| 摘要 |
Electrical circuitry for generating pulses having sharp dropoff characteristics. The circuitry comprises a power transistor, a voltage source connected to supply current through the collector-emitter circuit of the transistor, a degenerative feedback loop connected between the emitter and the base of the transistor, switching means to initiate turn-on and turn-off of the transistor, and means for activating the loop upon initiation of turn-off.
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