1. It was a low-distortion audio oscillator used for testing sound equipment. 2. These instruments include audio oscillator , attenuator, stroboscope, photometer, colorimeter, algesiometer, algometer, and olfactometer. 3. The company's first success was Hewlett's audio oscillator , a device to test sound equipment. 4. Also in 1937, Scott described audio oscillators based on various bridges including the Wien bridge. 5. The young company's first success was Hewlett's audio oscillator , a device to test sound equipment. 6. "We might have stopped at the audio oscillator , " the ad continued, citing HP's breakthrough products. 7. Hewlett-Packard's first product was an audio oscillator . 8. The blue box consisted of a set of audio oscillators , a telephone keypad, an audio amplifier and telephone operators. 9. Basically, it's just an audio oscillator . Preceding talk ) 02 : 35, 18 November 2008 ( UTC) 10. The TB-303 has a single audio oscillator , which may be configured to produce either a sawtooth wave or a square wave.
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