I have a Collins KWM2-A HF transceiver for service (early model, schematic attached) and I wonder if the AGC can be made to have slower decay by a simple modification.
Collins has released some modifications and included them in the later models. However all of these require serious work to be done.
I am not exactly familiar of how the AGC is set, but I suspect I can add/alter a capacitor/resistor combination somewhere and make the AGC having slower response, especially in the decay.