| 摘要 |
732,003. Thermionic valves. PHILIPS ELECTRICAL INDUSTRIES, Ltd. May 12, 1953 [May 15, 1952], No. 13231/53. Class 39 (1). [Also in Group XL (c)] The anode-cathode capacitor of a Colpitt's oscillator for a dielectric heater (see Group XL (c)) is formed by the anode of the valve and a copper shell 13 which surrounds the anode and is connected to the cathode. Specifications 705,788, [Group XXXV], and 731,950, [Group XL (c)], are referred to. |
