![]() ![]() IC1: NE5532, M5218P, OP Amp Dual General Purpose, 8-DIP IC1: TL074, Quad Low-Noise JFET-Input General-Purpose Op-AmpĬapacitors, Polypropylene (MKP), Polycarbonate (MKC) Related Posts Parts you will need BALANCE INPUT For example: Metal Film Resistors, Which is a low noise.Īll capacitors should be of high quality For example: polypropylene (MKP) or Polycarbonate (MKC) etc. You Just assembling equipment to the PCB correctly.įigure 3 The PCB layout and components layouts of Balance Input Pre Microphone Amplifier circuitįigure 4 The PCB layout and components layouts of Unbalance Input Pre Microphone Amplifier circuit ![]() The second section, the unbalance input as Figure 2 will see that the simple circuits by have two low noise ICs to connected together as the amplifiers circuit from microphone to high amplitude as need.įigure 2 Unbalance Input low noise pre microphone amplifiers The output from IC3 will be increased again with IC4 to get the output signal as need. Thus, noise signal and various hum will be rid go away. And send to pin 9-10 of IC3 that act as the differential amplifier. The input signal will be sent to pin 3 and pin 5 of ICs, to increase signal. Figure 1 Balance Input Pre Microphone Amplifier circuitīalance Input Pre Microphone Amplifier as Figure 1.
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