>Rich says:
>
>>>Because a tube with the plate parasitic resonance BELOW the grid >>parasitic
>resonance doesn't oscillate,
>
>>semi-true.
>
>No, Rich, totally true. While that condition is valid, it doesn't and can't
>oscillate. This is 1920's technology - see Mr. Miller (his name, not his
>occupation).
In the MLA-2500, the 1/4 wave anode resonance is below the grid
resonance. However, the 3/4 wave anode resonance is above the grid
resonance. This was the same amplifier that produced the two tubes which
Eimac said died from gold-sputtering.
>
Murphy was right about things being more complicated than they look.
later, Peter
- Rich..., 805.386.3734, www.vcnet.com/measures.
end
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