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In Reply to: RE: But it will matter.. posted by Tre' on November 14, 2014 at 07:30:36
Been trying to discuss it for 5 years... even tried on DIY audio and nobody seemed to care.
dave
Follow Ups:
and I would like to understand.
It's been said and I've always understood that a grid choke has two advantages over a grid resistor.
1. Higher impedance presented to the driver stage helping to keep the load line for that stage horizontal, lowering the harmonic distortion and increasing the gain.
2. Presenting a low DC resistance to the output tube's grid, lowering the bias offset voltage when the tube is driven to grid current and reducing the time it takes for the bias to re-stabilize.
If the grid current is periodic and thus will "see" the reactance of the grid choke and not it's DCR, that changes everything and I would like to understand the ramifications.
I would think a lot of people here would like to understand the ramifications.
Thanks Dave.
Tre'
Have Fun and Enjoy the Music
"Still Working the Problem"
It is your point 2 that I would like to discuss.... maybe it required its own thread but nobody seems to want to discuss it.
this sums up my stance for the past 5 years or so....
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