| 摘要 |
<p>The invented electron tube cathode system, particularly for sound amplifiers is secured on electrically non-conducting plates (9) and is formed by at least one cathode (2) that is connected to a glow circuit and in emission region (5) of its surface it is provided with a layer of emission-active material. At least a portion of the cathode (2) surface out of the emission region (5) is provided with at least one strip (4) of thermally conducting material. The strips (4) disposed on at least two adjacent cathodes (2) are connected with a transverse connecting element (6), whereby they form a U-shaped sheet part (7).</p> |
