DOCSLIB.ORG

Ifciiiii Y - ' Shidhilibliir..I 1

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Ifciiiii Y - ' Shidhilibliir..I 1 ' -..•■• « > Y - ; iBISIOftllllllfl.J. y B ■ '■ ■ '"•: ■'■■ • - ^": gill !■ ’ - -< Y “ A-. ::5 ' ? ££ „■ £ ■ . ■.■ ...S: .. ;Si®gKS|^^<YSaa ■..::,-:-;.:-.-:r. .. •• . ^•••■ yY^- Y?- - J ■ |.YY3ttgBS i® S«<1Y£y:<:Y’ -v;. :YJn:C;Y£ M... .;■ Y' Ay'y ' Y Y- .. -< Yd'' Y- •■ Y • Y/<YSYS:aag-Y<><YYJ:Y<YYY' Y< &YY ■ Y'< -W®==E4gES&YY®:fe;Y;: igffip£ YyY£Y;;sH^®JY;Y3yY?E::Y: ®s £77 ■■\<Y'<;;Y,Y^aY:£Y.ly YfYY- Syy'y.y ffi|iE?i|ridfflSKSYWSlY77- ■ c j ? <^iYyii®-Y, <> ■;'YYd./”-:Y'''--<®:®' / 1 "•■■■■■■ Y?Y-; - ||BS( ■• - 77/ PM 5-l:z. ’- ': -- ? # S g ffiferd dd ' ■ ■I:rdddd liil SI ■/-®®-YYYy:-''y\yy.';.' .77 : 7/ ■ BY7-Y777 t'd -Yd<Y/>d:rd;Y<'dY ' Y-;®d.......... — . 7 Y'■ ' Y-'y^ . ‘'vd dp.ifciiiii Y - ' sHidHiliBliir..i 1............... H Frontispiece: The Aerial Tower of the B.B.C. Television Transmitter at Alexandra Palace, North London {Courtesy of the B.B.C.) THE PRINCIPLES OF TELEVISION RECEPTION BY A. W. KEEN M.I.R.E.. M.BRIT.I.R.E., A.M.I.E.E. Fellow of the Television Society Formerly Jiesearch Engineer, R.F. Equipment, Ltd. Sometime Chief Instructor, No. 8 Radio School, R.A.F. LONDON SIR ISAAC PITMAN & SONS, LTD. First published 1949 Reprinted 1951 SIR ISAAC PITMAN & SONS, Ltd. PITMAN HOUSE, PARKER STREET, KINOSWAY, LONDON, W.C.2 THE PITMAN PRESS, BATH PITMAN HOUSE, LITTLE COLLINS STREET, MELBOURNE 27 BECKETTS BUILDINGS, PRESIDENT STREET, JOHANNESBURG ASSOCIATED COMPANIES PITMAN PUBLISHING CORPORATION 2 WEST 45TH STREET, NEW YORK SIR ISAAC PITMAN & SONS (CANADA), Ltd. (INCORPORATING THE COMMERCIAL TEXT BOOK COMPANY) PITMAN HOUSE, 381-383 CHURCH STREET, TORONTO MADE IN GREAT BRITAIN AT THE PITMAN PRESS, BATH El—(T.575) To all those ivho have contributed to the art of Television and in so doing have made possible the uniting of this book PREFACE Several years have passed since standards for high-definition cathode-ray television transmission were set up in this country and in the U.S.A., and although the war years have retarded progress, at least in a direct sense, the soundness of these standards has been proved by the satisfactory performance of normal commercial receivers. In view of the decision taken in both countries to resume transmissions on the pre-war standards, and of the prevailing economic situation, it seems unlikely that radical changes will be made in the transmission standards for some considerable time. It is felt, therefore, that television technique may be regarded as stabilized to an extent that justifies a systematic treatment of its basic principles, particularly in regard to reception, since receiving equipment is more likely to conform to a general pattern than transmitting equipment. The urgent demand, by the engineers of a receiver manufac­ turer’s servicing organization, for a lucid, descriptive treatment of reception principles (as distinct from the existing literature, which deals with television from a more specialized, advanced, or comprehensive point of view) was responsible for the produc­ tion of this book in its original form—as a short correspondence course. With the present increase of interest in, and production of, television equipment, it is felt that the book may be of service to a wider field. Accordingly, an attempt has been made to describe in clear, direct, and accurate terms, the principles underlying the technique of television reception. The treatment is qualitative and entirely non-mathematical, such mathematical aspects as are of fundamental importance being relegated to an appendix ; it is, however, largely theoretical in that it does not deal primarily with practical details of design or servicing. Since interest is centred on principles it is logical to have dealt to some extent with American technique, and it is hoped that vii viii PREFACE the selection of examples of circuit design for both standards will provide a better understanding of the art generally without leading to confusion. The book may be divided into four parts, as follows— (i) A general outline of the complete television process (Chapter I) as standardized here and in the U.S.A., for mono­ chromatic reproduction ; this brings out the more advanced nature of television technique by comparison with ordinary sound broadcasting and justifies the reinterpretation and exten­ sion of basic signal and circuit theory given in Chapter II. (ii) Stage-by-stage examination of the complete receiver working in conformity with established design and servicing pro­ cedure, from the picture tube and its auxiliaries (Chapter III) through the scanning (Chapter IV), synchronizing (Chapter V), and signal (Chapter VI) circuits to the vision receiver input. These chapters are followed by a review of methods of receiving the sound signal (Chapter VII) and in the succeeding chapter (VIII) several complete circuit schematics of com­ mercial receivers in current use are described in order to coordinate details given in the preceding chapters. (iii) A description of the receiver accessories, namely the aerial system (Chapter IX) and test equipment (Chapter X). (iv) A review of the problem of television transmission in natural colour, followed by an account of the two basic methods demonstrated to date. Each chapter includes a selection of suitable references which, together with the general guidance presented in Ap­ pendix II, introduce the reader to the general literature and facilitate further study. Particular care has been taken with terminology; the British usage has been preferred where variation exists and a list of equivalent terms has been provided for the benefit of American readers. (See p. xv.) In view of the modern preference for the terms “resistor” and “capacitor” I have felt it desirable to adopt “inductor” and reserve “coil” for actual windings only. Since a practical “coil” may in fact consist of several windings on a built-up PREFACE ix magnetic core and enclosed in a screen such a distinction would appear to be justified, and while this decision may be question­ able in the case of scanning and focusing “coils.” it has the merit of allowing consistent use of resistor, capacitor, and inductor, which practice is becoming more general both here and in the U.S.A. The book is published by kind permission of my former employers, R.F. Equipment, Ltd., of Langley Park, Bucks. 1 am fortunate in having worked under such pioneers as Messrs. O. S. Puckle and W. H. Stevens and am deeply grateful to the many members of the television and service departments of Sobell Industries, Ltd., who co-operated in producing the original MS. In rewriting and expanding the latter I have been fortunate in obtaining a great deal of information from commercial firms in this country and in the U.S.A.; these organizations are listed on p. x. I am grateful to Mr. D. Clatworthy for assistance with the drawings. I would be glad to receive (through the publishers) notice of errors and suggestions for improving the text. In conclusion I would like to acknowledge the tremendous amount of help and encouragement from my wife Barbara, but for whom the book could not have been written. A. W. KEEN Harrow December, 1947 A C K N O W LEDGM E N T S The following organizations have supplied information, as acknowledged in the text, and the author is grateful for the co-operation extended by their representatives— Belling & Lee, Ltd. British Broadcasting Corporation Cathodeon, Ltd. Cossor, Ltd. Edison Swan Electric Co., Ltd. E. K. Cole, Ltd. (“Ekco”) Electrical and Musical Industries (E.M.T.), Ltd. Electrical and Radio Trading Electronic Engineering Endeavour (I.C.I., Ltd.) General Electric Co., (U.S.A.) Haynes Radio, Ltd. Institute of Radio Engineers (U.S.A.) Marconi Instruments, Ltd. Murphy Radio, Ltd. Pliilco Corporation (U.S.A.) Pye, Ltd. Radio Corporation of America R.F. Equipment, Ltd. Sobell Industries, Ltd. The Gramophone Co. (H.M.V.) Westinghouse Electric Corp. (U.S.A.) Wireless and Electrical Trader Wireless World X C O N T E N T S PAGE Preface ........ Vii Table of Equivalent British and American Terms. XV CHAPTER I An Outline of the Television Process 1.1 The present position of television 1 1.2 The problem of picture transmission 2 1.3 The action of the electronic camera 3 I I The scanning process .... 9 1.5 The video-frequency signal . 12 1.6 Reconstruction of the picture at the receiver I I 1.7 Synchronizing the transmitter and receiver 16 1.8 The composite video signal Hi 1.9 D.C. modulation : brightness level 20 1.10. The complete television system . 23 1.11. The sound channel .... 26 1.12. Present frequency assignments 27 1.13. Summary of recent developments 27 Bibliography ... 28 CHAPTER II Basic Signal and Circuit Theory 2.1. Graphical representation of voltage and current variations ...... 30 2.2. Analysis of complex waveforms .... 33 2.3. Transient response of simple networks . 36 2.4. Simple wave-shaping networks .... 43 2.5. D.C. restoration. ..... 48 2.6. General features of special valve circuits in television receivers ...... 51 2.7. Basic valve circuit arrangements 53 2.8. The cathode input (“grounded-grid”) amplifier 53 2.9. The cathode-output (“cathode-follower”) amplifier 56 2.10. The “ bootstrap ” circuit . 58 2.11. Comparison of the three basic valve arrangements 58 2.12. The cathode-coupled double-triode amplifier. 59 Bibliography ...... 60 xi xii CONTENTS CHAPTER III The Picture Tube and its Auxiliary Circuits PAGE 3.1. Laws of electron motion in electric and magnetic fields 62 3.2. Functional description of the picture tube 66 3.3. The gun : prefocusing and intensity control . 71 3.4. The main focusing system : theory of focusing 72 3.5. The main focusing system: practical arrangements 75 3.6. The deflection system.
Load more

Recommended publications
  • Dovw No 62. the Journal of the British Amateur Television Club
    D OVw no 62 . The Journal of the British Amateur Television Club THE BRITISH AMATEUR TELEVISION CLUB C . Lacaille 29, Sandall Close, Ealing, W .5 . M .H . Cox 135, Mortlake Road, Richmond, Surrey . B .A .T .C . COMMI1TEE MEMBERS J .T . Lawrence 9 East Avenue, Hon . President S .N . Watson GW6JGA/T Bryn Newdd, Prestatyn, Flintshire, Chairman I . Waters 1, St . Audrey's Way, North Wales . G6KKD/T Lynn Road, Ely, Cambridgeshire . D .S . Reid c/o Hon . Treasurer . Hon . Treasurer M .J . Sparrow White Orchard, J . Royle Keepers Cottage, G6KQJ/T 64, Showell Lane, G3NOX/T Duddenhoe End, GBACB Penn, Wolverhampton . Nr . Saffron Walden, Essex . Hon . Secretary D . Mann 67, West Hill, G60UO/T Wembly Park, G . Sharpley 51, Ambleside Road, G8ADM Middlesex . G6LEE/T Flixton, G3LEE Urmston, Hon . Secretary N . Hampton 19, Grove Crescent, Lancashire . G60UH/T Kingsbury, N .W,9 . S . Woodward 44 Winton Road, Librarian C .G . Dixon Kyrles Cross, G6AAZ/T Reading, Pete rat ow, Berkshire . Ross on Wye, Herefordshire . B . Tebbutt 11, Revel Road, Wooburn Green, Hon . Editor J .E . Noakes 18, Dennis Road, High Wycombe, G6ABA/T East Molesey, Buckinghamshire . G8APC Surrey . C . Chivers Mortimer Street, Hon . Editor A .M . Hughes 16, Wilton Grove, Trowbridge, Wimbledon, S .W .19 . Wiltshire . FOR SALE 45 foot triangular lattice mast complete with fixings 8 over 3 element yagi aerial for 70 ems . 4 over 4 element yagi aerial for 2 metres . Three 3 inch image orthicon tube yokes (focus deflection alignment coils) . C .D .R. mast rotator with control box . Please contact either Hon Secretary . Our Chairman has held a leading position in the field of amateur television including many notable "firsts" in the twenty years or so during which he has been dabling in the art .
    [Show full text]
  • 980 Protocol Analyzer User Guide for MHL Compliance Testing
    980 HDMI 2.0 Video Generator - User Guide Rev. A11 980 HDMI 2.0 Video Generator Module User Guide Rev: A11 Page 1 October 6, 2017 980 HDMI 2.0 Video Generator - User Guide Rev. A11 Table of Contents 1. About the 980 HDMI 2.0 Video Generator Module 8 1.1 Scope of this User Guide 8 1.2 Changes to this User Guide 9 1.3 What options are available with the 980? 10 1.4 980 User Interface 13 2. Getting Started 14 2.2 What is shipped with the 980 HDMI 2.0 Video Generator module? 14 2.3 Operational workflow for HDMI Video Pattern Testing 14 3. Testing HDMI Displays with the 980 HDMI 2.0 Video Generator module 16 3.1 Workflow for running the video pattern testing of HDMI 2.0 displays 16 3.2 Connector Description 17 3.3 Making the physical HDMI connections 18 3.4 Navigating through the 980 GUI Manager interface 21 3.5 Selecting HDMI or DVI formats 26 3.6 Selecting formats (resolutions) 28 3.7 Configuring the format Settings 38 3.8 Selecting Test Patterns 41 3.9 Testing 3D Displays 48 3.10 Testing UHD Displays with UHD Alliance Test Patterns 53 3.11 Testing 4:2:0 Capable Displays 54 3.12 Testing UHD Displays with HDR Lab Test Patterns 57 3.13 Testing HDR Displays with HDR Test Patterns 87 3.14 Viewing the EDID of a connected display 91 3.15 Viewing the SCDC register contents of a connected display 97 3.16 Selecting audio formats 101 3.17 Testing HDCP 1.4 on a connected display 106 3.18 Testing HDCP 2.2 on a connected display 108 3.19 Configuring and Transmitting Custom Metadata Values with the InfoFrame Utility 114 3.20 Viewing Metadata Packets Transmitted to a Connected Display 124 4.
    [Show full text]
  • 1999-2017 INDEX This Index Covers Tube Collector Through August 2017, the TCA "Data Cache" DVD- ROM Set, and the TCA Special Publications: No
    1999-2017 INDEX This index covers Tube Collector through August 2017, the TCA "Data Cache" DVD- ROM set, and the TCA Special Publications: No. 1 Manhattan College Vacuum Tube Museum - List of Displays .........................1999 No. 2 Triodes in Radar: The Early VHF Era ...............................................................2000 No. 3 Auction Results ....................................................................................................2001 No. 4 A Tribute to George Clark, with audio CD ........................................................2002 No. 5 J. B. Johnson and the 224A CRT.........................................................................2003 No. 6 McCandless and the Audion, with audio CD......................................................2003 No. 7 AWA Tube Collector Group Fact Sheet, Vols. 1-6 ...........................................2004 No. 8 Vacuum Tubes in Telephone Work.....................................................................2004 No. 9 Origins of the Vacuum Tube, with audio CD.....................................................2005 No. 10 Early Tube Development at GE...........................................................................2005 No. 11 Thermionic Miscellany.........................................................................................2006 No. 12 RCA Master Tube Sales Plan, 1950....................................................................2006 No. 13 GE Tungar Bulb Data Manual.................................................................
    [Show full text]
  • PHOTOFACT, Technical Service Data
    PHOTOFACT, Technical Service Data INDEX SONY Adjustment and Alignment Tools .... 1 Model W-27EXR25 (Chassis SCC-D50F-A) Convergence Adjustments .......... 6 GridTrace Location Guide ABoard .................... .8 ..9 GBoard .................... .9 .8 PBoard-TopBoard ...........8 UlBoard .9 ................... .9 Important Parts Information ........ 10 Miscellaneous Adjustments ......... 6 PartsList ................. 9,10,11 Photos ABoard .................. .7,8 CBoard .................... .9 Cabinet - Rear View ........... 1 CRT Neck Assembly .......... 6 GBoard .................... .9 HBoard .................... .8 PBoard-BottomBoard ..... .7,8 PBoard-TopBoard ........ .7,8 Ul Board ................. .4,9 Complete coverage U2Board ................. .8,9 for servicing a television receiver... ! Troubleshooting Quick-Checks ABoard .................... .7 CBoard .................... .9 l Schematics l Parts lists PIP Adjustments .................. 6 Placement Chart ................. .5 l Component l Troubleshooting Safety Precautions ............... 1 locations guide Safety Related Adjustments ......... 6 Schematics CRT ....................... .2 Control ...................... Coverage includes this additional model and chassis: D/A Converter ................ 2 MODEL CHASSIS MTS Decoder ............... .3 KV-27EXR20 SCC-DSOE-A PIP .......................... 4 Power Supply ................ .4 Television ................... .2 Terminal Guides and Notes ........ .7 Test Equipment ................... 1 Troubleshooting ................... 1 Tuner
    [Show full text]
  • Xx1963-1988 Symp Digest
    Preliminary Table of Contents for SID Symposium Digests 1963-1988, Sorted on Lead Authors (authors' company affiliation not listed) Notes: 1 Both "Author" and "Title" fields are truncated The index covers full papers and keynote speeches for SID 2 Symposia from 1963 through 1988; panel sessions, seminars and luncheon speakers are not listed Authors' company affiliations are not 3 shown (to be added) The first ten (10 Symposia were identified by numbers, as follows: 4 2/1963 -#1; 9/63 - #2; 5/64-#3; 9/64 - #4; 2/65 - #5; 9/65 - #6; 10/66 - #7; 5/67 - #8; 5/68 - #9; 5/69 - #10 5/64-#3; 9/64 - #4; 2/65 - #5; 9/65 - #6; 10/66 - #7; 5/67 - #8; 5/68 - #9; 5/69 - #10 5 Color codes indicate aauthors who authors with two ()2) papers werelead authors for multple papers (where they are lead author) authors with three (3) papers Authors with 4 and 5 papers, respectively Year Session # Author(s) Page Title Abbey, C. G.* 1982 142 13 A Visual Simulator Image Generator using a Laser Scanned Model Abdalla, M. I.*; Plumb, J. L.; Hope, L. L. 1984 245 15 Large-Area ac Thin-Film EL Displays Abdalla, M. I.*; Thomas, J. A. 1978 130 14 Low Voltage DC Electroluminescence in ZnS (Mn, Cul Thin- Film Phosphors Abe, A.*; Matsuoka, T.; Tohda, T.; 1985 215 12 AC Thin-Film EL Display with PrMnO3 Black Dielectric Material Fujita, Y.; Nishikawa, M.; Kuwata, J. Abileah, Adi*; Vijan, Meera; Baron, Yair; 1988 420 22 Full-Color Displays with Amorphous-Silicon PIN Diodes Cannella, Vincent; McGill, John; Yaniv, for Military and Avionics Applications Zvi; Ukrainsky, Orest Abramson, N.*; Bjelkhagen, H.; Skande, 1980 224 21 Holographic System for Storing Information Interferometrically P.
    [Show full text]
  • RCA 1963 Catalogue
    T E L E V I S I O N CAM ERA E Q U I P M E N T (FIFTH EDITION) TV CAMERAS CAMERA LENSES CAMERA ACCESSORIES CAMERA MOUNTS LIGHTING EQUIPMENT MOBILE UNITS www.americanradiohistory.com TELEVISION CAMERA EQUIPMENT CATALOG Page TV Cameras Camera Lenses (Fifth Edition) PRICE $1.00 Camera Mounts Camera Accessories Lighting Equipment Mobile Units Index RADIO CORPORATION OF AMERICA Copyright IW,3. Raffia Corporation a/ America. Broadcast t n,. Proda,,. I bi,l.ian. amd.,n \. !. Tmk's, H www.americanradiohistory.com ABOUT THIS CATALOG This catalog provides information on RCA TV Camera equipment for television studio and closed circuit use. Other RCA Broadcast Equipment Catalogs supply information on film, TV tape, terminal, microwave and audio equipment; also on AM, FM and TV transmitters, antennas, and transmission line equipment. The information contained in this catalog is intended to serve as a buying guide for the user. Complete specifications and ordering information are supplied. Readers who desire more information or individual bulletins on particular equipment items are invited to write to their RCA Broadcast Representative. OTHER RCA TECHNICAL PRODUCTS RCA also manufactures many other electronic products, including: two -way radio and microwave relay communications equipment; optical and magnetic film recording equipment; sound systems of all types; 16mm projectors and magnetic recorders; industrial inspection and automation equipment; scientific instruments, such as the electron microscope; closed -circuit television systems; and many types of custom - built equipment for industry, the military, educational and medical services. Information describing these products may be obtained from RCA Sales Offices in the United States and Canada.
    [Show full text]
  • Probe Stations
    VACUUM AND CRYOGENIC (3 K TO 675 K) PROBE STATIONS: A Versatile Tool for Materials and Device Characterization Probe station cooling options Cryogenic refrigerator Liquid helium (LHe) or nitrogen (LN2) Vacuum and Cryogenic (3 K to 675 K) Probe Stations: A versatile tool for materials and device characterization 2 Cryogenic Refrigerator • Recirculating helium gas provides cooling. No LHe or LN2 is required. • Includes a compressor (air- or water-cooled), flexible metal supply and return gas lines, and refrigerator (cold head). • Base temperatures ranging from <4 K to 10 K. • Janis works with world leaders in cryocooler technology, including Sumitomo Heavy Industries (SHI) and Brooks Automation (CTI). Vacuum and Cryogenic (3 K to 675 K) Probe Stations: 3 A versatile tool for materials and device characterization More Probe Station Options Ultra High Vacuum Cryogenic & Room temperature Large sample size (200 mm) Vacuum and Cryogenic (3 K to 675 K) Probe Stations: 4 A versatile tool for materials and device characterization Electrical Probes Low Frequency (DC) Janis probe stations use standard commercially available probe tips Tips are easily removed and exchanged Tip materials include tungsten, beryllium copper, nickel, gold plated Tip point radius from 0.1 microns to 200 microns Tip configurations include low contact resistance, bendable, cat whisker, and others Low thermal contraction probe arms substantially reduce thermal drift of the probe tip Vacuum and Cryogenic (3 K to 675 K) Probe Stations: A versatile tool for materials and device
    [Show full text]
  • February 2011 CLASSIFICATION DEFINITIONS 313 - 1
    February 2011 CLASSIFICATION DEFINITIONS 313 - 1 CLASS 313, ELECTRIC LAMP AND DIS- mass. If the particles remain conductively insulated and CHARGE DEVICES the current is transmitted through the mass of particles by the arc or spark, then the device is included within SECTION I - CLASS DEFINITION the scope of Class 313. This is the generic class for electric lamp and electric For the excluded types of lightning arresters see Refer- space discharge device structure. ences to Other Classes, below. Examples of such devices are electric incandescent 4. Electric Lamp Provided With Structure For Holding lamps, gas or vapor filled electric discharge tubes, A Material To Be Heated - See References to Other including lamps, mercury arc devices, vacuum dis- Classes. charge tubes, radio tubes, cyclotrons, cathode-ray tubes, photosensitive discharge devices, secondary emission 5. Molecular Or Atomic Beam Devices - See Refer- electron multipliers, spark plugs, and open air arc and ences to Other Classes. spark devices. 6. Mass Spectrometers - See References to Other Classes. SECTION II - LINES WITH OTHER CLASSES AND WITHIN THIS CLASS 7. Electron Microscopes - See References to Other Classes. For specific class references where not provided in the sections below, see References to Other Classes that 8. Cathode Ray Oscillographs - See References to refer to the particular section title. Other Classes. A. LAMPS AND DISCHARGE DEVICE STRUC- 9. Consumable Electrode Discharge Devices (e.g., Arc TURE CLASSIFIED ELSEWHERe Lamps, etc.) - See References to Other Classes. 1. X-ray Tubes And Targets - See References to Other 10. Lamps And Discharge Devices Having A Circuit Classes. Element Included Therein 2.
    [Show full text]
  • 1999-2018 INDEX This Index Covers Tube Collector Through August 2018, the TCA "Data Cache" DVD- ROM Set, and the Following TCA Special Publications: No
    1999-2018 INDEX This index covers Tube Collector through August 2018, the TCA "Data Cache" DVD- ROM set, and the following TCA Special Publications: No. 1 Manhattan College Vacuum Tube Museum - List of Displays .........................1999 No. 2 Triodes in Radar: The Early VHF Era ...............................................................2000 No. 3 Auction Results ....................................................................................................2001 No. 4 A Tribute to George Clark, with audio CD ........................................................2002 No. 5 J. B. Johnson and the 224A CRT.........................................................................2003 No. 6 McCandless and the Audion, with audio CD......................................................2003 No. 7 AWA Tube Collector Group Fact Sheet, Vols. 1-6 ...........................................2004 No. 8 Vacuum Tubes in Telephone Work.....................................................................2004 No. 9 Origins of the Vacuum Tube, with audio CD.....................................................2005 No. 10 Early Tube Development at GE...........................................................................2005 No. 11 Thermionic Miscellany.........................................................................................2006 No. 12 RCA Master Tube Sales Plan, 1950....................................................................2006 No. 13 GE Tungar Bulb Data Manual.................................................................
    [Show full text]
  • Fishn $00 Fftmily of Receivers
    SpecialIssue: A Tribute to AveryFisher and The Fisher Line of Tube Receivers • Editor's Page / Tube Industry News 2 In This Issue Fishn$00 Fftmilyo fR eceivers • Fisher 500 � The Start ofa Generation 3 • A Tribute to AveryFisher 10 Design, Historyand Restoration • Book Review· "Tube Lore" 12 6$$0 IJruJKT88 - ThePOtlJet Kings • neRmuWlAmplijier P",!ject I4 Comparisons Between New and NOS TJpes • Story of the Loftin . White Amplifier 17 • Tbe Power Kings - 6550 and KT88 21 • The Audio Test Bench· Oscilloscopes 25 • UncleEric's Dumpster - Type 5687 31 O,,-!hte tube audio buy/sellwallt ads, librtlly of articles, li"ks to other tube web sites aftd more. www.vacuumtube.com , E 0 I T 0 R S P A G E A N 0 I N D U S T R Y N E W s Svetlana Announce5 New J'coducl$ U$S550 and th� AV52B SL will be US $750 Editor's Page and Industry each. For more information contact: Svedana Electron Devices has inuoduced Pe,er Q>xm,up News its SV572 series of l2S-wan power !riodes for Audio No,� UK Ltd. high-end audio amps. This series is available by Charlie Kittleson, Editor Uni, C. Pe.cock Ind. with mu of 3, 10, 30 and 160 for a variety of E."a« L)"onCIas<c SE or push-pull applications. Sved:ma also 12';-127 O.vigdor R.o..d Due !O Eric Barbour's r«em employment introduces irs newSV6L6GC, a dose copy of with Svedana Electronic Devi<ecs, I have taken the classic Sylvania 6L6GClSTR387 with Ho,"e.
    [Show full text]
  • Wireless World Radio Valve Data
    This document was generated by me, Colin Hinson, from a document held at R.A.F. Henlow Signals Museum and is believed to be out of copyright or Crown Copyright . It is presented here (for free) under the Open Government Licence (O.G.L.) if under Crown Copyright and this version of the document is my copyright (along with the Crown Copyright) in much the same way as a photograph would be. If you believe the document to be under copyright, please contact me. The document should have been downloaded from my website https://blunham.com/Radar, if you downloaded it from elsewhere, please let me know (particularly if you were charged for it). You can contact me via my Genuki email page: https://www.genuki.org.uk/big/eng/YKS/various?recipient=colin You may not copy the file for onward transmission of the data nor attempt to make monetary gain by the use of these files. If you want someone else to have a copy of the file, point them at the website. It should be noted that most of the pages are identifiable as having been processed my me. _______________________________________ I put a lot of time into producing these files which is why you are met with the above when you open the file. In order to generate this file, I need to: 1. Scan the pages (Epson 15000 A3 scanner) 2. Split the photographs out from the text only pages 3. Run my own software to split double pages and remove any edge marks such as punch holes 4.
    [Show full text]
  • A Beam-Indexing Color Picture Tube – the Apple Tube*
    1956 PROCEEDINGS OF THE IRE 1115 A Beam-Indexing Color Picture Tube – The Apple Tube* G. F. BARNETT†, MEMBER, IRE, F. J. BINGLEY†, FELLOW, IRE, S. L. PARSONS†, G. W. PRATT†, MEMBER, IRE, AND M. SADOWSKY† Summary – This paper describes the Apple color picture tube, its dimensions, materials of construction, deflection and focus systems, and the geometry and deposition of the phosphor and secondary-emissive screen materials. The construction and operation of the electron gun, which produces two independent beams of very small cross section from a single cathode, are described in detail. Life test data and pilot production experience are discussed. INTRODUCTION THE APPLE concept as described in the previous paper places some very special requirements on the cathode-ray tube. The essence of the Apple development has been to design a tube in which the task of maintaining tight tolerances is relegated to the manufacturing equipment rather than to the tube itself, where it would have to be faced every time a tube is made. Corresponding to the many possible variations of Apple color systems, there are an equivalent number of variations of Apple tube designs. Rather than attempt to consider these Fig. 1 – Apple tube. in general terms, it is considered wiser to describe a specific representative example, the type of tube used in a system described in the previous paper and utilizing the circuits to 4) The spacing of triplets: must be varied and the lines be described in the following paper. bent so that maximum circuit economy can be achieved by The Apple color picture tube (see Fig.
    [Show full text]