Purpose: Low frequency power amplifier.

用途： 用于低频放大。

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PNP epitaxial silicon transistor. Low frequency power amplifier.

PNP外延硅晶体管。低频功率放大器。

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Frequency power head, adjusting speed arbitrary, wide speed range.

变频动力头，转速任意调节，作用范围广。

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In the future, the product line will also include high-speed radio frequency and power-line connectivity solutions.

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In 1997 the National Research Council issued a major report on the health effects of exposure to power frequency electromagnetic fields (EMF), such as those due to electric power lines.

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Interestingly, the movement includes many who still believe that the lower frequency radiation from power lines and electric appliances and motors also poses a cancer threat, in spite of the fact that 30 years of research has shown no effects.

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