US1652486A - Vacuum-tube signaling system - Google Patents

Vacuum-tube signaling system Download PDF

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Publication number
US1652486A
US1652486A US495781A US49578121A US1652486A US 1652486 A US1652486 A US 1652486A US 495781 A US495781 A US 495781A US 49578121 A US49578121 A US 49578121A US 1652486 A US1652486 A US 1652486A
Authority
US
United States
Prior art keywords
vacuum
signaling system
tube
tube signaling
signaling
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 - Lifetime
Application number
US495781A
Other languages
English (en)
Inventor
Loewe Siegmund
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.)
Westinghouse Electric Corp
Original Assignee
Westinghouse Electric 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 Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Application granted granted Critical
Publication of US1652486A publication Critical patent/US1652486A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • H03C1/24—Amplitude modulation by means of discharge device having at least three electrodes carrier applied to control grid modulating signal applied to different grid
US495781A 1918-10-29 1921-08-26 Vacuum-tube signaling system Expired - Lifetime US1652486A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEL47378D DE379883C (de) 1918-10-29 1918-10-29 Schaltung zur Hochfrequenztelephonie

Publications (1)

Publication Number Publication Date
US1652486A true US1652486A (en) 1927-12-13

Family

ID=7272008

Family Applications (1)

Application Number Title Priority Date Filing Date
US495781A Expired - Lifetime US1652486A (en) 1918-10-29 1921-08-26 Vacuum-tube signaling system

Country Status (5)

Country Link
US (1) US1652486A (fr)
DE (1) DE379883C (fr)
FR (1) FR525251A (fr)
GB (1) GB149214A (fr)
NL (1) NL10067C (fr)

Also Published As

Publication number Publication date
DE379883C (de) 1923-08-29
FR525251A (fr) 1921-09-17
GB149214A (en) 1922-01-12
NL10067C (fr)

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