[AMPS] Shunt regulated high voltage psu

[rich]

>
>Rich said:
>
>>Pentodes are even less sensitive.
>
>Verty true - actually, anything with a suppressor grid. Which was why 
>pentagrid
>convertors operated with the suppressor at ground gave less damping to the IF
>transformer in the plate. Showing age now, though aren't we?
>
€  I am a codger.  

>More seriously, is there a reason why there were relatively few pentode high
>power tubes, as opposed to tetrodes? 

€  Building something large with a suppressor grid is apparently 
difficult.  Pentode sockets are pretty complex.  There are seemingly no 
pentodes with handles.  

>Possibly because the lower plate resistance
>wasn't a problem with tank circuits having a relatively low Q?
>
cheers, Peter

-  R. L. Measures, a.k.a. Rich..., 805.386.3734,AG6K, 
www.vcnet.com/measures.  
end


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