>R L Measures wrote:
>> As I see it, the lateral EMF from grid-I during a
>> parasite bends the
>>filament sideways, in some cases causing it to touch the
>>grid.
>
> But despite repeated requests, you have never provided a
> detailed
> explanation for this bending force, in terms of the
> familiar "left-hand
> law" that makes an electric motor work; or identified what
> is special
> about "parasites" that could cause this behaviour.
I calculated that force long ago based on the saturated
emission limits of the 3-500Z.
The force was in the order of several grams. Normal
operating forces caused by AC in the filament were higher.
73 Tom
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