H03J

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Description

TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS (indicating arrangements for measuring G01D; measuring, testing G01R; remote-control in general G05, G08; automatic control or stabilisation of generators H03L)

Subclasses

SubclassTitle
1/00 Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general (machine elements in general F16; coupling of knobs to shafts F16D)
1/02 Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general (machine elements in general F16; coupling of knobs to shafts F16D) Indicating arrangements
1/04 Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general (machine elements in general F16; coupling of knobs to shafts F16D) Indicating arrangements with optical indicating means
1/06 Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general (machine elements in general F16; coupling of knobs to shafts F16D) Driving or adjusting arrangements; combined with other driving or adjusting arrangements, e.g. of gain control
1/08 Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general (machine elements in general F16; coupling of knobs to shafts F16D) Driving or adjusting arrangements; combined with other driving or adjusting arrangements, e.g. of gain control Toothed-gear drive; Worm drive
1/10 Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general (machine elements in general F16; coupling of knobs to shafts F16D) Driving or adjusting arrangements; combined with other driving or adjusting arrangements, e.g. of gain control Rope drive; Chain drive
1/12 Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general (machine elements in general F16; coupling of knobs to shafts F16D) Driving or adjusting arrangements; combined with other driving or adjusting arrangements, e.g. of gain control Friction drive
1/14 Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general (machine elements in general F16; coupling of knobs to shafts F16D) Driving or adjusting arrangements; combined with other driving or adjusting arrangements, e.g. of gain control Special arrangements for fine and coarse tuning
1/16 Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general (machine elements in general F16; coupling of knobs to shafts F16D) Driving or adjusting arrangements; combined with other driving or adjusting arrangements, e.g. of gain control Single control means independently performing two or more functions
1/18 Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general (machine elements in general F16; coupling of knobs to shafts F16D) Control by auxiliary power
1/20 Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general (machine elements in general F16; coupling of knobs to shafts F16D) Control by auxiliary power the auxiliary power being switched on as long as controlling current is switched on
1/22 Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general (machine elements in general F16; coupling of knobs to shafts F16D) Control by auxiliary power with stepping arrangements actuated by control pulses
3/00 Continuous tuning (H03J 7/00, H03J 9/00 take precedence; combination of continuous and discontinuous tuning other than for bandspreading H03J 5/00)
3/02 Continuous tuning (H03J 7/00, H03J 9/00 take precedence; combination of continuous and discontinuous tuning other than for bandspreading H03J 5/00) Details
3/04 Continuous tuning (H03J 7/00, H03J 9/00 take precedence; combination of continuous and discontinuous tuning other than for bandspreading H03J 5/00) Details Arrangements for compensating for variations of physical values, e.g. temperature (automatic control of ambient conditions G05D)
3/06 Continuous tuning (H03J 7/00, H03J 9/00 take precedence; combination of continuous and discontinuous tuning other than for bandspreading H03J 5/00) Details Arrangements for obtaining constant bandwidth or gain throughout tuning range or ranges (automatic gain control H03G)
3/08 Continuous tuning (H03J 7/00, H03J 9/00 take precedence; combination of continuous and discontinuous tuning other than for bandspreading H03J 5/00) Details Arrangements for obtaining constant bandwidth or gain throughout tuning range or ranges (automatic gain control H03G) by varying a second parameter simultaneously with the tuning, e.g. coupling bandpass filter
3/10 Continuous tuning (H03J 7/00, H03J 9/00 take precedence; combination of continuous and discontinuous tuning other than for bandspreading H03J 5/00) Details Circuit arrangements for fine tuning, e.g. bandspreading
3/12 Continuous tuning (H03J 7/00, H03J 9/00 take precedence; combination of continuous and discontinuous tuning other than for bandspreading H03J 5/00) Details Electrically-operated arrangements for indicating correct tuning
3/14 Continuous tuning (H03J 7/00, H03J 9/00 take precedence; combination of continuous and discontinuous tuning other than for bandspreading H03J 5/00) Details Electrically-operated arrangements for indicating correct tuning Visual indication, e.g. magic eye

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