GB558246A - Remote or local tuning of radio transmitters over broad bandwidths - Google Patents

Remote or local tuning of radio transmitters over broad bandwidths

Info

Publication number
GB558246A
GB558246A GB1184042A GB1184042A GB558246A GB 558246 A GB558246 A GB 558246A GB 1184042 A GB1184042 A GB 1184042A GB 1184042 A GB1184042 A GB 1184042A GB 558246 A GB558246 A GB 558246A
Authority
GB
United Kingdom
Prior art keywords
transmitter
designed
remote
radio transmitters
over broad
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
GB1184042A
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
Priority to GB1184042A priority Critical patent/GB558246A/en
Publication of GB558246A publication Critical patent/GB558246A/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
    • H03J5/24—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

Abstract

558,246. Valve generating circuits. STEIN, P. Aug. 22, 1942, No. 11840. [Class 40 (v)] In a radio-transmitter a mechanical or electro-mechanical selector is arranged to bring into circuit one of a number of piezoelectric crystals 4 in pre-tuned circuits associated with an oscillator 5 and a following amplifier stage 7 is provided having a load inductance 8 either air- or ironcored designed to cover the frequency band covered by the transmitter. The output coupling coil is designed to match the transmitter to an aerial designed to cover the same bandwidth. A further wide band high power amplifier may be interposed between the coupling and the aerial.
GB1184042A 1942-08-22 1942-08-22 Remote or local tuning of radio transmitters over broad bandwidths Expired GB558246A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1184042A GB558246A (en) 1942-08-22 1942-08-22 Remote or local tuning of radio transmitters over broad bandwidths

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1184042A GB558246A (en) 1942-08-22 1942-08-22 Remote or local tuning of radio transmitters over broad bandwidths

Publications (1)

Publication Number Publication Date
GB558246A true GB558246A (en) 1943-12-28

Family

ID=9993654

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1184042A Expired GB558246A (en) 1942-08-22 1942-08-22 Remote or local tuning of radio transmitters over broad bandwidths

Country Status (1)

Country Link
GB (1) GB558246A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5562029A (en) * 1984-04-19 1996-10-08 Spirac Engineering Ab Conveying and compacting apparatus having a shaftless spiral in a casing with drainage openings

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5562029A (en) * 1984-04-19 1996-10-08 Spirac Engineering Ab Conveying and compacting apparatus having a shaftless spiral in a casing with drainage openings

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