Here are the Patrick Troughton audio adventures that I own, listed in release order. Enjoy!
Patrick Troughton (1920-1987) -- played the Doctor from 1966-1969 -- http://en.wikipedia.org/wiki/Second_Doctor
The Early Adventures, season 4
4.4 - The Wreck of the World 
4.3 - The Morton Legacy
4.2 - The Outliers
4.1 - The Night Witches
Short Trips
Little Doctors (5.01)
The Way of the Empty Hand (5.10)
Lost and Found (6.06)
The British Invasion (7.8)
8.x - Last Day at Work
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Lost Story: The Queen of Time (#4.02)
Lost Story: Lords of the Red Planet (#4.03)