Este receptor de 5 válvulas tradicionales fue encontrado en el manual de las válvulas de la RCA de 1970. El circuito utiliza FIs de 455 kHz y recibe las estaciones de la banda de ondas medias. La antena es de cuadro.

Este receptor de 5 válvulas tradicionales fue encontrado en el manual de las válvulas de la RCA de 1970. El circuito utiliza FIs de 455 kHz y recibe las estaciones de la banda de ondas medias. La antena es de cuadro.
Este circuito utiliza un sistema alimentado por la propia red de energía, conteniendo diversos...
Encontrado en una Popular Electronics, este receptor se usa como transmisor para señales con...
Este circuito es de una antigua documentación estadounidense. SUS es un componente poco común hoy...
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