If you instead meant a (e.g., vas deferens in biology) or “schedule tube” (pipe specification), please clarify. But based on electronic engineering context, I’ll assume:
Heater not shown for clarity (usually separate AC or DC supply). a schemale tube
: These are primarily stainless steel tubes used to eliminate "torque converter shudder"—a common vibration issue in automatic transmissions. If you instead meant a (e
| Element | Schematic Symbol | Function | |---------|----------------|----------| | | Zigzag line (often at bottom) | Heats cathode to emit electrons | | Cathode | Horizontal line (often with a “tail” or “U” shape) | Electron source | | Grid (Control) | Dashed or solid zigzag line between cathode & plate | Modulates electron flow (like transistor base) | | Screen Grid (tetrode/pentode) | Second dashed line | Reduces grid-plate capacitance | | Suppressor Grid (pentode) | Third grid | Prevents secondary emission | | Plate (Anode) | Top horizontal line (often with a right-angle bend) | Collects electrons | | Envelope | Circle connecting all elements | Mechanical & vacuum boundary | | Element | Schematic Symbol | Function |