2N2728 Overview
2N2728 (GERMANIUM) CASE 7 PNP germanium high-current power transistors especially designed for switching and power converter circuit operating from low-voltage power sources such as solar cells, thermo-electric generators, sea cells, fuel cells, and 1. MERCURY SWITCH .08750 0·500 9.90 1.75V + SWITCHING TIME TEST CIRCUIT ----+-tll...----'----~ 6V 2-339.