The power supply is likely to be dual power supply,supplying both positive and negative volts to the amplifier circuit.In that case it must provide positive and negative voltages to the circuit.Then the polarisation is wrong.I think the amplifier uses some operational amplifiers which may...
Is the binary to GRAY convertor is the same as BCD to GRAY convertor?What is the logic for BCD to GRAy convertor?Is there an IC for BCD to GRAY convertor