Transmisor FM 40 W (CIR11699S)

Written by: Newton C. Braga
Category: Banco de circuitos

 

    Este potente transmisor puede cubrir varios kilómetros dependiendo solo de la antena y la topografía del sitio. En el oscilador se utilizó un transistor BF254 controlado por cristal. Este cristal puede ser cualquiera para la gama FM. Para regular la tensión en el circuito oscilador usamos un 7809. Para la excitación usamos los transistores 2N3553 y 2N4428 con la tensión regulada por un 7812. En el paso final, se usó un transistor de potencia 1N6084 para 40W. Los excitadores y los transistores de salida deben montarse en buenos radiadores de calor. Los recortadores son de porcelana o plástico de 1-18 pF y todos los capacitores son de cerámica. La fuente de alimentación utiliza un transformador de 24 V con excelente filtración. Los choques se construyen de la siguiente manera:

XRF1: 28 vueltas de 32 hilos en el bastoncillo.

XRF2: igual que XRF1

XRF3: 12 bucles de cable de 18 cm de diámetro 1 en núcleo de ferrita de 20 cm de largo

Las bobinas se forman de la siguiente manera:

L1, L2 - 6 vueltas de cable de 18 8.5 mm de diámetro

L3 - 4 vueltas de 16 8.5 mm de diámetro

L4 - 9 vueltas de cable de 18 cm 1 cm

L5 - Igual que L3

L6 - 6.5 vueltas de cable de 16 cm 1 cm

L7 - 8 vueltas de alambre de 16 cm 1 cm

L8: 5 vueltas de cable de 14 cm y 1,5 cm

En el ajuste debe utilizarse la carga fantasma y el diseño debe estar muy bien planificado. Este conjunto solo es adecuado para aquellos que tienen experiencia con circuitos de alta potencia. También se deben respetar las restricciones legales sobre la operación de este tipo de equipo.

 

Transmisor FM 40 W
Transmisor FM 40 W

 

 

 

Buscador de Datasheets


N° de Componente 

Banco de Circuitos

J! InfoRequestSessionProfileQueries21
18.837MBMemory Usage41.99msRequest Duration
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