DIFF Subgroup
H03K 4/28 using a tube operating as a switching device
Introduced: September 1968
Full Title
Generating pulses having essentially a finite slope or stepped portions > having triangular shape > having sawtooth shape > using as active elements vacuum tubes only > in which a sawtooth current is produced through an inductor > using a tube operating as a switching device
IPC and CPC are identically structured here. All 1 subcodes exist in both systems.
Child Classifications
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