Dear @lewm : You only see my posts but don't really " read " it:
""" urious that you named the MAT02 and totally " weird " that you think I’m used in the Essential.
That matched bipolar pairs along the MAT03 were used in the late 80’s by ML and even that are good devices are not what we were looking in our near " perfect " Essential design and that’s why we took a very hard very hard task to choose individual discrete bipolars and not only that but we choosed/tested diferent manufacturers where even that almost all were made it the same did not sounds exactly the same. After the choice the hardest task was to have matched pairs that we can’t do it by our self, this task was responsability of a México University. No, not all similar bipolars sounds the same. Yes, it's more easy to handkle and to design a circuit with MAT kind of devices than single discrete bipolars, remember that single discrete bipolars has not the very high gain in the MATs and that was an additional issue to solve in the Essential design. """
""" we don’t use it any single chips in the circuit not even the discrete ones but the B&B buffer """
R.
""" urious that you named the MAT02 and totally " weird " that you think I’m used in the Essential.
That matched bipolar pairs along the MAT03 were used in the late 80’s by ML and even that are good devices are not what we were looking in our near " perfect " Essential design and that’s why we took a very hard very hard task to choose individual discrete bipolars and not only that but we choosed/tested diferent manufacturers where even that almost all were made it the same did not sounds exactly the same. After the choice the hardest task was to have matched pairs that we can’t do it by our self, this task was responsability of a México University. No, not all similar bipolars sounds the same. Yes, it's more easy to handkle and to design a circuit with MAT kind of devices than single discrete bipolars, remember that single discrete bipolars has not the very high gain in the MATs and that was an additional issue to solve in the Essential design. """
""" we don’t use it any single chips in the circuit not even the discrete ones but the B&B buffer """
R.

