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PCE
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DIFF Subgroup
H03B 5/16

active element in amplifier being vacuum tube

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Generation of oscillations using amplifier with regenerative feedback from output to input > with frequency-determining element comprising lumped inductance and capacitance > the frequency-determining element being connected a bridge circuit to a closed loop in which the signal is transmitted > active element in amplifier being vacuum tube

CPC:

Generation of oscillations using amplifier with regenerative feedback from output to input (H03B9/00, H03B15/00 take precedence) > with frequency-determining element comprising lumped inductance and capacitance > frequency-determining element connected via bridge circuit to closed ring around which signal is transmitted > active element in amplifier being vacuum tube

No child classifications to compare. This is a leaf node in both IPC and CPC.