variable-capacitance pickup

可变电容器微音... ... ) variable-capacitance pickup 可变电容拾音器 ) preset capacitor 预调电容器，微调电容器，半可变电容器 ...

可变电容器微音效应,microphone... ... ) microphonic condensator 微音电容器 ) variable-capacitance pickup 可变电容式拾音器 ...