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What happens if a capacitor in an audio amplifier becomes open circuit and how does this affect the output?
Ahmedbillalgp4966
Without knowing the location of the capacitor in the amplifier (which you do not give) no specific answer can be given, only possibilities assuming various locations (e.g. input coupling, power bypass, bias networks, interstage coupling, virtual grounding of shields). Each will have one or more characteristic symptoms it could produce in the output.
Wiki User
∙ 8y ago
Wiki User
∙ 8y agoIt all depends on exactly where the capacitor is located in the amplifier circuit and what it's function is.
As part of the input, open circuit would prevent all signal getting through and therefore no audio at all.
As part of the power supply decoupling, it may allow ripple or hum to get through, or cause distortion at loud passages.
As part of the amplifier biasing, it will cause a drop in amplification and make it very quiet.
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