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"Dave Platt" wrote in message
... If we assume a tuner input impedance of 4.7k (a fairly conventional value), and 20 Hz, we'd find that a cap whose impedance equals this at 20 Hz is C = 1 / (2*pi*20*4700) which works out to about 1.7 uF. Using a cap of this value would result in a rolloff of around 6 dB at 20 Hz. Okay, by your logic... my amp (note my previous post) has an input impedence of (I calculate) 44.634k. So using your formula C=1/(2*pi*20*44634) I get a value of 0.178uF. And my spec cap is 0.15. Pretty close I'd say. My 0.22uF's that are in there should be good? |
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