Monday, December 23, 2013
Addition variable gain amplifier
Variable gain above is a circuit that is used to increase signal strength in dB , needed in a circuit of gains if the range is less reinforcement amplifier input signal, and the required input signal must be high enough so that the circuit is less then the maximum amplifier sound output. For the use of gain can be placed and connected directly to the input amplifier.
R1___15K
R2___4K7
R3___15K
R4___4K7
R5___180R
R6___2K
RV1__10K Trim
U1___NE5532
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