6 General Maintenance
166 5977B Series MSD Operating Manual
Figure 53 Assembling the EI HES
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Table 1 8 Parts list for EI HES (Figure 53)
Item number Item description Part number
1 Source finger grip G7002-20008
2 Filament block G7002-20019
3 Extractor lens (5)*, with 3 mm opening G7002-20061
4 Ceramic insulator for extractor G7002-20064
5 Entrance lens assembly, Extended, HES (1)* G7002-20165
6 Ion focus lens (2)* G7002-20068
7 Lens insulator/holder G7002-20074