Chris L Peterson wrote in
:

snip
Have you considered using a PC164C? You can turn off its
AGC.

Chris, there is a switch? I haven't physically seen a PC164C. The product
literature does not list it as AGC configurable. I have a friend who has
one and he did not indicate that there was a switch to turn AGC off and on.

Thanks - Kurt

A webpage on a modification test
http://www.saao.ac.za/~wpk/1004x/index.html