Ol , gvt box ecc88 6dj8 siemens , wg . , 6sl7gt美国sylvania厂制,黑屏1960年代古典真空管
2.
Of 1960 s mfg . , original box and print cv378 mullard , u . k . , ol , gvt box 6v6gt美国sylvania英国marconi厂制,黑玻璃管, 1960年代之古典真空管
3.
So , with the exception of the later sylvania 12ax7as , all these tubeshave essentially the same characteristics - the i vs v curves 所以，除了问世时间稍后的喜万年12ax7a ,所有的这些胆管都具备基本一致的电气特性- -屏压、流曲线。
4.
Interestingly , sylvania , the other first - tier american tubemanufacturer , made only a long - plate 12ax7a that had more ribbing andreinforcement than the old long - plate 有趣的是另一家一流美国厂商喜万年，只生产长屏12ax7a ，但和老的长屏相比，新长屏增加了更多的支架和加强筋。
5.
During the period , the group entered into agreements with xerox and sylvania , and added these two brands to its existing list of proview , emc and mag labels 回顾期间，集团分别与xerox及sylvania达成协议，由集团制造该品牌之显示器，令集团之品牌增至五个原有的三大品牌为proview emc及mag 。
6.
In addition to its globally accepted house brands , proview and emc , the group also holds licenses to manufacture and distribute display solutions under motorola , xerox , mag and sylvania brands and is commissioned to produce on an odm basis for lenovo , fujitsu siemens , a - open , acer and other world leading brands 除了集团自有品牌proview及emc外，集团亦取得经销权，产销motorola xerox mag及sylvania品牌之显示器又以原设计制造形式，为包括lenovo fujitsu siemens a - open acer及其他全球领导品牌生产显示器。
