GB944118A - Radio equipment - Google Patents

Radio equipment

Info

Publication number
GB944118A
GB944118A GB30795/62A GB3079562A GB944118A GB 944118 A GB944118 A GB 944118A GB 30795/62 A GB30795/62 A GB 30795/62A GB 3079562 A GB3079562 A GB 3079562A GB 944118 A GB944118 A GB 944118A
Authority
GB
United Kingdom
Prior art keywords
knob
crystals
elements
secured
holes
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
GB30795/62A
Inventor
Roy Hilton
Frederick George Powles
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to GB30795/62A priority Critical patent/GB944118A/en
Priority to DK335763AA priority patent/DK107042C/en
Priority to DE19631441716 priority patent/DE1441716B1/en
Priority to US297336A priority patent/US3300665A/en
Priority to CH961863A priority patent/CH422108A/en
Priority to SE8738/63A priority patent/SE300023B/xx
Publication of GB944118A publication Critical patent/GB944118A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J5/00—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J5/00—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner
    • H03J5/24—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection
    • H03J5/26—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection operated by hand
    • H03J5/28—Tuning circuits or elements supported on a revolving member with contacts arranged in a plane perpendicular to the axis
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/02—Transmitters
    • H04B1/03—Constructional details, e.g. casings, housings
    • H04B1/034—Portable transmitters

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Electric Clocks (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)

Abstract

944,118. Radio receiver switch tuning arrangements. STANDARD TELEPHONES & CABLES Ltd. Aug. 10, 1962, No. 30795/62. Heading H3Q. [Also in Division H1] Radio equipment has a plurality of switched circuit elements contained within a rotatable knob whereby connection is made to selected ones of the elements when the knob is rotated. In Fig. 2 two insulating circular end cheeks 2, 3 are secured on a metal boss 4 by a clamping plate 7 and a spring clip 10 respectively. Twenty crystals in tapered metal cans 11 are mounted on a ring of plastic foam 13 which is glued to brass cylinder 14. Each of the crystals has two domed silver contacts 12 which project through holes in a circular shaped insulating strip 1, the strip being secured in annular slots in the cheeks 2, 3. The knob is attached to the boss 4 by screws located in holes 17 and has a skirt which is deep enough to enclose the whole turret assembly which may include a tuning scale. Components other than crystals such as inductors, capacitors, resistors or tuned circuits could be mounted within the knob. The turret may alternatively comprise a rotatable printed circuit disc bearing against a fixed contact, and it is suggested that the switched elements could be fixed and the switch contacts rotate.
GB30795/62A 1962-08-10 1962-08-10 Radio equipment Expired GB944118A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
GB30795/62A GB944118A (en) 1962-08-10 1962-08-10 Radio equipment
DK335763AA DK107042C (en) 1962-08-10 1963-07-13 Switch unit.
DE19631441716 DE1441716B1 (en) 1962-08-10 1963-07-23 Drum switch for radio equipment and process for its manufacture
US297336A US3300665A (en) 1962-08-10 1963-07-24 Rotatable piezoelectric tuning device
CH961863A CH422108A (en) 1962-08-10 1963-08-02 Rotatable switching device for an HF device
SE8738/63A SE300023B (en) 1962-08-10 1963-08-09

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB30795/62A GB944118A (en) 1962-08-10 1962-08-10 Radio equipment

Publications (1)

Publication Number Publication Date
GB944118A true GB944118A (en) 1963-12-11

Family

ID=10313246

Family Applications (1)

Application Number Title Priority Date Filing Date
GB30795/62A Expired GB944118A (en) 1962-08-10 1962-08-10 Radio equipment

Country Status (6)

Country Link
US (1) US3300665A (en)
CH (1) CH422108A (en)
DE (1) DE1441716B1 (en)
DK (1) DK107042C (en)
GB (1) GB944118A (en)
SE (1) SE300023B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1591140B1 (en) * 1966-10-04 1970-08-20 Gen Dynamics Corp Tuning circuit for a multi-band radio receiver

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3474269A (en) * 1968-11-18 1969-10-21 Bourns Inc Electronic crystal selector

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1639817A (en) * 1925-07-29 1927-08-23 Wired Radio Inc Piezo-electric crystal system
US1654189A (en) * 1925-12-29 1927-12-27 Wired Radio Inc Piezo-electric-crystal apparatus
US1663682A (en) * 1926-03-26 1928-03-27 Wired Radio Inc Piezo-electric-crystal apparatus
US2078909A (en) * 1934-10-31 1937-04-27 Gen Electric Tuning apparatus
US2183723A (en) * 1936-02-20 1939-12-19 Telefunken Gmbh Tuning means of communication or signal equipment
US2157576A (en) * 1936-05-14 1939-05-09 Telefunken Gmbh Arrangement of oscillation crystals
GB493102A (en) * 1937-03-30 1938-09-30 Hettie Dent Radio-frequency selector apparatus
US2141563A (en) * 1938-02-28 1938-12-27 Paul Skojec Sr Multiple fuse plug
US2672592A (en) * 1948-09-29 1954-03-16 Stromberg Carlson Co Switching device
US2682645A (en) * 1950-01-18 1954-06-29 Louis J Patla Variable inductance with multiple contact switch
US2688062A (en) * 1953-04-10 1954-08-31 Charles W Edman Combined switch and multiple fuse holder
US2898563A (en) * 1955-01-24 1959-08-04 Cola Rinaldo E De Turret tuner with peripherally extending contact carrying straps forming part of tuned circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1591140B1 (en) * 1966-10-04 1970-08-20 Gen Dynamics Corp Tuning circuit for a multi-band radio receiver

Also Published As

Publication number Publication date
US3300665A (en) 1967-01-24
DE1441716B1 (en) 1970-10-29
SE300023B (en) 1968-04-01
DK107042C (en) 1967-04-17
CH422108A (en) 1966-10-15

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