>
>>>>...At -6000v, the anode-grid leakage
>>>>was 0uA. At +4000v anode-grid leakage was 10uA - rapidly increasing at
>>>>higher potentials.
>>>>
>>>>It is my opinion that 8877 s/n HSZ 501 probably died from gold boiling
>>>>off of the grid.
>>>
>>>
>>>Can someone educate me (and others)? I know very little about power grid
>>>tubes, although I do know some physics.
>>>
>>>What's the physical explanation of this rectification effect -
>>
>>Loose gold meltballs are repelled from the anode insulator by negative
>>potential. Positive anode potential attracts gold to the insulator.
>
>
>I'm not arguing; but I need help understanding. I can understand why a
>field-emission rectifier works; it's because electrons come in just one
>polarity. (At least, in normal matter, not antimatter :-) But I don't
>understand why little gold balls would exhibit polarity.
>
They don't. Just like bits of paper, they are attracted to positve.
cheers, Chuck
- Rich..., 805.386.3734, www.vcnet.com/measures.
end
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