采用电子消弧电路取代传统的消弧继电器，提高了消弧延时的精确性和可靠性。
It also indicates that the accuracy and reliability of time retardation for arc extinction can be increased by replacing traditional extinction relay with electron extinction circuit.
每种电源都带有延时继电器，它在电子管进入稳定工作状态之前使输出静音。
Each supply has a timed relay that mutes the audio output until the tubes stabilize.
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