>
>Rich says:
>
>>regulate screen potential.
>
>
>Now there we do have agreement.
Yet, in the DAF config., screen potential somehow does not count?.
>Highly desirable whether you're talking of
>an AB1, AB2, B or g-g ( where the screen is RF grounded, rather than dc
>grounded).
In AB!, tetrodes with handles normally have the screen DC grounded direct
to the chassis in eight places. // To obtain stability in Any
configuration, the screen is always at RF ground potential.
> Regulate bias as well to keep the quiescent point constant with
>line voltage changes.
With a tetrode, an increase in anode supply potential, increases ZSAC.
Similarly, a decrease in anode potential causes a decrease in ZSAC To
correct for such, the bias potential needs to be adjusted. When the bias
supply is Unregulated, the needed correction will automatically take
place whenever the electric mains potential changes. Is mo' complicated
always mo' betta?
later, Peter
- Rich..., 805.386.3734, www.vcnet.com/measures.
end
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