Pub Date : 1962-04-01DOI: 10.1109/TBTR2.1962.4503191
H. Wittlinger, J. Dean
Techniques which are generally applicable to high-voltage deflection tubes are discussed in this paper, with specific application to television horizontal-deflection amplifiers. In an entirely new approach to testing horizontal-deflection amplifiers, the tubes are tested in circuits that closely simulate actual operating conditions. Six separate tests have been replaced by a single test. Carefully controlled test conditions and the development of several unique detectors for these tests have resulted in repeatable and reproducible results. Although the circuits have become more complex as a result of simplifying the testing procedures, cost of over-all testing has been reduced and product quality has been improved.
{"title":"A New Approach to Testing High-Voltage Deflection Tubes","authors":"H. Wittlinger, J. Dean","doi":"10.1109/TBTR2.1962.4503191","DOIUrl":"https://doi.org/10.1109/TBTR2.1962.4503191","url":null,"abstract":"Techniques which are generally applicable to high-voltage deflection tubes are discussed in this paper, with specific application to television horizontal-deflection amplifiers. In an entirely new approach to testing horizontal-deflection amplifiers, the tubes are tested in circuits that closely simulate actual operating conditions. Six separate tests have been replaced by a single test. Carefully controlled test conditions and the development of several unique detectors for these tests have resulted in repeatable and reproducible results. Although the circuits have become more complex as a result of simplifying the testing procedures, cost of over-all testing has been reduced and product quality has been improved.","PeriodicalId":136909,"journal":{"name":"Ire Transactions on Broadcast and Television Receivers","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1962-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126643662","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1962-04-01DOI: 10.1109/TBTR2.1962.4503189
H. O. Wood
{"title":"PGBTR Technical Communication","authors":"H. O. Wood","doi":"10.1109/TBTR2.1962.4503189","DOIUrl":"https://doi.org/10.1109/TBTR2.1962.4503189","url":null,"abstract":"","PeriodicalId":136909,"journal":{"name":"Ire Transactions on Broadcast and Television Receivers","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1962-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114247980","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1962-04-01DOI: 10.1109/TBTR2.1962.4503190
Arnold G. Skrivseth
This paper is a sequel to one given on October 6, 1961, at the Washington, D. C. meeting of the Professional Group on Broadcasting and published in the December, 1961 transactions of that group. The present status of the Commission's New York UHF-TV Project is described along with comments and tentative conclusions based on early results.
{"title":"Early Returns from WUHF","authors":"Arnold G. Skrivseth","doi":"10.1109/TBTR2.1962.4503190","DOIUrl":"https://doi.org/10.1109/TBTR2.1962.4503190","url":null,"abstract":"This paper is a sequel to one given on October 6, 1961, at the Washington, D. C. meeting of the Professional Group on Broadcasting and published in the December, 1961 transactions of that group. The present status of the Commission's New York UHF-TV Project is described along with comments and tentative conclusions based on early results.","PeriodicalId":136909,"journal":{"name":"Ire Transactions on Broadcast and Television Receivers","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1962-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126525817","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1962-04-01DOI: 10.1109/TBTR2.1962.4503193
P. A. V. Berkum, J. Sinclair, K. Raney
A ceramic transformer made from a piezoelectric material such as polarized BaTiO3 can be designed to have a voltage step-up of about 60 at 15 KC/S. The design of such a transformer is described. Equations giving step-up ratio and losses as a function of piezoelectric coefficients and transformer dimensions are derived. Experimental results are given and discussed. BaTiO3 transformers begin to show a strong decrease in performance if the electric field strength in the material exceeds 250 volts per cm. The operation of ceramic transformers at various wavelengths is covered. Finally, the operation of ceramic transformers in vacuum is considered.
{"title":"High Voltage Ceramic Transformers","authors":"P. A. V. Berkum, J. Sinclair, K. Raney","doi":"10.1109/TBTR2.1962.4503193","DOIUrl":"https://doi.org/10.1109/TBTR2.1962.4503193","url":null,"abstract":"A ceramic transformer made from a piezoelectric material such as polarized BaTiO3 can be designed to have a voltage step-up of about 60 at 15 KC/S. The design of such a transformer is described. Equations giving step-up ratio and losses as a function of piezoelectric coefficients and transformer dimensions are derived. Experimental results are given and discussed. BaTiO3 transformers begin to show a strong decrease in performance if the electric field strength in the material exceeds 250 volts per cm. The operation of ceramic transformers at various wavelengths is covered. Finally, the operation of ceramic transformers in vacuum is considered.","PeriodicalId":136909,"journal":{"name":"Ire Transactions on Broadcast and Television Receivers","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1962-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121158952","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1962-04-01DOI: 10.1109/TBTR2.1962.4503201
R. Webster
The semiconductor industry can look forward to an attractive market in the television field with a potential of 120 million devices per year, based on 1961 TV sales figures. Price and performance are the determining factors in the choice of the transistor over the vacuum tube. In many applications of present technology, transistors are superior in performance; however, costs must necessarily be reduced for the final conversion.
{"title":"The Future of Transistors in Television Receivers","authors":"R. Webster","doi":"10.1109/TBTR2.1962.4503201","DOIUrl":"https://doi.org/10.1109/TBTR2.1962.4503201","url":null,"abstract":"The semiconductor industry can look forward to an attractive market in the television field with a potential of 120 million devices per year, based on 1961 TV sales figures. Price and performance are the determining factors in the choice of the transistor over the vacuum tube. In many applications of present technology, transistors are superior in performance; however, costs must necessarily be reduced for the final conversion.","PeriodicalId":136909,"journal":{"name":"Ire Transactions on Broadcast and Television Receivers","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1962-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122616142","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1962-04-01DOI: 10.1109/TBTR2.1962.4503197
B. Loughlin
{"title":"A Review of Some of the Recent Developments in Color TV","authors":"B. Loughlin","doi":"10.1109/TBTR2.1962.4503197","DOIUrl":"https://doi.org/10.1109/TBTR2.1962.4503197","url":null,"abstract":"","PeriodicalId":136909,"journal":{"name":"Ire Transactions on Broadcast and Television Receivers","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1962-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124849435","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1962-04-01DOI: 10.1109/TBTR2.1962.4503192
J. Sinclair
{"title":"ICO - Where and How much","authors":"J. Sinclair","doi":"10.1109/TBTR2.1962.4503192","DOIUrl":"https://doi.org/10.1109/TBTR2.1962.4503192","url":null,"abstract":"","PeriodicalId":136909,"journal":{"name":"Ire Transactions on Broadcast and Television Receivers","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1962-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121514179","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1962-04-01DOI: 10.1109/TBTR2.1962.4503200
G. W. Sioles, B. Bauer
It has long been recognized that very low tracking forces in phonograph pickups will minimize wear of the record and styli. Another advantage of low tracking force is the reduction in wavelength loss. Two factors tend to place a limit on the minimum tracking force which can be used. One is the mechanical impedance of the pickup and the other is the stability of the pickup-tone arm system when subjected to jarring. Tracking force of approximately 2 grams is usual in high-priced manual players which are handled carefully by relatively skilled people. However, in most home phonographs tracking force is found to be above 6 gms. to insure stability when subjected to vibration. This paper describes a tone arm configuration which was developed to allow tracking at 2 grams in automatic record changers with a low mechanical impedance pickup described in a companion paper. As an additional benefit the new tone arm protects records by preventing damage due to accidental scratching or dropping of the tone arm.
{"title":"A Stereo Tone Arm for Tracking at 2 grams on a Record Changer","authors":"G. W. Sioles, B. Bauer","doi":"10.1109/TBTR2.1962.4503200","DOIUrl":"https://doi.org/10.1109/TBTR2.1962.4503200","url":null,"abstract":"It has long been recognized that very low tracking forces in phonograph pickups will minimize wear of the record and styli. Another advantage of low tracking force is the reduction in wavelength loss. Two factors tend to place a limit on the minimum tracking force which can be used. One is the mechanical impedance of the pickup and the other is the stability of the pickup-tone arm system when subjected to jarring. Tracking force of approximately 2 grams is usual in high-priced manual players which are handled carefully by relatively skilled people. However, in most home phonographs tracking force is found to be above 6 gms. to insure stability when subjected to vibration. This paper describes a tone arm configuration which was developed to allow tracking at 2 grams in automatic record changers with a low mechanical impedance pickup described in a companion paper. As an additional benefit the new tone arm protects records by preventing damage due to accidental scratching or dropping of the tone arm.","PeriodicalId":136909,"journal":{"name":"Ire Transactions on Broadcast and Television Receivers","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1962-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131264233","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1962-04-01DOI: 10.1109/TBTR2.1962.4503195
N. Parker, D. W. Ruby
Equations are developed which determine the S/N ratio for both a monophonic and stereophonic signal including the effect of deemphasis. A S/N ratio loss of 23 Db is indicated.
推导了单声道和立体声信号的信噪比方程，并考虑了消重音的影响。信噪比损失为23db。
{"title":"Some Notes On The Calculation of the S/N Ratio For a FM System Employing a Double Sideband AM Multiplex Signal","authors":"N. Parker, D. W. Ruby","doi":"10.1109/TBTR2.1962.4503195","DOIUrl":"https://doi.org/10.1109/TBTR2.1962.4503195","url":null,"abstract":"Equations are developed which determine the S/N ratio for both a monophonic and stereophonic signal including the effect of deemphasis. A S/N ratio loss of 23 Db is indicated.","PeriodicalId":136909,"journal":{"name":"Ire Transactions on Broadcast and Television Receivers","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1962-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131156203","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1962-04-01DOI: 10.1109/TBTR2.1962.4503199
A. Mattia, E. Kaulins, B. Bauer
The pickup described will track with a vertical force of 2 grams, on simple but properly designed tone arms. It has a mechanical compliance 6 cm x l0 -6 / dyne and an effective mass of about 1.4 mg. Output is 0.35 volt. A combination of optimum rubber properties and viscous damping provide a sponse free of resonances.
{"title":"A Stereophonic Ceramic Pickup Cartridge for 2 gram Tracking","authors":"A. Mattia, E. Kaulins, B. Bauer","doi":"10.1109/TBTR2.1962.4503199","DOIUrl":"https://doi.org/10.1109/TBTR2.1962.4503199","url":null,"abstract":"The pickup described will track with a vertical force of 2 grams, on simple but properly designed tone arms. It has a mechanical compliance 6 cm x l0 -6 / dyne and an effective mass of about 1.4 mg. Output is 0.35 volt. A combination of optimum rubber properties and viscous damping provide a sponse free of resonances.","PeriodicalId":136909,"journal":{"name":"Ire Transactions on Broadcast and Television Receivers","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1962-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125905898","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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