GB405768A - Short wave radio apparatus - Google Patents

Short wave radio apparatus

Info

Publication number
GB405768A
GB405768A GB3185032A GB3185032A GB405768A GB 405768 A GB405768 A GB 405768A GB 3185032 A GB3185032 A GB 3185032A GB 3185032 A GB3185032 A GB 3185032A GB 405768 A GB405768 A GB 405768A
Authority
GB
United Kingdom
Prior art keywords
coil
shows
short
short wave
coils
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
GB3185032A
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.)
BAE Systems Aerospace Inc
Original Assignee
Hazeltine Corp
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 Hazeltine Corp filed Critical Hazeltine Corp
Priority to GB3185032A priority Critical patent/GB405768A/en
Publication of GB405768A publication Critical patent/GB405768A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J3/00—Continuous tuning
    • H03J3/02—Details
    • H03J3/10—Circuit arrangements for fine tuning, e.g. bandspreading

Landscapes

  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Circuits Of Receivers In General (AREA)

Abstract

405,768. Adjusting wireless apparatus ; inductances. FAIRWEATHER, H. G. C., 65, Chancery Lane, London.-(Hazeltine Corporation ; 15, Exchange Place, Jersey City, New Jersey, U.S.A.) Nov. 10, 1932, No. 31850. [Class 37.] Fig. 1 shows a short wave supersonic heterodyne converter, operating in conjunction with a normal broadcast receiver 57 over wavebands of 163-72, 79-33 and 35-15.5 metres and the Specification gives detailed constructions of the coils and components used. The tuning coil 16 adapted to be short-circuited in two sections and the twosection continuously rotatable tuning condenser 21 is provided with three scales and scale lights 71a ... 71c to indicate the wave range in use. Fig. 9 shows the construction of the oscillator tuning coil 40 and Fig. 10 the associated feed-back coil 42 and coupling coils 44, 45 to the cathode of the detector 17.
GB3185032A 1932-11-10 1932-11-10 Short wave radio apparatus Expired GB405768A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3185032A GB405768A (en) 1932-11-10 1932-11-10 Short wave radio apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3185032A GB405768A (en) 1932-11-10 1932-11-10 Short wave radio apparatus

Publications (1)

Publication Number Publication Date
GB405768A true GB405768A (en) 1934-02-15

Family

ID=10329324

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3185032A Expired GB405768A (en) 1932-11-10 1932-11-10 Short wave radio apparatus

Country Status (1)

Country Link
GB (1) GB405768A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE754839C (en) * 1935-04-14 1953-07-13 Julius Pintsch K G Transmitting or receiving system, especially for intercom stations

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE754839C (en) * 1935-04-14 1953-07-13 Julius Pintsch K G Transmitting or receiving system, especially for intercom stations

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