About the article

Precision Headphone Amplifier


Designs for good-quality headphone amplifiers abound, but this one has a few special features that make it stand out from the crowd.
We start with a reasonably conventional input stage in the form of a differential amplifier constructed from dual FET T2/T3. A particular point here is that in the drain of T3, where the amplified signal appears, we do not have a conventional current source or a simple resistor. T1 does indeed form a current source, but the signal is coupled out to the base of T5 not from the drain of T3 but from the source of T1.
Downloading of this magazine article is reserved for registered users only.
Login | Register now!
Loading comments...