DOCSLIB.ORG

26-Apr-17 Valve Database Page 1 Type Num Equivalent Description

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text

Load more

Valve Database 26-Apr-17 Type Num Equivalent Description NEW USED 0A2 150C4 Voltage Regulator 6 13 0A3 VR75 Voltage Regulator 7 1 0B2 Voltage Regulator 1 4 0B3 Voltage Regulator 1 1 0C3 VR105 Voltage Regulator 16 11 0D3 VR150/30 Voltage Regulator 4 16 0G3 85A2 Voltage Reference 0 9 0Z4 Full Wave GF Rectifier 4 2 10CW5 Power Pentode 3 0 10GN8 High µ Triode Sharp Cut-off Pentode 3 0 117Z6 Full Wave Vacuum Rectifier 0 2 11AR11 Twin Pentode Compactron 2 2 11BM8 High µ Triode Power Pentode 1 0 11BQ11 Dissimilar Twin Pentode 0 1 11KV8 High µ Triode Sharp Cut-off Pentode 3 0 11MS8 High µ triode BeamPower Tube 1 0 1201 7E5 Triode 0 1 1204 7AB7 UHF Pentode 3 0 12A6 VT134 Beam Power Amplifier 2 10 12A7 Rectifier Power Output Pentode 1 0 12A8G Pentagrid 0 1 12AB5 Beam Power Tetrode 1 0 12AD6 Pentagrid for use with 12v Car Batte 1 4 12AH7GT Twin Triode 0 6 12AH8 Triode Heptode 2 0 12AN7 Triode Hexode 0 0 12AQ5 Beam Power Tetrode 2 5 12AT6 Duo Diode High µ Triode 3 0 12AT7 CV455 High µ Twin Triode 3 51 12AU6 Sharp Cut-off Pentode 1 0 12AU7A ECC82 Medium µ Twin Triode 19 54 12AV6 Duo Diode High µ Triode 5 6 12BA6 Medium Cut-off RF Pentode 0 14 12BE6 Pentagrid 0 2 12BH7 Medium µ Twin Triode 0 9 12BL6 Sharp Cut-off RF Pentode 1 1 Page 1 Valve Database 26-Apr-17 Type Num Equivalent Description NEW USED 12BT3 Half Wave Rectifier 0 1 12BY7A Sharp Cut-off Rf Pentode 16 28 12C8 Duo Diode Medium Cut-off Pentode 0 1 12DQ6A Beam Power tetrode 3 1 12EI CV345 Beam Tetrode 0 1 12FK6 Duo Diode Medium µ Triode for 12v 2 1 12GB7 Beam Power Pentode 0 1 12GN7 Sharp Cut-off Pentode 4 0 12H6 Twin Triode 0 2 12HG7 Sharp Cut-off Pentode 4 0 12HG8 Medium µ Triode High Slope Pentod 0 2 12HL7 Sharp Cut-off Pentode 4 0 12J5GT CV534/VT135 Detector Amplifier Triode 0 6 12J8 Duo Diode Power Tetrode 1 0 12K7GT Remote Cut-off RF Pentode 0 1 12K8 Triode Hexode 1 3 12Q7G Duo Diode High µ Triode 1 0 12SA7 Pentagrid 0 2 12SC7 Twin Triode 0 3 12SF7 Diode Remote Cut-off RF Pentode 1 1 12SG7 VT209 Medium Cut-off RF Pentode 0 5 12SJ7 Sharp Cot-off Pentode 0 1 12SK7 VT131 Remote Cut-off Rf Pentode 1 7 12SN7GT Twin Triode 2 2 12SQ7 Duo Diode High µ Triode 2 2 12SR7 Duo Diode Triode 0 2 12X4 Full Wave Vacuum Rectifier 8 9 12Z3 Half Wave Vacuum Rectifier 0 1 14B6 6SQ7GT Duo Diode High µ Triode 0 1 14GW8 PCL86 Triode Pentode 4 0 14J7 7J7 Triode Heptode 0 1 1561 Full Wave Vacuum Rectifier 0 3 15A6 Video Output Pentode 2 0 15BD11 Twin Triode Sharp Cut-off Pentode 1 1 15CW5 Power Pentode 5 0 15DQ8 High µ Triode Sharp Cut-off Pentode 4 0 Page 2 Valve Database 26-Apr-17 Type Num Equivalent Description NEW USED 15KY8 High µ Triode Beam Power Tube 3 0 1616 Half Wave High Vacuum Rectifier 1 6 1625 Beam Power Amplifier 11 18 1626 CV1755/VT137 Triode 0 3 1629 CV1756 Tuning Indicator 0 5 164V LF Amplifier 0 1 16A5 PL82 Power Pentode 3 3 16A8 High µ Triode Power Pentode 4 4 17AY3 Half Wave Vacuum Rectifier 3 0 17BF11 Sharp Cut-off Dual Pentode 4 2 17DQ6 17GW6 Beam Power Tube 2 0 17DW4 17BS3A Half Wave Vacuum Rectifier 3 0 17JZ8 Compactron Triode Pentode 4 2 17KW6 PL508 Pentode 1 0 17Z3 Half Wave Vacuum Rectifier 7 3 185BT CV1980 Pentode 0 2 1867 Full wave Vacuum Rectifier 0 2 18GV8 PCL85 Medium µ Triode Power Pentode 3 1 19 Twin Power O/P Triode 4 4 19T8 Triple Diode High µ Triode 4 0 1A4 1D5GT Remote Cut-off RF Tetrode 0 2 1A5 Power Output Pentode 0 6 1A7 Pentagrid 0 12 1AC6 Heptode 1 0 1AD4 CV2237 Sharp Cut-off Pentode 5 0 1AJ4 Sharp Cut-off RF Pentode 1 0 1B3GT Half Wave Vacuum Rectifier 6 10 1B5 Duo Diode Triode 2 2 1BC2A Half Wave Vacuum Rectifier 3 0 1BQ2 High Vacuum Rectifier 6 0 1C2 Pentagrid 0 1 1C4 1M5G Remote Cut-off RF Pentode 4 4 1C5G Power Output Pentode 0 2 1C6 1C7G Pentagrid 3 3 1C7G Pentagrid 0 9 1D4 1L5G Power Output Pentode 2 4 Page 3 Valve Database 26-Apr-17 Type Num Equivalent Description NEW USED 1D5G 1D5GT Remote Cut-off RF Tetrode 1 4 1D8GT Diode Triode Pwr Output Pentode 2 10 1E7GT Twin Power Pentode 1 0 1F4 Power Output Pentode 0 1 1F5 Power Output Pentode 0 1 1H4G Detector Amplifier Triode 1 1 1H5GT Diode High µ Triode 1 9 1H6G Duo Diode Triode 1 1 1K3 1J3 Half Wave Vacuum Rectifier 5 0 1K5 Sharp Cut-off Pentode 3 3 1K6 1K7G Duo Diode Sharp Cut-off Pentode 1 3 1K7 Duo Diode Sharp Cut-off Pentode 0 2 1L4 Sharp Cut-off Pentode 13 2 1L5G Power Output Pentode 0 12 1LB4 Power Output Pentode 0 3 1LE3 Amplifier Triode 0 1 1LN5 Sharp Cut-off RF Pentode 0 2 1M5G Remote Cut-off RF Pentode 0 15 1N5G Sharp Cut-off RF Pentode 0 1 1P5G Remote Cut-off RF Pentode 0 17 1Q5G Beam Power Output Tetrode 2 12 1R5 Pentagrid 6 53 1S2 1S2A Half Wave Vacuum Rectifier 4 17 1S4 Power Output Pentode 2 0 1S5 CV784/DAF91 Diode Sharp Cut-off Pentode 5 48 1T4 CV1971/DF91 Remote Cut-off RF Pentode 13 87 1U4 Sharp Cut-off RF Pentode 2 7 1U5 1S5 Diode Sharp Cut-off Pentode 3 4 1V2 Half Wave Vacuum Rectifier 6 0 1X2A Half Wave Vacuum Rectifier 1 3 1X2B Half Wave Vacuum Rectifier 8 0 2051 CV1798/20A2 Gas Filled Tetrode 0 1 20AQ3 Diode 3 0 210RC Triode 0 1 21A6 Power Pentode 3 0 21GY5 Beam Pentode 2 0 Page 4 Valve Database 26-Apr-17 Type Num Equivalent Description NEW USED 21HB5 Beam Power Tube 0 1 21LR8 Triode Pentode 2 0 221 Gas Filled Rectifier 0 1 227 56 Triode 0 6 22JF6 Beam Power Tube 2 0 235 51 Remote Cut-off RF Pentode 0 1 23Z9 Compactron Dissimilar Twin Triode 3 0 247 47 Power Output Pentode 0 1 24A 224 RF Tetrode 1 10 257 58 Remote Cut-off RF Pentode 2 0 25A6G Power Output Pentode 8 2 25E5 Power Pentode 7 6 25L6G Beam Power Output Tetrode 3 6 25Y5 Full Wave Vac Rectifier 0 1 25Z5 25Z6 Full Wave Vac Rectifier 4 1 25Z6 Full Wave Vac Rectifier 3 3 26 Triode 1 8 26AQ8 UCC85 High µ Twin Triode 4 0 27 F209 Detect Amp Triode 0 12 274 Full Wave High Vacuum Rectifier 0 1 27GB5 EL500/PL500A/C Beam Power Tube 5 0 280 83 Full Wave Gas Filled Rectifier 0 3 29C1 CV430 High Vacuum Control Diode 0 2 2A5 42 Power Output Pentode 0 11 2A6 75 Duo Diode High µ Triode 1 2 2A7 6A7 Pentagrid 0 6 2AS2 Half Wave Vacuum Rectifier 3 0 2AV2 Half Wave Vacuum Rectifier 3 0 2B7 6B7G Duo Diode Medium Cut-off Pentode 1 4 2C39A CV2516/3CX100A High μ UHF Triode 5 3 2C51 Medium µ Twin Triode 2 0 2D21 CV797/5727/PLZ Gas Filled Tetrode 7 5 2E26 CV3990 VHF Beam Power Amplifier 0 7 2K25 CV1795 Klystron 1 0 2X2 2X2A/879/VT119 Half Wave Vacuum Rectifier 1 8 30 1H4G Detect Amp Triode 0 4 Page 5 Valve Database 26-Apr-17 Type Num Equivalent Description NEW USED 30A5 Power Output Pentode 0 4 30AE3 Half Wave Vacuum Rectifier 4 0 30FL2 Triode 1 0 313C 4313C/CV75 Cold Cathode Gas-filled Relay 0 1 32 RF Tetrode 0 2 32L7GT Rect Beam Power Output Tetrode 3 4 33 Power Output pentode 1 3 33GY7 Diode Pentode 3 2 34 Medium Cut-off RF Pentode 0 3 35 51 Remote Cut-off RF Pentode 0 11 354V Detector 0 1 35C5 Beam Power Tube 3 0 35L6GT Beam Power Output Tetrode 1 0 35W4 Half Wave Vac Rectifier 0 1 35Z4ZGT Half Wave Vac Rectifier 0 1 35Z5 Half Wave Vacuum Rectifier 0 1 36 RF Tetrode 0 1 38 Power Output Pentode 0 2 38HE7 Diode Pentode 0 2 3A3 Half Wave Vacuum Rectifier 6 0 3A4 Power Output Pentode 1 3 3A5 HF Twin Triode 0 3 3AT2B Half Wave Vacuum Rectifier 3 0 3AW2A Half Wave Vacuum Rectifier 3 0 3BZ6 Semi Remote Cut-off RF Pentode 3 0 3C4 Power Output Pentode 1 0 3CU3A Half Wave Vacuum Rectifier 2 0 3CX100A5 7289/2C39A High μ UHF Triode 1 0 3GK5 High µ Triode 4 0 3HM5 High µ Triode 3 0 3Q4 3V4 Power Output Pentode 1 2 3S4 Power Output Pentode 2 9 3V4 CV2983/DL94 Power Output Pentode 4 48 4039A Mercury Vapour Relay 0 4 4061A CV1369 Pentode 0 1 41 6K6G Power Output Pentode 1 10 Page 6 Valve Database 26-Apr-17 Type Num Equivalent Description NEW USED 42 6F6G Power Output Pentode 0 30 427 27 Detector Amplifier Triode 0 1 4282B Tetrode 0 2 42EC4A PY500A TV Booster Diode 0 1 43 25A6 Power Output Pentode 0 7 4311B Repeater Pentode 0 1 46 Power Output Triode 0 1 47 Power Output Pentode 0 10 4BZ6 Semi Remote Cut-off RF Pentode 4 0 4CM4 High Slope UHF Triode 5 0 4DL4 PC88 Triode 3 0 4EH7 Semi Remote Cut-off Pentode 3 0 4EJ7 Sharp Cut-off Pentode 3 0 4GK5 High Mµ Triode 1 1 4HA5 PC900 VHF Triode 4 0 50C5 Beam Power Tube 3 0 50EH5 Power Pentode 1 4 50L6GT 25L6GT Beam Power Output Tetrode 3 3 55 85 Duo Diode Triode 2 2 56 6P5G/76 Triode 0 5 5651 Cold Cathode Gas Filled Glow Discha 2 0 5654 Sharp Cut-off RF Pentode 1 2 5670 Medium µ Twin Triode 2 0 5676 Triode 7 0 5678 CV2254 Subminiature RF Pentode 0 3 57 6J7/6C6 Sharp Cut-off Pentode 1 45 5755 Dual Triode 1 5763 VHF Beam Power Amplifier 0 1 58 6U7G/6D6 Remote Cut-off RF Pentode 0 15 5814 12AU7/CV4016 Medium µ Twin Triode 0 3 5842 CV3789/417A High µ Triode SQ 0 0 59 Power Output Pentode 0 8 5A6 Beam Pentode 15 0 5AQ5 Beam Power Tube 3 0 5AR4 GZ34 Full Wave Vacuum Rectifier 0 0 5AS4 Full Wave Vacuum Rectifier 0 60 Page 7 Valve Database 26-Apr-17 Type Num Equivalent Description NEW USED 5EA8 Medium µ Triode Sharp Cut-off Pent 3 0 5GJ7 Medium µ Triode Sharp Cut-off Pent 3 0 5GS7 Medium µ Triode Sharp Cut-off Pent 3 0 5KE8 Medium µ Triode Sharp Cut-off Pent 3 0 5LJ8 Medium µTriode Sharp Cut-off Pent 3 0 5U4G Full Wave Vacuum Rectifier 0 13 5V4G GZ32/CV593 Full Wave Vacuum Rectifier 0 18 5Y3GT Full Wave Vacuum Rectifier 2 84 5Z4 Full Wave Vacuum Rectifier 0 6 6005 6AQ5 Beam Power Tetrode 0 2 6064 CV4014/EF91 Sharp Cut-off RF Pentode 0 3 6100 CV4058 Medium µ Triode 0 1 6136 Sharp Cut-off Pentode 0 9 6201 High µ Twin Triode PQ 0 1 6203 Twin Diode 1 6688 E180F/CV3998 Sharp Cut-off RF Pentode 1 0 6883 6146B Beam Power 0 1 6893 Beam Power Amplifier 0 1 6973 Beam Power Tetrode 1 2 6A6 6N7 Twin Power Output Triode 0 3 6A7 6A8 Pentagrid 0 40 6A8 Pentagrid 0 43 6AB4 EC92 Triode 1 2 6AB7 TV Medium Cut-off RF Pentode 1 2 6AB8 Medium
Recommended publications
  • Vacuum Tube Theory, a Basics Tutorial – Page 1

    Vacuum Tube Theory, a Basics Tutorial – Page 1

    Vacuum Tube Theory, a Basics Tutorial – Page 1 Vacuum Tubes or Thermionic Valves come in many forms including the Diode, Triode, Tetrode, Pentode, Heptode and many more. These tubes have been manufactured by the millions in years gone by and even today the basic technology finds applications in today's electronics scene. It was the vacuum tube that first opened the way to what we know as electronics today, enabling first rectifiers and then active devices to be made and used. Although Vacuum Tube technology may appear to be dated in the highly semiconductor orientated electronics industry, many Vacuum Tubes are still used today in applications ranging from vintage wireless sets to high power radio transmitters. Until recently the most widely used thermionic device was the Cathode Ray Tube that was still manufactured by the million for use in television sets, computer monitors, oscilloscopes and a variety of other electronic equipment. Concept of thermionic emission Thermionic basics The simplest form of vacuum tube is the Diode. It is ideal to use this as the first building block for explanations of the technology. It consists of two electrodes - a Cathode and an Anode held within an evacuated glass bulb, connections being made to them through the glass envelope. If a Cathode is heated, it is found that electrons from the Cathode become increasingly active and as the temperature increases they can actually leave the Cathode and enter the surrounding space. When an electron leaves the Cathode it leaves behind a positive charge, equal but opposite to that of the electron. In fact there are many millions of electrons leaving the Cathode.
  • Test Data for Electron Tube Test Sets Tv-7/U, Tv-7A/U, Tv-7B/U, and Tv-7D/U

    Test Data for Electron Tube Test Sets Tv-7/U, Tv-7A/U, Tv-7B/U, and Tv-7D/U

    NAVWEPS 16-45-637 TB 11-6625-274-12/1 DEPARTMENT OF THE ARMY TECHNICAL BULLETIN TEST DATA FOR ELECTRON TUBE TEST SETS TV-7/U, TV-7A/U, TV-7B/U, AND TV-7D/U This copy is a reprint which includes current pages from Changes 3. HEADQUARTERS, DEPARTMENT OF THE ARMY JANUARY 1962 *TB 11-6625-274-12/1 TWENIGAL BUMIN ME ADQUARTERS, DEPARTMENT OF THE ARMY No. 11-6826-274-12/1 WASHtNGTUN 26, D. C.,17Januarui96S TEST DATA FOR ELECTRON TUBE TEST SETS TV-7/U, TV-7A/U, TV-7B/U, AND TV-7 D/U 1. Operation. The following instructions are keyed to the table of teat data given In paragraph & For comule@ operating inatruetions see TM 11-6625-274-12, Operator’s nnd Organizational Maintena.nee Manual, Test Sets, Electron Tube TV-7/U, TV-7 A/IJ, TV-7B/U, and TV-7D/U. & Turn the POWER switch to the ON po.cition. b. Press push button l-LINE ADJ and hold it down. S1OWIY rotata the LINE AD- JUST control knob untii the pointer of the meter rcata over the LINE TEST mark. This adjustment is not required for all tubes (refer to Notntiom column). c. Locate the type number of the tube to be taatcd (par. 2) under the column heading Tube twe. d. Refer ta the Notatiene column for $pecinl information pertaining to apcciflc typcc of tubcc. 8. Set the lrILAM ENT VOLTAGE owitch et the voltage shown under the heading Fil. /. Set the selector awitehes as indicated under tbe column headed Setectoru in the fol-” Jowfng order: FILAMENT (left), FILAMENT (right).
  • Commissioning of the Mice Rf System* A

    Commissioning of the Mice Rf System* A

    5th International Particle Accelerator Conference IPAC2014, Dresden, Germany JACoW Publishing ISBN: 978-3-95450-132-8 doi:10.18429/JACoW-IPAC2014-WEPME020 COMMISSIONING OF THE MICE RF SYSTEM* A. Moss, A. Wheelhouse, T. Stanley, C. White, STFC, Daresbury Laboratory, Warrington, UK K. Ronald, C.G. Whyte, A.J. Dick, D.C. Speirs, SUPA, Dept.of Physics, University of Strathclyde, Glasgow, UK S. Alsari, Imperial College of Science and Technology, London, UK on behalf of the MICE Collaboration Abstract feature adjustable sections to change the response of the cavity to both input line and resistive load. On the output The Muon Ionisation Cooling Experiment (MICE) is of the amplifier, the cavity length and hence its resonant being constructed at Rutherford Appleton Laboratory in frequency can be adjusted, whilst a stub tuner is located in the UK. The muon beam will be cooled using multiple the output coax section to alter the coupling factor into hydrogen absorbers then reaccelerated using an RF cavity the output coax so that the amplifier may be used to drive system operating at 201MHz. This paper describes recent a range of different load conditions. For use in the MICE progress in commissioning the amplifier systems at their system the 4616 operates in long pulse mode using grid design operation conditions, installation and operation as pulsed operation and can provide up to 250kW RF output part of the MICE project. power. INTRODUCTION 4616 Power Supply The muon ionisation cooling experiment is a The power supply for the tetrode amplifier consists of a demonstration of practical cooling for future muon TDK-Lambda 500A capacitor charger power supply acceleration schemes.
  • The National Valve Museum

    The National Valve Museum

    The National Valve Museum Updates August 2016 Added one article:- Focusing Cathode-Rays Added one timeline feature:- October 1966 – Captain H J Round Obituary. Added 108 vintage adverts:- adv-1007 Hivac XFW40 adv-1008 English Electric CRT T901A adv-1009 Osram Audio Output Valves adv-1010 Brimar 12AT7 adv-1011 Mullard 61SV adv-1012 Ediswan Photo-multiplier advert adv-1013 Mazda Brand Advert adv-1014 GEC Brand Advert adv-1015 Hivac Difference Diode Advert adv-1016 Osram Band III TV Valves Advert adv-1017 Ediswan Aluminized TV Tubes Advert adv-1018 Mullard PL81 Advert adv-1019 Ediswan 12E1 Advert adv-1020 Mullard QV06-20 Advert adv-1021 Ediswan Photo-multiplier advert adv-1022 Hivac Flat Sub-miniature Range Advert adv-1023 EMI RK6112 Klystron Advert adv-1024 GEC Rectangular TV Tubes Advert adv-1025 Ediswan Aluminised Television CRT's Advert adv-1026 Mullard EF80 Advert adv-1027 Mullard Valves for VHF Advert adv-1028 Brimar Brand Advert adv-1029 Hivac XR4 Advert adv-1030 Ediswan Glass-Metal Seals Advert adv-1031 Hivac XE2 Advert. adv-1032 Commercial Mullard 5-10 Amplifier Advert adv-1033 English Electric Image Orthicon Advert adv-1034 Thomson-CSF CRTs Advert adv-1035 Brimar M14-100 CRT Advert adv-1036 English Electric 0A2WA Advert adv-1037 English Electric RF Heating Valves Advert adv-1038 GEC New KT88 Advert adv-1039 Brimar D18-130 Advert adv-1040 English Electric CRTs Advert adv-1041 Ferranti Handbooks Advert adv-1042 Mullard Directly-heated Miniatures Advert adv-1043 STC 5A/170K Advert adv-1044 Ferranti Ceramic Valves Advert adv-1045 Westinghouse
  • 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

    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.................................................................
  • ARGUS, the VCR97 CRT, the PENTODE THAT WON the WAR and “MY ARGUS”

    ARGUS, the VCR97 CRT, the PENTODE THAT WON the WAR and “MY ARGUS”

    PRACTICAL TELEVISION MAGAZINE'S ARGUS, THE VCR97 CRT, THE PENTODE THAT WON THE WAR and “MY ARGUS”. Dr. Hugo Holden, Oct. 2016. (Updated Nov.2016- Argus Filters & case page 37. Change to sync Sep value, pg 14) INTRODUCTION: Firstly some photos of “My Argus”. This name, throughout this article, refers to my unique version of the Argus build your own Television project from Practical Television (P.T.) magazine 1952. My Argus has a different mechanical construction philosophy and altered electrical design which is described in this article: SCREEN IMAGES: The Argus employed the VCR97 CRT (Radar Cathode Ray Tube). Just how good is a VCR97 CRT at producing a 405 line television picture? The answer to this question depends on the actual VCR97 you have and the performance of the set’s vision amplifier and video output stage. Some VCR97’s, due to an anomaly in their electron gun and deflection plate construction, cannot deflect a full screen image. Other VCR97’s now have low emission and brightness and while being ok for a single line scope or radar display, are poor for displaying a TV scanning raster. After sorting through a good number of them I selected the better performing tube. A number of screen images are shown below. The screen image photographs below show that the horizontal and vertical scanning linearity is not perfect. It is a little stretched at the start of the horizontal scan and compressed a little at the end vertical scan. This turned out to have a different reason in the line and frame oscillator/deflection circuits and was subsequently remedied with simple modifications described later in this article.
  • TECHNIQUE for TUBE DATA

    TECHNIQUE for TUBE DATA

    Web: http://www.pearl-hifi.com 86008, 2106 33 Ave. SW, Calgary, AB; CAN T2T 1Z6 E-mail: [email protected] Ph: +.1.403.244.4434 Fx: +.1.403.245.4456 Inc. Perkins Electro-Acoustic Research Lab, Inc. ❦ Engineering and Intuition Serving the Soul of Music Please note that the links in the PEARL logotype above are “live” and can be used to direct your web browser to our site or to open an e-mail message window addressed to ourselves. To view our item listings on eBay, click here. To see the feedback we have left for our customers, click here. This document has been prepared as a public service . Any and all trademarks and logotypes used herein are the property of their owners. It is our intent to provide this document in accordance with the stipulations with respect to “fair use” as delineated in Copyrights - Chapter 1: Subject Matter and Scope of Copyright; Sec. 107. Limitations on exclusive rights: Fair Use. Public access to copy of this document is provided on the website of Cornell Law School at http://www4.law.cornell.edu/uscode/17/107.html and is here reproduced below: Sec. 107. - Limitations on exclusive rights: Fair Use Notwithstanding the provisions of sections 106 and 106A, the fair use of a copyrighted work, includ- ing such use by reproduction in copies or phono records or by any other means specified by that section, for purposes such as criticism, comment, news reporting, teaching (including multiple copies for class- room use), scholarship, or research, is not an infringement of copyright.
  • Optomized Electron Stream Web Pages

    Optomized Electron Stream Web Pages

    Web: http://www.pearl-hifi.com 86008, 2106 33 Ave. SW, Calgary, AB; CAN T2T 1Z6 E-mail: [email protected] Ph: +.1.403.244.4434 Fx: +.1.403.244.7134 Precision Electro-Acoustic Research Laboratory ❦ Hand-Builders of Fine Music-Reproduction Equipment Please note that the links in the PEARL logotype above are “live” and can be used to direct your web browser to our site or to open an e-mail message window addressed to ourselves. To view our item listings on eBay, click here. To see the feedback we have left for our customers, click here. This document has been prepared as a public service . Any and all trademarks and logotypes used herein are the property of their owners. It is our intent to provide this document in accordance with the stipulations with respect to “fair use” as delineated in Copyrights - Chapter 1: Subject Matter and Scope of Copyright; Sec. 107. Limitations on exclusive rights: Fair Use. Public access to copy of this document is provided on the website of Cornell Law School ( http://www4.law.cornell.edu/uscode/17/107.html ) and is here reproduced below:: Sec. 107. - Limitations on exclusive rights: Fair Use Notwithstanding the provisions of sections 106 and 106A, the fair use of a copyrighted work, includ- ing such use by reproduction in copies or phonorecords or by any other means specified by that section, for purposes such as criticism, comment, news reporting, teaching (including multiple copies for class- room use), scholarship, or research, is not an infringement of copyright. In determining whether the use made of a work in any particular case is a fair use the factors to be considered shall include: 1 - the purpose and character of the use, including whether such use is of a commercial nature or is for nonprofit educational purposes; 2 - the nature of the copyrighted work; 3 - the amount and substantiality of the portion used in relation to the copy righted work as a whole; and 4 - the effect of the use upon the potential market for or value of the copy- righted work.
  • SCREEN GRIDS in AUDIO and RF MODULATOR POWER TUBES

    SCREEN GRIDS in AUDIO and RF MODULATOR POWER TUBES

    SCREEN GRIDS in AUDIO and RF MODULATOR POWER TUBES Readers - please note this page is presented for your education, information and guidance only. This paper refers only to the characteristics and performance of push-pull tube audio amplifiers without trans-stage or loop negative feedback. For reasons detailed elsewhere in my website I have no interest whatsoever in either single-ended amplifiers or trans- stage negative feedback. For full ratings and applications of specific tube types in which you are interested please refer to the manufacturer's catalogue. Please note that no warranty is expressed or implied - see footnote notice. The whole or part thereof of this paper and/or the designs and design concepts expressed therein may be reproduced for personal use - but not for commercial gain or reward without the express written permission of the author. © Copyright: Dennis R. Grimwoood - All rights reserved. Copyright in all quoted works remains with their original owner, author and publisher, as applicable. 1. INTRODUCTION Traditionally, the design of audio amplifiers has followed fairly clear and well established design principles. Some of those principles relate to the way in which Screen Grids are used to control current flow in audio amplifier tubes, particularly power tubes. Examination of professionally designed commercial circuits spanning more than 60 years' audio technology shows us there has been very little innovation in the way in which Screen Grids are used - ie little variation in, or departure from, conventional, traditional Screen-Grid application design concepts. It is understandable why this is so, because innovative engineering was not encouraged in the consumption driven expanding global marketplaces of the 1940's through 1970's.
  • The LW6-180 Amplifier

    The LW6-180 Amplifier

    The LW6-180 Amplifier This author shares with us his design of a high-quality audio amp that produces 180W mono, bridge or balanced input, and 90 + 90W stereo. BY SILVIO MANGINI designed this Class AB2 am- ’90’s tube revival, good engineer- plifier (Photo 1) around the ing practice may not be the Iunion of the 18TU output main issue, as directly heated transformer and the 6LW6 triode wizards well know. So a high-perveance beam power lot of cheap NOS horizontal tube. The main specifications output tubes that look like are reported in Table 1 against new audio output tubes, de- IEC 268 standards. signed for a no-compromise amplifier, should have low THE 6LW6 impedance (i.e., high per- The 6LW6 (and its 26V and veance) and a low amplifica- 36V variants) are among the tion factor, after Champeix2: most powerful receiving tubes = ²⁄₃ −²⁄₃ −¹⁄₃ µ+ (Photo 2). Octal predecessor of rp p Ia ( 1) the more famous 6LF6, the 6LW6 = is a 40W beam tetrode in T14-7 where rp plate resistance, size, originally intended as a horizontal- PHOTO 1: Completed amplifier. deflection amplifier that clearly surpasses p = perveance = cost × (S/d2) = f(electrode the 6550A and KT88. knowledge there is no solid-state four- geometry), Horizontal-deflection output tubes terminal equivalent). The KT88 is a = with their astounding performance were tougher 6L6, something like two in paral- Ia plate current, not extensively used in audio amplifiers, lel. But the 6LW6, 6LF6, or even the 30W because high perveance must be paid 6JE6 (the MC-3500 output tube) behave S = electrode extension = f(effective cath- for from a lower than plate-screen-volt- like tougher KT88s.
  • 4X150A/7034 Radial Beam Power Tetrode

    4X150A/7034 Radial Beam Power Tetrode

    4X150A/7034 Radial Beam Power Tetrode The Svetlana 4X150A/7034 is a compact radial beam tetrode. T The 4X150A is intended for Class AB SSB linear RF amplifier service. It is intended for stationary and mobile equipment designs with power amplification at frequencies up to 500 MHz. The 4X150A has an indirectly- heated oxide cathode. The Svetlana 4X150A is manufactured with rugged, all metal/ceramic construc- tion and will withstand severe military environments. Further, the anode is capable of dissipating 250 watts with forced air cooling, and is rated accord- ingly. These improved characteristics make the Svetlana 4X150A fully equiva- lent to the 4CX250B. The Svetlana 4X150A/7034 is manufac- tured in the Svetlana factory in St. Petersburg, Russia, and is designed to be a direct replacement for the 4X150A/ 7034 manufactured in the United States, England and elsewhere. Svetlana ELECTRON DEVICES Svetlana 4X150A/7034 General Characteristics Heater: Voltage (AC or DC) Min. Nom. Max. 5.7 6.0 6.3 Cathode: Oxide-coated, unipotential Cathode-to-heater potential ± 150 V Direct interelectrode capacitances, max. Grounded cathode: Input 15.7 pF Output 4.5 pF Feedback 0.04 pF Mechanical Operating Position Any Base Special 9-pin Recommended socket Eimac or Johnson SK-600 series Maximum dimensions Height 64 mm (2.52 in.) Diameter 41.6 mm (1.64 in.) Maximum operating temperatures Ceramic-to-metal seals 250° C Anode core 250° C Cooling Forced air Maximum net weight 150 g (4.8 oz.) Approximate shipping weight 0.7 Kg.(1.5 lb.) Radio Frequency Linear Amplifier,
  • Master Product Fisting

    Master Product Fisting

    Richardson "' Electronics, Ltd. Master Product fisting Part #and Description Guide • Electron Tubes • Semiconductors r Electron Tubes Part Description Part # Description Part # Description LCMG-B X-Ray Tube 2AS15A Receiving Rectifier QB3.5/750GA Power Tetrode QEL1/150 Power Tetrode 2AV2 Receiving Tube 6163.5/750/6156 Power Tetrode CCS-1/Y799 CC Power Tetrode 2822 Planar Diode QBL3.5/2000 Power Triode PE1/100/6083 Power Pentode 2B35/EA50 UHF Diode W3/2GC TWi C1A Thyratron 2694 Twin Tetrode W3/2GR TWi GV1A-1650 Corona Voltage Reg 2BU2/2AS2A/2AH2 Receiving Tube 61QV03/20A UHF Twin Tetrode CE1A/B Phototube 2C36 UHF Triode QQE03/20/6252 UHF Twin Tetrode 1A3/DA90 Mini HF Diode 2C39A Planar Triode QQE03/12/6360A Twin Tetrode 1AD2A/1BY2 Receiving Tube 2C39BA Planar Triode OE3/85A1 Voltage Regulator C1 B/3C31 /5664 Thyratron 2C39WA Planar Triode OG3/85A2 MIN Volt Regulator 1B3GT/1 G3GT Receiving Tube 2C40A Planar Triode QB3/200 Power Tetrode 1B35A ATR Tube 2C43 Planar Triode QB3/300 Power Tetrode 1658A TR Tube 2C51/396A MIN Twin Triode QB3/300GA Power Tetrode 1859/R1130B Glow Modulator 2C53 High Voltage Triode T83/750 Power Triode 1B63B TR Tube 2CW4 Receiving Tube OA3NR75 Voltage Regulator 1885 Geiger-Mueller Tube 2D21 Thyratron OB3NR90 Voltage Regulator 1BQ2IDY802 Receiving Rectifier 2D21W/5727 MIN Thyratron OC3NR105 Voltage Regulator 1C21 Cold Cathode 2D54 Receiving Tube OD3NR150 Voltage Regulator 1D21 /SN4 Cold Cathode Dischg 2E22 Pentode OB3A Receiving Tube 1G3GT/ 1B3GT Receiving Tube 2E24 Beam Amplifier OC3A Voltage Regulator 1G35P Hydrogen Thyratron 2E26 Beam Amplifier OD3A Voltage Regulator 1HSGT Recv.