title :   Multi-Frequency Oscillator Circuit.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : Melancon,Lionel P

Report Date : 12 Apr 1977

Pagination or Media Count : 6

Abstract : A circuit for generating a first or a second A-C signal in response to a first and second switch. An oscillator circuit having two parallel capacitance networks and one resistance network which together determine the time constant for the frequency of oscillation of the first A-C signal is provided. When the first and second switch are off the first A-C signal is generated by said oscillator circuit. When the second switch is on an inverting amplifier in the oscillator circuit is electrically removed therefrom thereby electrically removing one of the parallel capacitance networks resulting in the oscillator circuit generating to second A-C signal. (Author)

Descriptors :   *Patents, *Warning systems, *Oscillators, Flight instruments, Alternating current, Sound generators, Angle of attack, Audio frequency, Audio tones, Aviation safety

Subject Categories : Flight Control and Instrumentation
      Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE