Does anyone know what the typical output level of the first AF amp should be for a strong signal? I built the AGC amp shown in the message by Joe Puma and the AF output begins to distort with an input of 300mv to 350mv RMS. I haven't yet built a spreadsheet to see how much AGC action is provided as the AF level goes up. Maybe I can get to that tomorrow. I don't have any way to sweep the amplitude of the input AF, only the frequency. So I'll have to build everything up manually a point at a time in order to see what compression is provided.?
