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Beat-Frequency Oscillator
Photograph of the prototype showing, the manometer and beat frequency... | Download Scientific Diagram
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![Elements of acoustical engineering. Electro-acoustics; Sound. TESTING OF LOUD SPEAKERS 257 A cathode ray tube/^-^" with a long persistence screen, may be used as a response indicator and recorder, Fig. 11.8.](https://c8.alamy.com/comp/RCR5CF/elements-of-acoustical-engineering-electro-acoustics-sound-testing-of-loud-speakers-257-a-cathode-ray-tube-quot-with-a-long-persistence-screen-may-be-used-as-a-response-indicator-and-recorder-fig-118-a-motor-drives-the-beat-frequency-oscillator-and-a-potentiometer-the-potentiometer-varies-the-voltage-on-the-horizontal-deflection-plate-of-the-cathode-ray-tube-and-thereby-drives-the-cathode-ray-beam-across-the-tube-in-synchronism-with-the-oscillator-a-reversing-switch-changes-the-direction-of-the-motor-travel-at-the-upper-and-lower-limits-of-the-audio-frequency-range-the-output-RCR5CF.jpg "Elements of acoustical engineering. Electro-acoustics; Sound. TESTING OF LOUD SPEAKERS 257 A cathode ray tube/^-^" with a long persistence screen, may be used as a response indicator and recorder, Fig. 11.8.")
Elements of acoustical engineering. Electro-acoustics; Sound. TESTING OF LOUD SPEAKERS 257 A cathode ray tube/^-^" with a long persistence screen, may be used as a response indicator and recorder, Fig. 11.8.
Conceptual diagram of a beat frequency oscillator based audio generator. | Download Scientific Diagram
Beat frequency oscillator - Wikipedia
Oscillators / Osciladores - Littlesoft electronics
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