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20_Hz_HIGH_PASS_RUMBLE_FILTER

2017-02-25 09:42  
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20_Hz_HIGH_PASS_RUMBLE_FILTER
Second-order rumble filter for phonograph amplifier has 1-dB peak and 20-Hz cutoff frequency. Design uses large resistance values to permit use of smaller and lower-cost capacitors.-D. Lancaster, Active-Filter Cookbook, Howard W, Sams, Indianapolis, IN, 1975, p 191-192.