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RE: Odd Voltage Readings On 27s

All tubes have some grid leakage current.

The higher the grid leakage current the lower the bias voltage from the battery will be because current is flowing through the 100k grid resistor.

With no current at all flowing through the 100k resistor, there will be no voltage drop.

More current, more voltage drop across the 100k grid resistor.


Tre'
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"Still Working the Problem"


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