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Preamp PI-filter circuit
Preamp PI-filter circuit
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Old 18th February 2002, 05:57 AM   #1
Serow is offline Serow  Canada
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Join Date: Feb 2002
Location: Regina, SK, Canada
Default Preamp PI-filter circuit

Here is a circuit I have been working on for a +-24V 100mA power supply for a pure class A hybrid preamp. Any comments from the more experienced would be great. The ripple is very small, less than 1 mV according to the Duncan Simulator. The transformer is the Hammond 266J48 and the choke is a Hammond 159V.
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