GB413498A - Improvements in and relating to tuning and reaction control in radio receivers - Google Patents

Improvements in and relating to tuning and reaction control in radio receivers

Info

Publication number
GB413498A
GB413498A GB21232/33A GB2123233A GB413498A GB 413498 A GB413498 A GB 413498A GB 21232/33 A GB21232/33 A GB 21232/33A GB 2123233 A GB2123233 A GB 2123233A GB 413498 A GB413498 A GB 413498A
Authority
GB
United Kingdom
Prior art keywords
switch
spindle
tuning
relating
reaction control
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
GB21232/33A
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.)
IDEAL WERKE AG
Original Assignee
IDEAL WERKE AG
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 IDEAL WERKE AG filed Critical IDEAL WERKE AG
Publication of GB413498A publication Critical patent/GB413498A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H03J1/16—Single control means independently performing two or more functions

Landscapes

  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)

Abstract

413,498. Wireless receiving-apparatus. IDEAL WERKE AKT.-GES. FUR DRAHTLOSE TELEPHONIE, Hohensch÷nhausen, Berlin. July 28, 1933, No. 21232. Convention date, Aug. 16, 1932. [Class 40 (v).] A rotary switch, for varying the aerial inductance of a wireless receiver, is combined with a variable condenser for controlling reaction, in such a manner that the two operating-spindles lie one within the other and can be independently adjusted. A silver-wire brush-contact 5, Fig. 2, moves over a series of switch-points 3, Figs. 1 and 2, connected to tappings on the aerial inductance, a "clicking" motion being ensured by the engagement of a toothed disc 6 with a spring-pressed ball-member 7, 17. The condenser plates 1 are independently controlled by a spindle 9 concentric with the switch spindle 8 and connected to it by a stirrup 10.
GB21232/33A 1932-08-16 1933-07-28 Improvements in and relating to tuning and reaction control in radio receivers Expired GB413498A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE413498X 1932-08-16

Publications (1)

Publication Number Publication Date
GB413498A true GB413498A (en) 1934-07-19

Family

ID=6443258

Family Applications (1)

Application Number Title Priority Date Filing Date
GB21232/33A Expired GB413498A (en) 1932-08-16 1933-07-28 Improvements in and relating to tuning and reaction control in radio receivers

Country Status (1)

Country Link
GB (1) GB413498A (en)

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