[Laser] discrete vs op amp sensitivity

[F1AVYopto at aol.com]

Hello Art

>I did want to let the group know that I ran across so  me 
>additional information on this topic in another mailing list and that  
>I'm following that discussion as well. It seems the BAD thing about a  
>conventional op amp front end is that the resistor that determines  
> the bandwidth/gain also contributes noise because this resistor is  
> large and because it is in the gain determining path of the circuit.  
> This is a problem that the PGP front end doesn't have, whether it  
> tips the scale in favor of a PGP type discrete FET front end or not  
> is still a big question.


Are you talking about the  Australian Optical_DX Yahoogroups ?
Yves F1AVY