Just bought an old sears roadtalker 40 ssb mobile(old analog dial).The problem is with the audio.When I key the mic there is a short delay before it starts modulating.The same is true for the receive audio,When I un key it takes a second for the receive audio to come in.I tried the PA and the audio is instant.I'ts not really a big deal but kinda bugs me that sometimes my first words get cut off somewhat.Any ideas where to look? I'm thinking maybe something in the audio section.Bad cap or?