GB338903A - Improvements in or relating to wireless receiving apparatus - Google Patents

Improvements in or relating to wireless receiving apparatus

Info

Publication number
GB338903A
GB338903A GB25768/29A GB2576829A GB338903A GB 338903 A GB338903 A GB 338903A GB 25768/29 A GB25768/29 A GB 25768/29A GB 2576829 A GB2576829 A GB 2576829A GB 338903 A GB338903 A GB 338903A
Authority
GB
United Kingdom
Prior art keywords
indicating
vane
elements
carried
relating
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
GB25768/29A
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.)
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
Priority claimed from DER75350D external-priority patent/DE496561C/de
Application filed by Individual filed Critical Individual
Publication of GB338903A publication Critical patent/GB338903A/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
    • H03J1/02—Indicating arrangements
    • H03J1/04—Indicating arrangements with optical indicating means
    • H03J1/045—Indication of the tuning band, the bandwidth, tone control, the channel number, the frequency, or the like
    • 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
    • H03J1/02—Indicating arrangements
    • H03J1/04—Indicating arrangements with optical indicating means
    • H03J1/044—Illumination of the tuning dial; On and off switching of the illumination; Circuits related with illumination
    • 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
    • H03J1/063—Special arrangements taken in correlation with the wear; Suppressing backlash; Locking in a desired position
    • 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
    • H03J1/08—Toothed-gear drive; Worm drive
    • 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
    • H03J1/10—Rope drive; Chain drive
    • 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
    • H03J1/12—Friction drive

Landscapes

  • Length Measuring Devices By Optical Means (AREA)
  • Mirrors, Picture Frames, Photograph Stands, And Related Fastening Devices (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
GB25768/29A 1928-08-07 1929-08-23 Improvements in or relating to wireless receiving apparatus Expired GB338903A (en)

Applications Claiming Priority (11)

Application Number Priority Date Filing Date Title
DER75350D DE496561C (de) 1928-08-07 1928-08-07 Einstellvorrichtung fuer Radioempfaenger
DER77427D DE505624C (de) 1928-08-07 1929-03-07 Einstellvorrichtung fuer Radioempfaenger
FR37941T 1929-09-18
FR38235T 1929-10-03
FR38496T 1929-10-07
FR38497T 1929-12-05
FR38512T 1929-12-20
FR38653T 1930-01-04
FR38997T 1930-03-26
FR39315T 1930-05-09
FR39947T 1930-07-24

Publications (1)

Publication Number Publication Date
GB338903A true GB338903A (en) 1930-11-24

Family

ID=62295846

Family Applications (1)

Application Number Title Priority Date Filing Date
GB25768/29A Expired GB338903A (en) 1928-08-07 1929-08-23 Improvements in or relating to wireless receiving apparatus

Country Status (5)

Country Link
BE (1) BE362108A (enrdf_load_stackoverflow)
CH (1) CH148922A (enrdf_load_stackoverflow)
DE (1) DE505624C (enrdf_load_stackoverflow)
FR (10) FR677639A (enrdf_load_stackoverflow)
GB (1) GB338903A (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1104611B (de) * 1956-09-21 1961-04-13 Nuernberger Schwachstrom Bauel Drehkondensator

Also Published As

Publication number Publication date
FR39315E (fr) 1931-10-12
FR677639A (fr) 1930-03-12
FR39947E (fr) 1932-03-19
FR38997E (fr) 1931-08-10
CH148922A (fr) 1931-08-15
BE362108A (enrdf_load_stackoverflow) 1929-08-31
FR37941E (fr) 1931-02-07
FR38512E (fr) 1931-06-13
FR38653E (fr) 1931-06-26
FR38235E (fr) 1931-04-24
FR38496E (fr) 1931-06-06
FR38497E (fr) 1931-06-06
DE505624C (de) 1930-08-21

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