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Old 5th January 2004, 08:50 PM   #1
maylar is offline maylar  United States
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Join Date: Jun 2003
Location: Connecticut
Default hipass/lowpass filters

Any schematics out there for adjustable hipass and lowpass filters using tubes? Not just bass & treble controls or boosters, but 2nd order Butterworth or Linkwitz-Riley filters.
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