Bottom (Labeled).
Since I am using batteries I needed to adjust my monitor to fit the voltage supplied. By trial and error, these are the adjustments I found.
CAUTION!
Though this is a miniature CRT it still has very high CRT voltages inside the case. When adjusting the focus, I accidentally grounded my hand and received a small shock (the shock was only enough to put my pinky to sleep for a half hour).
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