Wilmer威馬 在 2004-7-27 20:16:35 发表的内容 : 1) 胆最伤是每次接通电源时的脉冲,所以很多胆类机器也有慢热式的延迟开关。与其说拔走会省点寿命,我反而觉得长开不关可能更耐用。
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威馬兄说得没错,有的高级胆前级(象MATISSE FANTASY)特意采用小灯丝牛(绕组)在待机状态下给灯丝供电以保持恒温,
这是MATISSE的原文:
In Standby Mode, a small small secondary transformer is in circuit. This provides 6 Volts AC to the tube heater circult, keeping the tubes at a constant temperature. This reduces the stresses on the tubes when the unit is switched on, and dramatically extends the operating life of the tubes. (The tubes glow faintly when in Standby mode.)
You should leave your preamplifier connected to the mains at all times, unless you wish to move or store it.
最后这句:你应当把你的前级时刻插在电源上,除非你想搬走它或收藏起来。