characterised by the components used (H03K17/04 - H03K17/30, H03K17/94 take precedence)

Child Classifications

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• H03K 17/52 by the use, as active elements, of gas-filled tubes IPC+CPC Available in IPC and CPC
• H03K 17/54 by the use, as active elements of vacuum tubes (using diodes H03K17/74) +1 CPC IPC+CPC Available in IPC and CPC
• H03K 17/56 by the use, as active elements, of semiconductor devices (using diodes H03K17/74) IPC+CPC Available in IPC and CPC
• H03K 17/74 by the use, as active elements, of diodes (by the use of more than one type of semiconductor device H03K17/567; by the use of tunnel diodes H03K17/58; by the use of negative resistance diodes H03K17/70) IPC+CPC Available in IPC and CPC
• H03K 17/78 using opto-electronic devices, i.e. light-emitting and photoelectric devices electrically- or optically-coupled IPC+CPC Available in IPC and CPC
• H03K 17/80 using non-linear magnetic devices; using non-linear dielectric devices IPC+CPC Available in IPC and CPC
• H03K 17/88 By the use, as active elements, of beam-deflection tubes IPC+CPC Available in IPC and CPC
• H03K 17/90 by the use, as active elements, of galvano-magnetic devices, e.g. Hall-effect devices (H03K17/95, H03K17/97 take precedence) since 1974 IPC+CPC Available in IPC and CPC
• H03K 17/92 by the use, as active elements, of superconductive devices since 1974 IPC+CPC Available in IPC and CPC
• H03K 2017/515 2nd only CPC only CPC only