Jerry:

Yeah, it's probably normal, but it may mean that you are over-driving the 
mic circuit.

I used to have a 751, and I was told that my best mic gain level was when 
the little indentation on the front of the mic gain knob was at the 9 
o'clock position.  You just find the indent with a thumb-nail, and take it 
up to the 9 o'clock position.

Not too technologically sophisticated, but hey, it worked, and kept me out 
of trouble most of the time.

73 from Tom Behler: KB8TYJ

----- Original Message ----- 
From: "Gery Gaubert" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Wednesday, August 01, 2007 4:08 PM
Subject: mic gain on ic751a


> Since I can't see the needle for the mic gin, I turned it gradually.
> After a certain poing, I can hear my audio through the external speaker
> that I have connected to my radio.  Is this normal?
>