sg45Discover the Sma SJM-SG45 at Guitar Gallery South Africa—crafted with solid Adirondack spruce top, solid mahogany back and sides, LR BaggsSG45 Datasheet. Part #: DCR818SG45. Datasheet: 109Kb8P. Manufacturer: Dynex Semiconductor. Description: Phase Control Thyristor. 26 Results.