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RADIO ARAGON S L
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RADIO ARAGON S L
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Priority to ES0036455UpriorityCriticalpatent/ES36455Y/es
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Publication of ES36455YpublicationCriticalpatent/ES36455Y/es
Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups
(AREA)
Details Of Audible-Bandwidth Transducers
(AREA)
Abstract
Aparato interfónico en altavoz de empleo múltiple, perfeccionado, caracterizado por haberse dispuesto un altavoz de imán permanente, preferentemente de 3 a 4 pulgadas, que se utiliza con micrófono, que acoplado a su transformador y regulado por un potenciómetro de 500.000 ohms, ataca a una válvula preamplificadora de tipo preferentemente UAF42 o similar.
ES0036455U1953-05-291953-05-29Aparato interfónico en altavoz de empleo múltiple, perfeccionado
ExpiredES36455Y
(es)
Un sistema eléctrico para captar las señales del aparato telefónico y reproducciones amplificadas en altavoz sin conexión mecánica o eléctrica con dicho aparato