Agilent Technologies 8510C Service Quick Reference Manual page 25

Like most displays, the CRT can be sensitive to large magnetic fields generated from
unshielded motors. In countries using 50 Hz, some 10 Hz jitter may be observed. If this
problem is observed, remove the device causing the magnetic field.
motion for degaussing the display.
Figure 3-2 Motion for Degaussing the Display
In an emergency, you can use a running electric drill or a pencil sharpener
NOTE
that draws one to two amps through its AC motor winding.
8510C Service Quick Reference Guide
Procedure 2. Degaussing (Demagnetizing) the CRT Display
8510C Adjustments
Figure 3-2 shows the
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