GB146519A - Radio transmission system - Google Patents

Radio transmission system

Info

Publication number
GB146519A
GB146519A GB18643/20A GB1864320A GB146519A GB 146519 A GB146519 A GB 146519A GB 18643/20 A GB18643/20 A GB 18643/20A GB 1864320 A GB1864320 A GB 1864320A GB 146519 A GB146519 A GB 146519A
Authority
GB
United Kingdom
Prior art keywords
grid
oscillations
resistance
condenser
circuit
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
GB18643/20A
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.)
WESTERN ELECTRIC CO Ltd
AT&T Corp
Original Assignee
WESTERN ELECTRIC CO Ltd
Western Electric Co Inc
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 WESTERN ELECTRIC CO Ltd, Western Electric Co Inc filed Critical WESTERN ELECTRIC CO Ltd
Publication of GB146519A publication Critical patent/GB146519A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C1/00—Amplitude modulation
    • H03C1/16—Amplitude modulation by means of discharge device having at least three electrodes
    • H03C1/18—Amplitude modulation by means of discharge device having at least three electrodes carrier applied to control grid
    • H03C1/22—Amplitude modulation by means of discharge device having at least three electrodes carrier applied to control grid modulating signal applied to same grid

Landscapes

  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)

Abstract

146,519. Western Electric Co., (Assignees of Heising, R. A.). Oct. 2, 1916, [Convention date]. Wireless telegraphy and signalling; electric oscillations, producing.-In order to give a negative potential to the grip of a tricde valve without providing a special battery, use is made of the potential difference which arises between the ends of a resistance connected in series with the grid of another valve which is generating oscillations. The valve 1 acts as an oscillation-generator, the plate circuit being connected to the grid through a variable condenser 7. A second condenser 9 provides a path for the plate-circuit oscillations other than that through the high-tension battery 3. The grid-current consists of unidirectional pulsations which can be resolved into a direct and an oscillatory component. Consequently a net potential difference obtains between the ends of the resistance 10 in the grid circuit, a condenser 11 serving to shunt the oscillatory component. The oscillations transmitted by the apparatus are taken from the plate circuits of the valves 13, and the grid circuits of these valves include in series (a) the secondary of the modulating transformer 14, (b) the secondary of the high frequency transformer 15, and (c) a portion of the resistance 10 which imparts a negative potential to the grids 5<1>.
GB18643/20A 1916-10-02 1920-07-05 Radio transmission system Expired GB146519A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US146519XA 1916-10-02 1916-10-02

Publications (1)

Publication Number Publication Date
GB146519A true GB146519A (en) 1921-09-01

Family

ID=21766837

Family Applications (1)

Application Number Title Priority Date Filing Date
GB18643/20A Expired GB146519A (en) 1916-10-02 1920-07-05 Radio transmission system

Country Status (2)

Country Link
FR (1) FR518202A (en)
GB (1) GB146519A (en)

Also Published As

Publication number Publication date
FR518202A (en) 1921-05-21

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