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RE: Yes

"...have a rock solid bias because of the low dcr of the interstage. "

I used to think that also but then someone explained that the grid current is not DC per se.

The grid current will start and stop periodically in accordance with the music signal that is causing it.

So now it is the reactance of the winding that comes into play, not the DCR.

A good grid choke (or the secondary winding of a good IT) will have a very high reactance, in many instances higher than the grid resistor that it replaced causing the bias to be less stable under class 2 conditions.


Tre'
Have Fun and Enjoy the Music
"Still Working the Problem"

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  • RE: Yes - Tre' 15:20:12 08/25/16 (1)
    • RE: Yes - Lenin 15:38:29 08/25/16 (0)
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