>Rich AG6K wrote:
>> The idea that a tube with a fixed emissive limit can be
>> "upgraded" to provide an "advantage" by upping the anode
>> dissipation rating is hipe
>
>Do you think that when the manufacturer has upped anode dissipation,
>we could increase anode volts and get more Po for same Ia?
>
rather doubtful. the 3-400Z and the 3-500Z both have a 4kV anode
potential rating.
>At least we can pray that grid/filament shorts are designed out
>of the new Svetlana tube!
>
not likely, Martin. The filament and grid would be virtually identical.
The difference is probably in the fin design.
Rich...
R. L. Measures, 805-386-3734, AG6K, www.vcnet.com/measures
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