GB520349A - Improvements in or relating to electrical testing apparatus - Google Patents

Improvements in or relating to electrical testing apparatus

Info

Publication number
GB520349A
GB520349A GB3020538A GB3020538A GB520349A GB 520349 A GB520349 A GB 520349A GB 3020538 A GB3020538 A GB 3020538A GB 3020538 A GB3020538 A GB 3020538A GB 520349 A GB520349 A GB 520349A
Authority
GB
United Kingdom
Prior art keywords
oscillation
frequency
valve
line
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
GB3020538A
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.)
AMHERST FELIX HOME THOMSON
Scophony Ltd
Original Assignee
AMHERST FELIX HOME THOMSON
Scophony 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
Priority to BE461422D priority Critical patent/BE461422A/xx
Application filed by AMHERST FELIX HOME THOMSON, Scophony Ltd filed Critical AMHERST FELIX HOME THOMSON
Priority to GB3020538A priority patent/GB520349A/en
Publication of GB520349A publication Critical patent/GB520349A/en
Priority to FR918782D priority patent/FR918782A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N17/00—Diagnosis, testing or measuring for television systems or their details
    • H04N17/04—Diagnosis, testing or measuring for television systems or their details for receivers
    • H04N17/045—Self-contained testing apparatus

Landscapes

  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • General Health & Medical Sciences (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
GB3020538A 1938-10-19 1938-10-19 Improvements in or relating to electrical testing apparatus Expired GB520349A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
BE461422D BE461422A (enrdf_load_stackoverflow) 1938-10-19
GB3020538A GB520349A (en) 1938-10-19 1938-10-19 Improvements in or relating to electrical testing apparatus
FR918782D FR918782A (fr) 1938-10-19 1945-12-13 Appareil électrique de contrôle pour l'essai des récepteurs de télévision

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3020538A GB520349A (en) 1938-10-19 1938-10-19 Improvements in or relating to electrical testing apparatus

Publications (1)

Publication Number Publication Date
GB520349A true GB520349A (en) 1940-04-22

Family

ID=10303942

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3020538A Expired GB520349A (en) 1938-10-19 1938-10-19 Improvements in or relating to electrical testing apparatus

Country Status (3)

Country Link
BE (1) BE461422A (enrdf_load_stackoverflow)
FR (1) FR918782A (enrdf_load_stackoverflow)
GB (1) GB520349A (enrdf_load_stackoverflow)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2559388A (en) * 1949-07-06 1951-07-03 Electronics Res Inc Television receiver testing apparatus
US2595646A (en) * 1947-06-02 1952-05-06 Bell Telephone Labor Inc Television test signal generator
US2683187A (en) * 1951-02-28 1954-07-06 Rca Corp Method of and means for testing color television apparatus
US2700699A (en) * 1950-06-20 1955-01-25 Video Television Inc Synchro-sweep generator
US2975229A (en) * 1954-06-30 1961-03-14 Rca Corp Television test apparatus

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2595646A (en) * 1947-06-02 1952-05-06 Bell Telephone Labor Inc Television test signal generator
US2559388A (en) * 1949-07-06 1951-07-03 Electronics Res Inc Television receiver testing apparatus
US2700699A (en) * 1950-06-20 1955-01-25 Video Television Inc Synchro-sweep generator
US2683187A (en) * 1951-02-28 1954-07-06 Rca Corp Method of and means for testing color television apparatus
US2975229A (en) * 1954-06-30 1961-03-14 Rca Corp Television test apparatus

Also Published As

Publication number Publication date
BE461422A (enrdf_load_stackoverflow)
FR918782A (fr) 1947-02-18

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