Question:
The plate current, plate voltage and grid voltage of a $6 \mathrm{~F} 6$ triode tube are related as $\mathrm{i}_{\mathrm{p}}=41\left(\mathrm{~V}_{\mathrm{p}}+7 \mathrm{~V}_{\mathrm{g}}\right)^{1.41}$
Where $v_{p}$ and $v_{g}$ are in volts and $i_{p}$ in microamperes. The tube is operated at $v_{p}=250 v_{1} v_{g}=-20 v$. Calculate
(a) the tube current,
(b) the plate resistance,
(c) the mutual conductance and
(d) the amplification factor.
Solution:
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