George KB2Z wrote:
>Morning all,
>I have a pair of Eimac 3-500 tubes I would like to sell and would
>like suggestions for identifying them.
>They are putting out over a 1000W cw. I dont want to sell them to
>have an un-ethical person send back as bad, saying they are no good.
>I sold a new tested pair of tubes a few years back and had that
>pulled on me. Once bitten, twice shy.
>Thanks in advance, George KB2Z
>
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>
maybe use an etching tool at the top of the anode connector? or at the
top of one of the pins
anything like a permanent marker could be wiped off.
perhaps a little bit of enamel nail polish ( they come in weird colors
that cannot be duplicated easily)
at the bottom of the tube or something.....
Anyone have any other ideas?
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