At 11:06 AM 7/5/2001 -0700, Billy Ward wrote:
>Greetings Group,
>
>I will ask this question at the chance of being made to look ignorant!
>
>With the high price of tubes, I wonder if anyone has ever invisioned a
>homebrew project to actually make the tube from scratch? I know that it
>would be a little more than the average ham is used to working with but
>why could we not use something such as stainless steel tubing and come up
>with a decent power transmitting tube. After all, someone once did that!
>
Virtually impractical to do in a home setting Billy. Not impossible, but
largely impractical. The cleaniness requirements are high and the
equipment needed to produce a hard vacuum is expensive. And then there's
the unique materials required, etc, etc.
Phil
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