hello
my last discovery is a china amplifier
Headphone Amplifier PCB w/parts
original with IRF610-9610
http://www.diygene.com/servlet/the-474/Headphone-Amplifier-PCB-w-fdsh-parts,/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
😎 🙄
my last discovery is a china amplifier
Headphone Amplifier PCB w/parts
original with IRF610-9610
http://www.diygene.com/servlet/the-474/Headphone-Amplifier-PCB-w-fdsh-parts,/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
😎 🙄
