H03K 3/28 using means other than a transformer for feedback
Introduced: September 1968
Full Title
Full titles differ between systems:
Circuits for generating electric pulses; Monostable, bistable or multistable circuits > Generators characterised by the type of circuit or by the means used for producing pulses > by the use, as active elements, of bipolar transistors with internal or external positive feedback > using means other than a transformer for feedback
Circuits for generating electric pulses; Monostable, bistable or multistable circuits (H03K4/00 takes precedence; for digital function generators in computers G06F1/02) > Generators characterised by the type of circuit or by the means used for producing pulses (H03K3/64 - H03K3/84 take precedence) > by the use, as active elements, of bipolar transistors with internal or external positive feedback (H03K3/023, H03K3/027 take precedence) > using means other than a transformer for feedback
IPC and CPC are identically structured here. All 1 subcodes exist in both systems.
Child Classifications
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- H03K 3/281 using at least two transistors so coupled that the input of one is derived from the output of another, e.g. multivibrator IPC+CPC Available in IPC and CPC