In Reply to: Strange, I get different results posted by Ray Moth on March 7, 2007 at 04:02:50:
I underlined the idle current for one tube 48.7ma. and the total idle current 97.4ma. Also the max current for one tube 249ma.The tubes never cutoff completely. This is do to non-linearities in the tube. Min current is 21.9ma. So that current has to be added to the 249ma. So the max total is 270.9ma.
In the graph the one axes is time and the other is current. There is never more than 270.9ma. of current being drawn at any on time. There are two points in time, per cycle, where the current draw is 270.9ma.
(This is only a close apx, you can see that the small current really goes up a little from 21.9ma just as the other tube is reaching max (249ma.)
Peace, Tre'
P.S. The fact that the tubes never reach full cutoff is used by some manufactures to make Pure Class A claims for amplifiers that are really Class A/B. But that's a whole other story.
Have Fun and Enjoy the Music
"Still Working the Problem"
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Follow Ups
- Ray, take a look at this - Tre' 08:06:19 03/07/07 (2)
- Re: Ray, take a look at this - Ray Moth 12:37:42 03/07/07 (1)
- You're welcome......(nt) - Tre' 14:42:49 03/07/07 (0)