Tetrode tube data booklet

So the 4cx300y is listed before the 4cx350a, since the 4cx300y has a 400w dissipation sometimes two or more tubes share the same data sheet e. There are several varieties of tetrode with screengrid tube, and the beam tetrode being the most common. The original care and feeding of power grid tubes was published in 1967. Radial beam power tetrode 4cx20,000c communications. Free vacuum tube data sheets free vacuum tube substitution. Nonlinear simulation of a tetrode vacuum tube technical. Vacuum tubes can be tested outside of their circuitry using a vacuum tube tester. This page explains how to calculate resistors for a griddriven class ab1 amplifier. In electronics, a vacuum tube, an electron tube, or valve british usage or, colloquially, a tube north america, is a device that controls electric current flow in a high vacuum between electrodes to which an electric potential difference has been applied.

C1 is a low rf impedance capacitor, roughly 2 ohms reactance or less on the lowest frequency. There are several varieties of tetrodes, the most common being the screengrid tube and the beam tetrode. At the bottom of this page youll find some links to other tube datasheet sites. Although having identical general specifications the 6550 beam power tube its usa cousin, has substantially lower electrical ratings for pentode, triode and ultralinear connections so be warned although the 6550 and kt88 are often specified in tube handbooks and amplifier schematics as equivalent substitutes for each other it may be wise to check the ratings first. Mitchell gives the most comprehensive tube data available, unfortunately only for a small selection of tube types.

Buyers will want closeups, date codes, test data and info about your tube tester like when it was calibrated. Hhscott vacuum tubes 6cw4 6ds4 nuvistor applications. Sometimes there are major differences between the data on the different manufactuers data sheets you will need to resolve what is right. Since then, care and feeding has been through four.

Sometimes there is more than one data sheet, usually from different manufactuers. They are of particular interest to hams building tetrode amplifiers, which have more complicated biasing circuits than grounded grid triodes. Ordering code q53x2078 coaxial metalceramic tetrode, grid in pyrolytic graphite technolgy, vaporcondensationcooled. In screengrid tubes and beam tetrodes, the first grid is. Lessons in electric circuits volume i dc chapter 2. Push the tetrode into the tube until the individual electrode wires are close to the connector board at the top of the drive array. The tubes are marked see photos in russian cyrillic 61eb in english 6p1peb.

Vacuum tube 5763, tetrode, beam power antique electronic. The pentode equation differs from the triode equation in that the screen grid replaces the plate as a controlling element, and an arctangent term from scott. Each years set includes all six issues of tube collector as well as the special publication. Displays real world application data for over 1,700 vacuum tubes. Use of the data booklet may be appropriate for some questions. Welcome to the tube data sheet locator, a popular web resource for finding data on vacuum tubes. Raytheon rk 65 rk 65 5 d 23 transmitting tube data booklet. However, you wont usually find a specification for mu in tetrode pentode data sheets, as its impractical to design circuits with this amount of gain. Description for high linearity, high gain and greater isolation, the tetrode is the tube of choice. As if the features above are not enough, tdsl pe includes internet urls for over 9,500 vacuum tubes where you can click to see a data sheet on the web or visit the site which hosts the data sheets. The th 594 is a very highpower coaxial tetrode, purposedesigned for the amplifiers used in digital fm radio transmitters operating at frequencies up to 110 mhz. Postwar, 1625 tubes flooded the surplus market, and were available for pennies apiece. You can use acrobat for viewing and printing pdf files.

Basics how does a tube work vacuum tube electrodes diode valve tube triode tetrode beam tetrode pentode equivalents pin connections numbering systems valve sockets bases with the very large number of vacuum tubes or thermionic valves that were produced and as a result of the multiple vacuum tube numbering systems that were in use, there are. Vintage general electric 7027a audio vacuum tubes 15831114501. If you have never used this facility before, click the help link on the left for detailed instructions. Tetrode th 5186 for therapy switching and regulation tetrodes for therapy xray generation high voltages, of the order of a hundred kilovolts, high currents and extensive work ratios are needed for medical xray sources. A beam tetrode, sometimes called a beam power tube, is a type of tetrode vacuum tube or valve with auxiliary beamfocusing plates designed to augment powerhandling capability and help reduce unwanted emission effects. The magnetron is the type of tube used in all microwave ovens. The 12e1 is a power output valve for use as a series pass valve in stabilised power supplies. If a certain type of tube is only worth a dollar or two, it will not pay to list it. These tubes were used as rf power amplifiers in some of the scr274 and anarc5 command set transmitters of ww2.

This 1932 rca belowmanual provides all the data sheet information, of the first radio receiving tubes ever made, from about 1920 to 1932. The booklet contains information on special tubes and those which are tested infrequent data is finted regularly. The nuvistor is a thimblesized vacuum tube enclosed in miniature metal rather than glass that promised highreliability, lownoise, and lowpower operation. Data from or other sources as supplied by john atwood. The vacuum tube is then known as a triode, tetrode, pentode, etc. A triode has one grid, a tetrode has two grids, and a pentode has three grids. The tetrode as the name suggests, the tetrode tube contained four elements. The technical data sheet for a given tube type lists the approximate drive power required for various operating modes. To search for tube data, simple click the search link on the left.

Most small signal vacuum tube devices have been superseded by semiconductors, but some vacuum tube electronic devices are still in common use. The el34 is a pentode, while the 6l6, which delivers a similar range of power output, is a beam tetrode which rca referred to as a beam power tube. Eimac power grid tubes quick reference 116 pages 1975. Highpower tetrode, peak output power up to 60 kw for fm digital radio broadcast. Hisashi ohtsuka enjoying his 2009 schrader award plaque with dr. A tetrode is a vacuum tube called valve in british english having four active electrodes. Tubes are listed in order of increasing dissipation. Although power pentodes and beam tetrodes have some differences in their principles of operation the beam forming plates of the beam tetrode or fifth electrode 3rd grid of the pentode, both serving to hinder the return of unabsorbed electrons. Because of the platetoscreen capacitance of a tetrode or pentode, the rf plate voltage developed in the output circuit causes an rf current to flow out of the screen lead to the chassis. The tube, 00 00 svetlana 4cx1600b 00 h ig h perform ance tetrode 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 he svetlanatm 4cx1600b is a highperformance ceramicmetal tetrode with a, internal configuration of the 4cx1600b allow its use as a high gain griddriven rf amplifier or a grounded. Another spot to look, which is especially useful if youre looking for replacement types and tubes with similar bases or characteristics, is the nj7p tube database. Tube data in addition to the data i have scanned and posted, if youre looking for data on a particular tube you should visit tsdl on duncanamps website, or franks tube data. There are data sheets for the 4cx250b from eimac, stc and penta.

The gu78b tetrode is used for power amplification in distributed amplifiers and singlesideband signal amplifiers at frequencies up to 250 mhz, in rf industrial engineering equipment. In the case of a pushpull stage, this current may flow from the screen terminal of one tube to the screen terminal of the other tube. Like the 6l6, the 6550 isa beam power tube design or power tetrode that can painlessly deliver 35watts at its output. Ian white, gm3sek, sells kits for tube control and protection. The classic envelope is 52 mm in diameter and, excluding the io base pins, is mm tall. In screengrid tubes and beam tetrodes, the first grid is the control grid and the second grid is the screen grid. A booklet showing a comparison of the best buys in tubes for power output. In 193334 rcas developers b j thompson and g m rose published articles describing experimental triode and tetrode designs. The design is based on a surplus russian gs23b svetlana 4cx1600u tetrode. For the pulse mode, it is suitable to operate up to 250mhz, and delivers pulse peak power 400kw with duration of 1. Thomson tubes electroniques for its use, nor for any infringements of patents or other rights of third parties which may.

Shortwave transmitters, including those broadcasting in digital radio mondiale. Output pentode, beam tetrode vacuum tubes, capacitors, nixie tubes, sockets. The typical rating for tetrode th781 is cw mode, 200kw with frequency at 200mhz. Good, detailed overview of the 12v space charge tube phenomenon, aimed at tube collectors but well worth hunting down by homebrewers. Tetrode for fm digital radio broadcast thales group.

The eb designation at the end of the 6p1p tube code designates a longlife e and highreliability b version of the 6p1p tube. This page is dedicated to the williamson amplifier, which is regarded by audiophiles as one of the great moments in audio history its intent is to present a tribute to the contribution of mr. Philips technical library series on electronic tubes html page 20200331 philips elcoma series databooks. This 1932 rca below manual provides all the data sheet information, of the first radio receiving tubes ever made, from about 1920 to 1932.

Circuit wiring so far, weve been analyzing singlebattery, singleresistor circuits with no regard for the connecting wires between the components, so long as a. It has many circuit diagrams, using these tubes and all the information, about these original vacuum tubes. As the frequency of operation increases and the physical size of the tube structure becomes large with respect to this frequency, the drive power requirements also will increase. This was my first qro project and it was a challenge. Various pdf files containing eimac tubes information. The problem of secondary emission from the anode us. Includes a simple circuit from sylvania for a cb receiving converter, using the 12dz6 tetrode and the 12ec8 triodepentode. Transmitter tetrode th 558 ordering code q53x2078 view x. These tubes are usually used for power amplification, especially at audiofrequency history. The technology of this tube has already been well proven and benefit from the companys long experience in tetrodes and diacrodes. Some electron tubes and semiconductor diodes most notably, the tetrode tube and the esaki, or tunnel diode, respectively exhibit negative resistance over a certain range of voltages. Big catalog of 1980 data and many comparable products. This is a 5 grid tube with grids 2 and 4 tied together and brought.

In fact, tetrodes are the primary means for achieving power levels above 1 mw. T the svetlana 4x150a7034 is a compact radial beam tetrode. An incomplete look at russiansoviet tube history a history of tube development from the days of the czar to modern times. You will automatically receive new charts as issued in. The is a low voltage, high current tetrode specifically designed for class ab1 rf linear amplifier or audio amplifier applications where its high gain and low distortion characteristics may be used to advantage. The tube s excellent efficiency results from its favorable current transfer characteristic and high permissible screen grid dissipation. Th781 hypervaportron tetrode is recently and widely used in the rf power system in linear accelerator. All of which it needed to have any hope of competing in the brave new solidstate world emerging when rca introduced it in the 1959. Similar in construction to the grid, the screen was a wire mesh or coil positioned between the grid and plate, connected to a source of. Miniature spacechargegrid tetrode intended for use as a driver for the transistor poweroutput stage of. Russian subminiature tubes a discussion of the construction details of subminiature russian tubes.

Russian subminiature tubes are constructed entirely differently from other subminiature tubes. Thaless long experience in very high voltage switching and regulation, enables us to offer a family of highly adaptable. These became the basis of the production valves that saw the light of day from 1935 onwards, when rca took the bold step of introducing the socalled acorn valve or tube as they would have called it, which resulted. The ultimate in musical tone and smooth overdrive, the str delivers the sound that established tungsol as the benchmark of quality. Sylvania 1943 and 1949 tube manuals sylvania technical manual. The tetrode is a fourelement tube with two grids 4. A vacuum tube, an electron tube, or valve british usage or, colloquially, a tube north. Most of the datasheets are in pdf format and some are links to other html pages. Nos tube specification sheet nos tube specification sheet. A c2h4 b h2s c ncl 3 d sf6 2 the mass spectrum of a sample of lithium shows that it contains two isotopes, 6li and 7li. Power vacuum tubes hand book vacuum tube principles. These are all class ab1 amplifiers, with grids never going positive. This is the description page for the eimac 4 tetrode power tube download package, which contains the entire tube data sheet pages in pdf format.

Many manufacturers offer tetrode design transmitters to meet increasing power needs. Holding the tetrode with soft tipped tweezers and using a stereoscope, push the tip of the tetrode into the polyimide carrier tube of one of the microdrives. The results of a search of two data bases used for the identification of different chassis and their tubes. The internal structure of conventional subminiature tubes shown in figure 1 is easily recognized as a miniaturized version of the classic receiving tube structure, with a filamentary or a unipotential cathode, one or more thin wire ladders as grids, perhaps beam forming. Click here for an english translation of the operating manual that came with my tube. A tetrode is a vacuum tube having four active electrodes. The tungsol legacy continues with the introduction of the new 6l6gc str. The 6p1peb vacuum tube is a vintage sovietmade miniature 9pin beam tetrode that was manufactured by svetlana. Tube test data data for testing more than 1200 types of tubes is contained in the roll chart. The only way to know the particular features of a special quality part is by reading the data sheet. The sk1a has a builtin annular screen, 4cx800a high perform ance tetrode he svetlana 4cx800a is a highperformance ceramic metal tetrode, of the 4cx800a allow its use as a high gain griddriven rf amplifier or in grounded grid. Although the rca 6l6 of 1936 the result of a license agreement between rca and mov was the first true beam power tube on the market, the later kt66 became almost. The heavy demands placed on valves used as control elements in regulator circuits makes it vital that the ratings are not exceeded.

It is especially suited to amplifiers based on the new inband onchannel iboc technology. Ultralinear distributed load highfidelity vacuum tube audio amplifiers ultralinear operation, also known as distributed load operation, is a term when applied to singleended or pushpull vacuum tube audio amplifiers, that describes the particular output stage configuration whereby the screen grids grid 2 of tetrodes, pentodes or beam power tubes are fed from a. Coors ceramicsmaterials for tough jobs, coors data sheet. Substitutes are given as a guide only please refer to original manufacturers data sheets to ensure that a substitute is safe and appropriate for your application. The th 680 is a ceramicmetal diacrode of coaxial structure particularly suitable for use as an rf amplifier in particle accelerators. Williamson to tube audio, and to provide information to users and diy constructors of the features, advantages and disadvantages of this amplifier. Vacuum tube 12k5, tetrode antique electronic supply. Tube n 30 or rohre n30 id19568, screengrid tetrode, british7pin, old m7a and poweroutput shown. The rs 2078 sk is particularly suitable for up to 600 kw mw and 500 kw sw broadcast trans. Vintage seiko data 2000 watch 1980s japan made see pics. With almost datasheets and the visitor counter indicates over 4000.

Smullin gives a comprehensive treatment of all aspects of noise in vacuum tubes. Tube zone electron tube data sheets, vacuum tubes, tetrode, diode. You may order through the clubs ashland, or address. Bill beech, nj7p has a tube database on his web site comprehensive transmitting tube data 1988 handbook base diagrams and data. Some, but not all, were versions of existing american beam tetrode tubes or european power pentodes, such as the kt66 6l6, kt77 el34 and 6ca7, kt88 6550, and kt63 6v6.