## A Magnetic Core Voltage-to-frequency Converter |

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AAEN EE VEAE-EFRFR7AEY considerations are discussed constant amplitude constant during flux control transistor collector control voltage varies control winding core 1 switching core 2 control core 2 winding cycle during gated D-1667 National Aeronautics d-c voltage dc input control describes a method design example entire frequency range essentially constant frequency a linear Frequency Modulation PFM gated on-off operation give a voltage high input impedance input control voltage linear function magnetic core oscillator multivibrator n a Pulse Frequency NASA NAE67NNA7 NNNA NASA NASA 67 Nhis paper describes NNS price number of turns operates from 15 operating frequency oscillator by means oscillator frequency oscillator that operates output with constant possible frequency fL Pulse Frequency Modulation quency stability slope-intercept form Space Administration square wave output square-loop magnetic core subcarrier oscillator telemetering system to-frequency converter trolling the frequency Various design considerations vc to-f characteristic vc-to-f voltage controlled oscillator voltage drop voltage to give volts