ES8205087A2 - Improvements introduced in the object of the main patent no. 476,398 for improvements introduced in the volume controls of sound distribution systems. (Machine-translation by Google Translate, not legally binding)
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Improvements introduced in the object of the main patent no. 476,398 for improvements introduced in the volume controls of sound distribution systems. (Machine-translation by Google Translate, not legally binding)
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Publication of ES504489A0publicationCriticalpatent/ES504489A0/en
Device for regulating sound in amplifier sounds. (certificate of addition of the patent num 476398). Formed by circuits responsible for eliminating disturbing signals, to which the entry terminals are connected; for circuits, based on operational amplifiers, which, together with others, composed by filters networks, are in charge of regulating the volume, tonality and balance, through a control potentiometer, and by an amplifiers that collect the signs from the above circuits. (Machine-translation by Google Translate, not legally binding)
ES504489A1981-07-311981-07-31
IMPROVEMENTS INTRODUCED IN THE PURPOSE OF MAIN PATENT NUM. 476,398 FOR IMPROVEMENTS INTRODUCED IN THE VOLUME CONTROLS OF SOUND DISTRIBUTION SYSTEMS
GrantedES504489A0
(en)
Improvements introduced in the object of the main patent no. 476,398 for improvements introduced in the volume controls of sound distribution systems. (Machine-translation by Google Translate, not legally binding)
Multiple system of sound distribution or any low frequency signal susceptible of several simultaneous uses (Machine-translation by Google Translate, not legally binding)