HLF30AB - Stand alone or implemented Headphone Amplifier
Usually is a stereo system equipped with a under moderate headphone amplifier,
if any exist at all? The source of the sound is mostly from the same connection
as the speakers use. Quite often, signal and noise ratio is bad and the noise is
audible. In addition, it can be nice to be able to adjust the volume for speakers
and headphones separately. It can also be a surprise to be hit by a violent
sound volume, if you happen to unplug the headphones under a listening.
This headphone amplifier is built of discrete components and can be designed in
many ways. You can choose to build it into a stereo amplifier or allow it to
stand next to your stereo. I have used this unit for years and it still works
If you want to look closer on this thing you can download it here:
In the zip-file can you find everything required to implement it (manuals, diagrams and PCB-files)
- except to realizing it.