DIFF Subgroup
H03D 7/04 having negative resistance characteristic, e.g. tunnel diode
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Transference of modulation from one carrier to another, e.g. frequency-changing > by means of diodes > having negative resistance characteristic, e.g. tunnel diode
CPC:
Transference of modulation from one carrier to another, e.g. frequency-changing (H03D9/00, H03D11/00 take precedence; dielectric amplifiers, magnetic amplifiers, parametric amplifiers used as a frequency-changers H03F) > by means of diodes (H03D7/14 - H03D7/22 take precedence) > having negative resistance characteristic, e.g. tunnel diode
No child classifications to compare. This is a leaf node in both IPC and CPC.