preamplifier stage
... differential preamplifier 差分式前置放大器 ; 差动前置放大器 preamplifier stage 前置放大级 preamplifier noise 前置放大器杂讯 ...
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特高频前置放大级 UHF preamplifier stage
甚高频前置放大级 VHF preamplifier stage
前置级放大 pre-amplify
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通过改变前置放大级的阴极电阻或者屏极电阻，是不是就可以改变增益或者音色？
Can I change the preamp cathode or plate resistors to change the gain or tone of my amp?
youdao
前置放大电路设计了量程自动切换的电阻反馈式两级放大。
A range automatic transfer is designed for the preamplification system with resistance feedback.
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