| 摘要 |
A switching cct. operated with low control current and producing a large volt. was composed of two ccts. in parallel. One cct. was coupled with the emitters of Tr.(Q1) and (Q2) and the other was coupled with the bases of Tr. (Q3) and (Q4). Posi-D.C volt. (B+) was applied to the juncture of the collector of Tr.(Q1),(Q4) and emitter of Tr.(Q3) through the const. current switching cct. (I1) and then ccts. (I1),(I2) were switched simultaneously by the control signal.
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