[AMPS] Blown TL922A... What to do?

[measures]

>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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