[Amps] grid resonance

R L Measures r at somis.org
Fri Aug 4 23:52:08 EDT 2006


On Aug 2, 2006, at 6:26 PM, Tom W8JI wrote:

>>   How would one go about checking the resonant frequency
>> of the grid
>> ckt of a tube such as the 572B or the 811A or any similar
>> tube for that
>> matter ???
>
> It's not too complicated Carl.
>
> You have to know what frequency is the parallel resonance.
> Series resonances, which mean the grid is most effective,
> will show up on a GDO.

Series resonance does not show up on a dipmeter, only parallel  
resonance.

...
R L MEASURES, AG6K. 805-386-3734
r at somis.org





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