[Hallicrafters] Question for HT-44 users.

[Waldo Magnuson]

    I have a 40 m dipole up and have always had my HT-44 tuned to 40 m 
where it tunes up with no problems.  A friend about 20 miles away and I 
were going to practice CW but only very weakly able to contact each 
other on 40 m.  He put up a tower with a Force 12 on the top so we 
decided to try 15 m as my 40 m dipole should work on 15 m.
    I can't seem to tune up on 15 m.  The FINAL and DRIVER tuning jump 
all over and the power out goes to over 100 w reading even with RF 
level at zero.
    I guess it sounds like oscillation problems.  Any HT-44 users have 
experience on 15 m and 40 m with their set and how they tune up?.  Any 
suggestions on what to look for or try would be welcome.  Thanks.
73,  Skip  W7WGM