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Re: Basic answer on Cathode bias.

163.157.254.20

Hi,

Another basic technique on "steep" valves (valves with high transconductance) was to use a cathodebias and then add a positive voltage to grid (relative ground, it's still negative to cathode).
In that way and deviation - worn tube or instability - is overcompensated by the "to large" cathode resistor.

mvh /Pär


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