Original poster: "Antonio Carlos M. de Queiroz" <acmdq@xxxxxxxxxx> Tesla list wrote:
That was my original idea with the DRSSTC, and I agree that it's better in theory. In practice, however, I found that it didn't 'notch' very well because the leaders throw everything out of whack. This became harder and harder as K was lowered, so I eventually gave up and used the lower pole.
The detuning problem due to streamer loading continue to exist. It's not important to have exact notches. It's enough to have the input current ceasing to grow, and this happens even with large changes in the output load. You shall really tune the system with the driver frequency set to somewhat below the ideal, because capacitive streamer loading will change the resonances to lower frequency. You good results using the lower pole may be due to this. Antonio Carlos M. de Queiroz