Патент USA US2129076код для вставки
s?jizt. 6, 19-38. _ WIENECKE ‘ 2,129,076 TUBE FOR SHORT WAVES Filed March a, 1935 inventor : 2,129,075 Patented Sept.'6,1938 UNITED STATES PATENT otter. 2,129,076 TUBE FOR SHORT‘ WAVES Bruno Wienecke, Berlin, Germany Application March 8, 1935, Serial No. 10,046 In Germany March 13, 1934 2 Claims. (Cl. 250-275) In tubes for short waves, both for transmis sion as well as for amplifying purposes, it is the leads to the electrodes as short as possible. In the case of comparatively long electrodes the leads should be taken to the middle, so that the natural wave will be as short as possible. According to the invention, this is performed in the case of the-grid by the fact that the lead thereto is taken to its middle through an open ing in the anode. In Fig. 1, l is the cathode, 2 the anode, and 3 the grid, which is connected at its centre at one or, as illustrated by way of example, at two points with the leads 4 through openings in the 15 anode. The anode is led out for example ver tically thereto at 5. Figure 2 is a horizontal cross-sectional view through the cathode I of Fig. 1. I claim: 7 l. A tube for short waves comprising a cath ode, a grid, and an anode, two leads connected to the centre of said grid and passed through two openings in said anode, said leads being di rected towards opposite sides. 2. An electronic tube for very high frequencies comprising a bulb, a cathode, a grid and an anode, two leads connected to the mid-zone of 10 said grid and passed through two openings in the mid-zone of said anode, said grid leads being directed towards opposite sides, these leads and the leads or said cathode and said anode passed out of the bulb in three directions spaced per 15 pendicular to each other. BRUNO WIENECKE.