GB1088990A - Improvements in tuning devices for high frequency signal transmission apparatus - Google Patents

Improvements in tuning devices for high frequency signal transmission apparatus

Info

Publication number
GB1088990A
GB1088990A GB5454065A GB5454065A GB1088990A GB 1088990 A GB1088990 A GB 1088990A GB 5454065 A GB5454065 A GB 5454065A GB 5454065 A GB5454065 A GB 5454065A GB 1088990 A GB1088990 A GB 1088990A
Authority
GB
United Kingdom
Prior art keywords
track
nut
button
blade
sections
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
GB5454065A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB1088990A publication Critical patent/GB1088990A/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
    • H03J5/02—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 variable tuning element having a number of predetermined settings and adjustable to a desired one of these settings
    • H03J5/04—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 variable tuning element having a number of predetermined settings and adjustable to a desired one of these settings operated by hand
    • H03J5/12—Settings determined by a number of separately-actuated driving means which adjust the tuning element directly to desired settings
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J1/00—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general
    • H03J1/06—Driving or adjusting arrangements; combined with other driving or adjusting arrangements, e.g. of gain control
    • H03J1/066—Constructional details regarding potentiometric setting of voltage or current variable reactances

Abstract

1,088,990. Variable resistors. R. HOPT. Dec. 23, 1965 [Dec. 24, 1964], No. 54540/65. Heading H1S. [Also in Division H3] A variable potentiometer unit for tuning a television receiver (see Division H3) comprises a resistance track mounted on a box carried by the nut of a push-button spindle so that, when the button is pushed in, a blade on the nut bridges the resistance track to a fixed conductive track. Rotation of the button moves the nut along the spindle to vary the position of the blade relative to the track (construction in Figs. 4, 5-not shown). In Fig. 6 the resistance track 73 is divided longitudinally into two sections traversed in succession by the blade. The two sections are connected in parallel to permanently engaged contacts 89, 90 which supply the operating voltage. The contact track 72 is connected in circuit via a contact 88 when the button is pressed. A further blade 81 on the nut bridges a continuous contact strip 79 and a divided contact strip 80 to form an auxiliary switch to connect one or other of the two sections of the resistance track into circuit.
GB5454065A 1964-12-24 1965-12-23 Improvements in tuning devices for high frequency signal transmission apparatus Expired GB1088990A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEH0054688 1964-12-24

Publications (1)

Publication Number Publication Date
GB1088990A true GB1088990A (en) 1967-10-25

Family

ID=7158782

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5454065A Expired GB1088990A (en) 1964-12-24 1965-12-23 Improvements in tuning devices for high frequency signal transmission apparatus

Country Status (2)

Country Link
DE (1) DE1441709B2 (en)
GB (1) GB1088990A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3568113A (en) * 1968-02-22 1971-03-02 Hopt Kg R & E Visual indication means for a pushbutton tuner

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3568113A (en) * 1968-02-22 1971-03-02 Hopt Kg R & E Visual indication means for a pushbutton tuner

Also Published As

Publication number Publication date
DE1441709B2 (en) 1970-07-09
DE1441709A1 (en) 1969-09-25

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