例句與造句

1. The "'EL34 "'is a thermionic valve or vacuum tube of the power pentode type.
2. The beam tetrode design was also undertaken to avoid the patents which the giant Philips firm held on power pentodes in Europe.
3. The lower-power noval base EL84 power pentode was widely used in less expensive 10-watt ultralinear power amplifiers, still of high fidelity.
4. The application of the five-layer ( Al-Fe-Cu-Fe-Al ) material to anode manufacture solved the problem of irregular heat buildup at high power levels in the anode plates of power pentodes, tetrodes, and triodes.
5. Most modern valve guitar amplifiers use a class AB1 push-pull circuit with a pair of power pentodes or beam tetrodes, 6L6 or EL34 but occasionally KT88, 6550, or the lower-power EL84 in " Ultra-Linear " connection.
6. It's difficult to find power pentode in a sentence. 用power pentode造句挺難的
7. The impedance of the loudspeaker on the secondary coil of the transformer will be transformed to a higher impedance on the primary coil in the circuit of the power pentodes by the square of the turns ratio, which forms the " impedance scaling factor ".
8. In this system special-quality tubes ( e . g ., for long-life computer use ) are indicated by moving the number immediately after the first letter : the E83CC is a special-quality equivalent of the ECC83, the E55L a power pentode with no consumer equivalent.
9. A number of different KT tubes were later marketed by M-OV . Some, but not all, were versions of existing American beam tetrode tubes or European power pentodes, such as the KT66 ( 6L6 ), KT77 ( EL34 and 6CA7 ), KT88 ( 6550 ), and KT63 ( 6V6 ).
10. Although power pentodes and beam tetrodes have some differences in their principles of operation ( the beam forming plates of the beam tetrode or fifth electrode ( 3rd grid ) of the pentode, both serving to hinder the return of unabsorbed electrons from the anode ( or plate ) to the 4th electrode ( 2nd grid ) ) and have some internal construction differences, they are functionally closely equivalent.
11. It was developed to eliminate the need for a driver tube in radios, and has rather more gain than is usual in a power pentode, producing full output from a relatively small drive signal ( the EL84 requires less than 4.4V rms for 5.7W output compared with 9V rms for 5.5W from a 6V6 or 8.7V rms for 11W from an EL34 ).
12. A few special-quality tubes did not have a standard equivalent, e . g . the E55L, a broadband power pentode used as the output stage of oscilloscope amplifiers and the E90CC, a double triode with a common cathode connection and seven pin base for use in cathode-coupled control ) grid by changing the voltage on the third grid, in early computer circuits ( similar in function to the U . S . 6AS6 ).