Kamis, 03 Mei 2012

skema TV Emitter




 D1- 1N914 diodo de silício
Q1- Q2-Q3-2N3904 transistores NPN
R1- R2, R11- 1KΩ
R3,R7- 1KΩ-Pot., horizontal.
R4,R9,R10- 10KΩ
R5- 47KΩ
R6- 75kΩ
R8- 4.7KΩ
R12- 75Ω (2x 150 em parallel) (opcional)
C1,C8-100μF, 16-V, elect.
C2- 2.2--μF, 50-V, elect.
C3,C6,C11,C14,c15-1nF, ceramics
C7,C9-2.2-pF, ceramics
C10-100-pF, ceramics
C12, C13-68-pF, ceramics
ANT1-Antenna
B1 battery 9v
J1,J3-Jack RCA, surface mount.
L1- inductor 0.15-mini 0.15mH
L2, L3-inductor mini de 2.2mH
L4- 0.14- 0.24-μH adjustable, ferrite.
S1-SPST, Push-Button, NO.
T1- 4.5-MHz R Transformer

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