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西电300B 真空管开箱 [复制链接]

1#
难得有少量现货可以拍照!西电300B真空管。
收藏珍典,音响界绝无仅有的一代投资理财产品!
每对对装匹配,均有独立封条和防伪标签。


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2#

每盒对装300B,都是一对匹配好然后对装独立编码.独立盒装,独立编号封条和防伪二维码





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3#
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4#

对于96年版的300B,STEREOPHILE的原文如下

happened to meet Western Electric's owner/director, Charles Whitener, at the London HiFi Show last September. I told him about our amazement when we found out that the WE tubes clearly needed more hours of burn-in than the others; and about our confusion over the first pair of WEs, which were supposed to have been burned-in at the factory but didn't sound right until after we'd given them another 200 hours. Whitener confirmed our guess: Other than a standard 24-hour test, the first pair of WEs hadn't been burned-in at all. WE never does that. (The guy who told me that they do no longer works at WE.)

Whitener also explained to me why WE tubes take a longer time to break in than other brands. As in all other makes, the coating (footnote 1) on a WE300B's heater contains barium oxide and strontium oxide, but WE does not add the usual small amount of calcium oxide. The calcium acts as a kind of pep pill in activating the barium, meaning that calcium-doped 300Bs reach their peak rather quickly, within 100-200 hours, and thereafter (according to Whitener) degrade slowly. Though the WE takes considerably longer to reach its top level of performance, its absence of calcium is said to maintain that high level over the tube's entire lifespan.

As of now, Western Electric suggests a minimum of 500 hours' burn-in, that recommendation to be included in their future literature.—Peter van Willenswaard
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5#

根据Charles所说,西电复产的300B需要200-300甚至500小时后才会完全激活。不过由于使用时间超过4万小时,这几百小时的磨合期真的不算什么。

记得在购买后90天内把附带的质保申请填好并用回邮信封寄回美国的西电工厂激活5年保用服务。

But if you want the best, there's only the Western Electric.

stereophile  Peter van Willenswaard 如是说

西电300B随管的保用证都把保用条款写清楚的了。把使用机器的品牌型号,购买日期等细节填好,有一个回邮信封的。
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6#


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7#

极品胆管,价格不菲啊
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8#

不知新出的效果如何?买过的兄台请讲讲
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9#

香港用戶眾多,都非常正面。
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10#

我看香港的hifi论坛那边都是4个一起买,胆管颜色好靓啊
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