5 - 7
Figure 5.1-16 Replacing the Cartridge Filament Spacer
Fasten the Wehnelt onto the cartridge filament clockwise. Incorporate it into the electron gun
after verifying there is not play. Align the guard ring pin with the holder groove of the cartridge
filament, and insert it vertically.
Figure 5.1-17 Wehnelt and Cartridge
Filament
Figure 5.1-18 Cartridge Filament
Insertion Part
Figure 5.1-19 Inserting the Cartridge Filament
Pin
Guard ring
Holder groove
Cartridge
filament
Spacer is used to adjust the image brightness.
Discard
(Cartridge filament, spacer)
Reuse (Wehnelt)
If broken: