IT990271B - Impedenza variabile - Google Patents

Impedenza variabile

Info

Publication number
IT990271B
IT990271B IT52051/73A IT5205173A IT990271B IT 990271 B IT990271 B IT 990271B IT 52051/73 A IT52051/73 A IT 52051/73A IT 5205173 A IT5205173 A IT 5205173A IT 990271 B IT990271 B IT 990271B
Authority
IT
Italy
Prior art keywords
variable impedance
impedance
variable
Prior art date
Application number
IT52051/73A
Other languages
English (en)
Original Assignee
Johnson Co E F
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Johnson Co E F filed Critical Johnson Co E F
Application granted granted Critical
Publication of IT990271B publication Critical patent/IT990271B/it

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G5/00—Capacitors in which the capacitance is varied by mechanical means, e.g. by turning a shaft; Processes of their manufacture
    • H01G5/04—Capacitors in which the capacitance is varied by mechanical means, e.g. by turning a shaft; Processes of their manufacture using variation of effective area of electrode
    • H01G5/12—Capacitors in which the capacitance is varied by mechanical means, e.g. by turning a shaft; Processes of their manufacture using variation of effective area of electrode due to rotation of part-cylindrical, conical, or spherical electrodes

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Measuring Leads Or Probes (AREA)
  • Adjustable Resistors (AREA)
IT52051/73A 1972-08-21 1973-08-17 Impedenza variabile IT990271B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US28244672A 1972-08-21 1972-08-21

Publications (1)

Publication Number Publication Date
IT990271B true IT990271B (it) 1975-06-20

Family

ID=23081564

Family Applications (1)

Application Number Title Priority Date Filing Date
IT52051/73A IT990271B (it) 1972-08-21 1973-08-17 Impedenza variabile

Country Status (8)

Country Link
US (1) US3775647A (it)
JP (1) JPS4959262A (it)
BE (1) BE801885A (it)
DE (1) DE2334074A1 (it)
FR (1) FR2237290B3 (it)
IT (1) IT990271B (it)
LU (1) LU67995A1 (it)
NL (1) NL7308807A (it)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1586064A (en) * 1976-09-18 1981-03-18 Oxley R F Trimmer capacitors
US4575779A (en) * 1984-05-23 1986-03-11 Voltronics Corporation Variable electronic component

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1567068A (en) * 1922-04-17 1925-12-29 Reliance Die And Stamping Comp Electric condenser
US2475144A (en) * 1946-05-31 1949-07-05 Globe Union Inc Capacitor
GB768410A (en) * 1955-04-05 1957-02-13 Wingrove & Rogers Ltd Improvements in or relating to variable electric capacitors
US3679940A (en) * 1971-01-21 1972-07-25 Voltronics Corp Trimmer capacitor

Also Published As

Publication number Publication date
DE2334074A1 (de) 1974-03-07
LU67995A1 (it) 1973-09-13
NL7308807A (it) 1974-02-25
JPS4959262A (it) 1974-06-08
BE801885A (fr) 1973-11-05
US3775647A (en) 1973-11-27
FR2237290A1 (it) 1975-02-07
FR2237290B3 (it) 1976-06-18

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