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那位大侠帮忙翻译一下:
Cascode Amplifier
The Cascode amplifier works by realizing all of the bottom triode's transconductance by isolating it from the plate resistor and load resistance. This allows the grid to fully control the current through the triode and thus define a gain across the plate resistor. This increased gain, which can easily exceed the amplification factor of the triode, comes at a price; increased distortion and virtually no power supply rejection (PSRR). This circuit enjoyed great popularity during the 1980's. Today, the circuit is not as popular, as it often makes for a more transistor-like sound. Still, it remains a good choice when low input capacitance or high gain is required.
内容来自:tubecad
http://www.glass-ware.com/tubeca ... t_Descriptions.html |
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