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Perfections in electronic organs characterized by establishing a series of oscillator circuits each equipped with a single pentode valve, and each provided with several inductive resistances connected in series with one of its ends connected through several capacitors and other resistance to the valve plate, a variable number of resistors being connected to ground according to the key pressed, with which the precise contact is closed in each case, changing by varying the characteristic of the oscillator circuit the corresponding frequency, which allows to produce with each circuit several notes. (Machine-translation by Google Translate, not legally binding)
ES233628A1957-02-141957-02-14Improvements in electronic organs (Machine-translation by Google Translate, not legally binding)
ExpiredES233628A3
(en)
Perfections designed to reduce the number of oscillators in electronic music instruments and electronic organ given of such perfections (Machine-translation by Google Translate, not legally binding)