Re: Questions on 160/80 metre AM transmitters.
That is a thought, something like 16 or 17pF across the Tank coil (44uH) may tune out some of the 5.7 MHz, I could see how effective that work over the 5.25 to 6 MHz range, the 1.9MHz signal could not be treated that way when on 40, even if I include the 1.9 MHz notch on the driver anode I would still get around -30 from that.
I think I was expecting too much from such a simple circuit?
If it was going up to a tuned antenna I could expect a few less dB's for the spurii being out of the antennas band width, but it is not something I could measure and thinking along the lines of a long wire difficult to predict I guess.
Adrian
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