The black cover has been removed to show alternator rectifier/regulator assembly. The alternator contains field
coil diodes (low current) (Item 1) [Figure 60-31-2], grounded heat sink (Item 2) [Figure 60-31-2] & [Figure 60-31-3], B+ power heat sink (Item 3) [Figure 60-31-2] & [Figure 60-31-3], regulator (Item 4) [Figure 60-31-2] & [Figure 60-31-3], and four pair of large power diodes (Item 1) [Figure 60-31-3] on the underside of the rectifier.
NOTE: The rectifier/regulator assembly has been removed from the alternator and flipped over for component identification [Figure 60-31-3].
