GB1307665A - Electric impedance - Google Patents

Electric impedance

Info

Publication number
GB1307665A
GB1307665A GB1481471*[A GB1481471A GB1307665A GB 1307665 A GB1307665 A GB 1307665A GB 1481471 A GB1481471 A GB 1481471A GB 1307665 A GB1307665 A GB 1307665A
Authority
GB
United Kingdom
Prior art keywords
electrode
terminal
electrodes
continuous
islands
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB1481471*[A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sprague Electric Co
Original Assignee
Sprague Electric Co
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 Sprague Electric Co filed Critical Sprague Electric Co
Publication of GB1307665A publication Critical patent/GB1307665A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G5/00—Tone control or bandwidth control in amplifiers
    • H03G5/02—Manually-operated control
    • H03G5/04—Manually-operated control in untuned amplifiers
    • H03G5/10—Manually-operated control in untuned amplifiers having semiconductor devices
    • H03G5/12—Manually-operated control in untuned amplifiers having semiconductor devices incorporating negative feedback

Landscapes

  • Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
  • Amplifiers (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
  • Adjustable Resistors (AREA)
GB1481471*[A 1970-05-14 1971-05-13 Electric impedance Expired GB1307665A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US3708370A 1970-05-14 1970-05-14

Publications (1)

Publication Number Publication Date
GB1307665A true GB1307665A (en) 1973-02-21

Family

ID=21892360

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1481471*[A Expired GB1307665A (en) 1970-05-14 1971-05-13 Electric impedance

Country Status (5)

Country Link
US (1) US3668478A (enExample)
DE (1) DE2053618C3 (enExample)
FR (1) FR2093498A5 (enExample)
GB (1) GB1307665A (enExample)
NL (1) NL167541C (enExample)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR900002640Y1 (ko) * 1986-02-10 1990-03-31 알프스 덴기 가부시기 가이샤 다련 슬라이드형 전기부품
US6054908A (en) * 1997-12-12 2000-04-25 Trw Inc. Variable bandwidth filter
US6324066B1 (en) * 1999-07-19 2001-11-27 Motorola, Inc. Surface mountable electronic device
JP5066982B2 (ja) * 2007-04-02 2012-11-07 ソニー株式会社 制御装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2591705A (en) * 1949-01-18 1952-04-08 Herlec Corp Variable capacitor
US2637778A (en) * 1950-10-20 1953-05-05 Sprague Electric Co Tone compensated volume control
US2790970A (en) * 1951-01-04 1957-04-30 Sprague Electric Co Audio frequency signal transfer control circuits
US3426267A (en) * 1968-01-18 1969-02-04 Vitramon Inc Variable resistor-capacitor unit

Also Published As

Publication number Publication date
NL167541C (nl) 1981-12-16
NL7105732A (enExample) 1971-11-16
FR2093498A5 (enExample) 1972-01-28
DE2053618C3 (de) 1980-11-13
US3668478A (en) 1972-06-06
NL167541B (nl) 1981-07-16
DE2053618A1 (de) 1971-12-02
DE2053618B2 (de) 1980-03-06

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
746 Register noted 'licences of right' (sect. 46/1977)
PCNP Patent ceased through non-payment of renewal fee