एक अनाथ पृष्ठको रुपमा रहेको, अन्य विकिपृष्ठसित नजोडिएको वा एक-दुईवटा लेखहरूसँग मात्र जोडिएको हुनसक्छ। कृपया सम्बन्धित लेखहरूलाई यस पृष्ठ सूत्रसँग जोड्न सहायता गर्नुहोस्
Figure 1: Closeup of a diode, showing the square shaped semiconductor crystal (black object on left).Figure 2: Various semiconductor diodes. Bottom: A bridge rectifier. In most diodes, a white or black painted band identifies the cathode terminal, that is, the terminal that conventional current flows out of when the diode is conducting.Figure 3: Structure of a vacuum tube diode. The filament may be bare, or more commonly (as shown here), embedded within and insulated from an enclosing cathode