DELCO DTS-401 / DTS401 (NEW IN BOX) DELCO DTS-401 / DTS401 (NEW IN BOX) DISCONTINUED BY MANUFACTURER, TRANSISTOR, 300V, 2AMP, 75W, TO-3 PKG. The product is used surplus. Radwell is not an authorized surplus dealer or affiliate for the Manufacturer of this product. byJuly 5, 2026