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Old 27th July 2008, 09:03 PM   #1
Stee is offline Stee  Italy
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Join Date: Jul 2005
Location: milan
Default The Perfect Hybrid Amplifier

hello

my last discovery is a china amplifier
Headphone Amplifier PCB w/parts
original with IRF610-9610

http://www.diygene.com/servlet/the-4...arts%2C/Detail

modified with a pair of "little" bipolar ending (Motorola 8A)
very good hybrid - better then tube input

see this schematic (is not the original one)
you need thinking fet on bipolar position and viceversa

attention - before change final devices need decrease biasing (1,2V)

http://www.esafono.it/pha.jpg
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