[AMPS] Oxide heater lifetime

[measures]

>
>......  Apparently, if the maximum current
>capabilities of these cathodes are "pushed", you can actually strip
>oxide from them.  .....

Photo of overdriven/stripped cathode in Sept./October, 1990 *QST* article 
"Parasitics Revisited".  The oxide flakes created a grid/cathode short 
circuit.  

cheers, Dave.  

-  Rich..., 805.386.3734, www.vcnet.com/measures.  


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