The operating current and diode temperatures of the 70 W amplifier were adjusted to improve the
output of the pre-modecleaner.

    The first two plots show the increase in diode temperatures and the corresponding increase
in pre-modecleaner transmitted power.  The third plot shows the pre-modecleaner transmitted power
and reflected power over the same time period.  The fourth and fifth plots show the output of the
70 W amplifier as the diode temperatures and diode currents were manipulated.

    Whilst the diode temperatures and currents were varied, the output of the 70 W amplifier did
not vary appreciably.  The pre-modecleaner output increased by ~2 W and the reflected power decreased
by ~1 W.

   With the diode current and temperature tunings, the output mode of the 70 W amplifier is
better matched to the pre-modecleaner and didn't not significantly affect the output power of the amplifier.