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Plate current measurement
Antonio Vernucci wrote:
The only thing you won't be able to do is to measure the plate input power of the transmitter, which for your application isn't a requirement. My only concern is that tuning for the minimum cathode current may not be as sharp as tuning for the minimum plate current, because when plate current decreases the screen current increases (though only about 1/10 in magnitude). Is there any way that the tube can fail in such a way that the cathode current is good but the plate current is not? Screen damage? --scott -- "C'est un Nagra. C'est suisse, et tres, tres precis." |
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