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Audio Millivoltmeter

Audio Millivoltmeter

When performing any tests on an audio system, An AC millivoltmeter – calibrated in dB – with a range of 30V down to 3mV full scale (80dB range) would be extremely useful. Attach a microphone (electret mic capsules are quite good), and you have a relative sound level meter, even better if you have some way of calibration.

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