Bob -
 The Vaseline on the pivot helped a lot.  The noise is still there, but I 
think I can live with what's left.
 I may try some of Stuart's padding suggestions.  The noise is from the 
button and not the switch and padding out the pivot point and where the 
sides of the button brush the case would do the trick, but there is 
little clearance in either spot.
Thanks for the help, Bob and Stuart.
73 de K1ESE
John
On 1/29/2013 1:15 PM, Bob McGraw - K4TAX wrote:
 I have two of them.  Found that if I carefully opened the case {watch 
for spring loaded parts} by removing 3 screws in the back, and using 
Vaseline to lubricate the PTT button pivot at 2 places {front and back 
half} and the tip of the bar that activates the switch the issue is 
corrected.  A flat toothpick is ideal for applying a very small amount 
of the lubricant.  I don't advocate using any type of spray lubricant 
under any circumstance.
73
Bob, K4TAX
----- Original Message ----- From: "John Huffman" <hjohnc@gmail.com>
 
I just received a new 703 microphone to use with my Orion.
 The audio is fine.  But, the push to talk button is very loud over 
the air.  You can hear the button moving when you close the circuit 
and when you release the button.
  
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