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Wednesday, December 26, 2007

Amplifier of acoustic frequencies with preamplifier

Amplifier of acoustic frequencies with preamplifier



TECHNICAL CHARACTERISTICS:
Tendency of catering: 15V
Force of expense: 4,2Wrms in the 4W

Minimal signal of entry: 94mVp-p with preamplifier, 0,65Vp-p without the preamplifier.

Materially:
R1 2,2KW
R2 330KW
R3 4,7KW logarithmic potentiometer

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