GB696988A - Improvements in or relating to automatic signalling systems - Google Patents

Improvements in or relating to automatic signalling systems

Info

Publication number
GB696988A
GB696988A GB25674/51A GB2567451A GB696988A GB 696988 A GB696988 A GB 696988A GB 25674/51 A GB25674/51 A GB 25674/51A GB 2567451 A GB2567451 A GB 2567451A GB 696988 A GB696988 A GB 696988A
Authority
GB
United Kingdom
Prior art keywords
relay
meter
line
series
primary
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
GB25674/51A
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.)
Philips Electrical Industries Ltd
Original Assignee
Philips Electrical Industries Ltd
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 Philips Electrical Industries Ltd filed Critical Philips Electrical Industries Ltd
Publication of GB696988A publication Critical patent/GB696988A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C1/00—Amplitude modulation
    • H03C1/50—Amplitude modulation by converting angle modulation to amplitude modulation
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/26—Push-pull amplifiers; Phase-splitters therefor
    • H03F3/28—Push-pull amplifiers; Phase-splitters therefor with tubes only

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Power Engineering (AREA)
  • Meter Arrangements (AREA)
GB25674/51A 1950-11-06 1951-11-02 Improvements in or relating to automatic signalling systems Expired GB696988A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL696988X 1950-11-06

Publications (1)

Publication Number Publication Date
GB696988A true GB696988A (en) 1953-09-09

Family

ID=19808904

Family Applications (1)

Application Number Title Priority Date Filing Date
GB25674/51A Expired GB696988A (en) 1950-11-06 1951-11-02 Improvements in or relating to automatic signalling systems

Country Status (3)

Country Link
BE (1) BE506899A (xx)
GB (1) GB696988A (xx)
NL (1) NL77225C (xx)

Also Published As

Publication number Publication date
NL77225C (xx)
BE506899A (xx)

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