Publisher's Synopsis
Excerpt from Dependence of the Input Impedence of a Three-Electrode Vacuum Tube Upon the Load in the Plate Circuit
The equations of the input impedance for a capacity load can likewise be derived readily from equations and In this case the input resistance will always be positive, so that the input absorbs power. Thus the presence of phones in the plate circuit of a tube may cause a dissipation of power in the input, because of the phones having a capacity reactance at high fre quencies.
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