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500 Circuitos Prácticos. Parte 1-FREELIBROS.ORG

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A K I .

CUS ALTA

tMP&D.

f 5 v

SILENCIADOR

DE RUIDOS

TRANSISTORIZADO

Cfíf. 2 . /SV34

C & 3 .4 : 1*/S4

Q / . Q 2 2 n 3 S . 2 m 2 9 9 »

2 /V 2 3 3 A

TOCADISCOS CON TRANSISTORES PARA 220 VOLTS

Potencia: l W att

G anancia: 68 dB

Zumbido: —55 dB con

pecto a l W .

res-

Sensibilidad: 600 mV.

C l , C2: 1200 pF

C3: 005 uF

C 4: 100 iiF/25 V.

C 5: . 1 pF

C6: .01 [lF

C 7: 250 uF/12 V.

C 8: 50 pF/150 V.

R l: 56 KQ, 1/2 W

R2: 3 MQ, (bajos)

R3, R9: 68 KQ, 1 /2 W

R4: 0,33 MQ, 1/2 W

R5: 1 Mfí (agudos)

R6,R10; 10 KQ, 1/2 W

R7: 2 MQ (deriv. 1 MQ)

R 8: 180 KQ, 1/2 W

2 N 2 6 / 4 4 0 2 6 4

Rl 1: 33' KQ, 1/2 W

Rl 2: VDR

Rl 3: 220Q, 1/2 W

R l4: 250 Q, 3 W

T: 2500 Q /3,2 Q

AMPLIFICADOR

DE

450/240/170 mW

CON

TRANSFORMADOR

CO N

M ED IO S EC U N D A R IO

P arlan te : 5 Q

P s a lid a : 170 mW

Consumo total: 60 mA

,, sin señal: 10 mA

P arlante: 3 Q

P sa lid a : 2 40 mW

Consumo to tal: 82 mA

„ sin señal: 10 mA

C O N T O D O EL

S EC U N D A R IO

Parlante: 5 Q

P sa lid a : 450 mW

Consumo to tal: 160 mA

42

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