https://detail.tmall.com/item.htm?spm=a230r.1.14.8.72c653fbR8xhRf&id=606357822679&cm_id=140105335569ed55e27b&abbucket=16
https://detail.tmall.com/item.htm?spm=a230r.1.14.1.72c653fbR8xhRf&id=606230613322&cm_id=140105335569ed55e27b&abbucket=16
the links are distributers. not manufacturer 6T51 have two version,glass
and ceramic-metal. same specs.
glass version is cheaper.
I'm sure it contact manufacturer, the price should lower,mayb less $100.
Hsu
Yueh Hsu <hsu4qro@gmail.com> 于2020年1月12日周日 上午10:28写道：
> The datasheet here http://www.boezk.com/download_en/FU6051_EN.pdf, its
> mu=48,not too bad. it is a cheap tube . the manufacturer's list price only
> $100+....
> Hsu
>
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