Un excelente generador de señales para la pista de audio fue encontrado en una documentación de 1983. Su diagrama completo se muestra en la figura observándose que utiliza dos circuitos integrados. El primero es, evidentemente, el 555 utilizado como oscilador para la producción de las señales de audio, y el otro es un estabilizador de tensión para la fuente, del tipo 7805 El aparato tiene dos bandas de ondas que permiten la siguiente cobertura de frecuencias:

Rango1-1 Hz a 727 Hz

Rango 2 -100 Hz a 72,7 kHz

    El ajuste de la frecuencia en cada faja es hecho por el potenciómetro de 2M2 lineal. El potenciómetro de 4k7, lineal también, se utiliza para ajustar la intensidad de la señal de salida. Esta salida tiene una amplitud máxima de 5 V y su forma de onda es rectangular. El transformador utilizado en la fuente de alimentación es de 6 + 6V y debe tener una corriente de al menos 250 mA.

 


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18.813MBMemory Usage42.64msRequest Duration
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