Figure 4: Changing the capacitors.
6.4 Series inductor.
The turn selector bar is identified by
in Figure 5. For the initial setup (section
6.1) this
is the only bar that is used and should be screwed onto the correct set of tabs to select
the desired number of turns on the series inductor. The front position selects two turns
and the back position ten turns (
in Figure 5). Tighten the bar into position using the
mounting screws.
The shorting bars have to be used for finer adjustment of the series inductance during
the tuning (section 6.2.) of the heat station. Table 1 indicates the positions of the turns-
bar and shorting-bars for changing the turns in quarter turn steps. Move left on the table
to decrease the inductance, and right to increase the inductance. Always place both the
shorting-bars in the same position.
Example: If the initial setup was for ten turns (shorting bar not installed), and the turns
need to be decreased with a quarter turn, install the shorting bar in the bottom (B)
position (
in Figure). Moving the shorting-bar to the middle (M) position will decrease
the turns with another quarter turn, and to the top (T) position with another quarter turn.
If the shorting bar reaches the top (T) position and the inductance (turns) still needs to
be decreased, remove the shorting bar completely and move the turns bar forward, e.g.
from the ten turns position to the nine turns position.
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