----------------------------------------------------------
                           Avionics-List Digest Archive
                                      ---
                     Total Messages Posted Tue 05/03/05:1
           ----------------------------------------------------------
 
 
Today's Message Index:
----------------------
 
     1. 05:11 PM - Terra TXN 920  (Mike Lehman)
 
 
 
________________________________  Message 1  _____________________________________


Time: 05:11:41 PM PST US
From: "Mike Lehman" <lehmans@sympatico.ca>
Subject: Avionics-List: Terra TXN 920

--> Avionics-List message posted by: "Mike Lehman" <lehmans@sympatico.ca>

Listers,

The old Terra TXN 920 has mechanical frequency selection by tiny pushbuttons
above and below each digit.  One digit does not change properly in either
direction.  The 2 buttons are stiff and the number usually moves only 3/4 of
the way to the next digit.  One com digit is also difficult but it changes
fully with a little jiggle of the pushbuttons.

There is no access to the switch mechanism or contacts without major
surgery.

I'm looking for some experience with this problem.  Should I try to get some
silicon spray or Corrosion-X/ACF 50 into the switch?  Other ideas?

Thanks,
Mike