Hi, again again...
In the next week i will start put a project up on my site, where i will use the BC847BPN(PNP/NPN) in a buffer.
At the same time i will make room for single transistor in SOT23 and TO92 so that i will be able to compare different BJT's in the bufferstage.
It is actually a preamp(s). A doublesided board with everything on it to get a balanced preamp with 2 sets of singleended inputs and 2 - 3 sets of balanced input. 1 set of balanced input and 1 set of singlended.
The controller is a AVR AT90S8515 or a AT89s8252. They are two different structures in programming. They both have a internal EEprom. They both can turn there oscillator OFF!
This one is going to be a costly project where i will use two WM8816 and AD8610BR as opamp, but with sockets for discrete opamps.
I think this one will be something for Paul Kaplan!?
But at first i will make a singleended preamp with a single input and a discrete buffer as outputstage. It will be designed around a PGA2310/PGA2311/CS3310.
It will be singlesided board. It will also be using the same ucontroller as the expensive one.
I am going to test the software on this one first .. It is basicly the same code. I will also do some pretest on the buffer : BC847BPN(PNP/NPN) versus other BJT's
Why i am telling this? to make a comparison on different parts like the BC847BPN(PNP/NPN) which Per asked for.
And to please Harry : Turn sims into realworld designs!
The simple preamp will be free to use by everyone. I will upload the code and PCB later (in a month or so!?)
Sonny