Mechanical application mounting the 3cx3000a7 must be mounted with its axis vertical. Eimac has always had issues with grid current due to sloppy manufacturing tolerances and gridtocathode alignment. This tube features a filament designed to operate at 5 volts, a value that is common to other power grid tubes and allows a single 3cx1500d7 to replace two 3500z in many applications. Dx engineering 8877 3cx1500 ceramic power triodes dxe. However, there is a smaller booklet of formulae available for use in as and a. Full details for the 3cx100a5 can be found on the attached data sheet.
Ge essential characteristics, the whole 228 page book in an indexed pdf file big, 11mb. Offered tubes soviet marks as gu74b are made in the ussr at 198092 on this svetlana factory, are full analogue and have the best parameters rather modern svetlana 4cx800a. These features reduce equipment cost and complexity. Technical data highmu aircooled power triode 3cx1500d7 the eimac 3cx1500d7 is a compact power triode with an anode dissipation rating of 1500 watts. Lawrence berkeley national laboratory introduction. The beauty of this is that a typical 100w pep plastic radio ham transmitter would drive it. Svetlana power transmitting tetrode the svetlana 4cx800a is manufactured in the svetlana electron devices sed factory in st. The key to selecting proper tubing for use with metal. Pro106197 and psr500600 have the vscanner programmed data in another booklet. With almost datasheets and the visitor counter indicates over 4000. Use this unit only in the manner intended by the manufacturer. Dx engineering 8877 ceramic power triodes also known as 3cx1500a7 designed for use as a cathodedriven class ab2 or class b amplifier, in audio or rf applications, including vhf high band to 250 mhz. International baccalaureate rganization 20 19 m194physihpmen tz 1xx 2219 6507. Ib merchandise and publications can be purchased through the ib store at.
The 3cx3000a7 highmu forced air cooled power triode provides relatively high power output as an amplifier, oscillator, or modulator at low plate voltages. They may also serve as a cathodedriven class c rf amplifier. If everything is ok, the measured voltage of vcc terminals of r2 or r5 are about 65v dc. Customer care centre 08705 357357 selected spares and accessories. The tube has a low inductance cylindrical filament tank circuit for vhf operation. In a singleended circuit the loaded q should be at least 3. Cathode and heater connections are made by bolting directly to the amplifier circuitry. Normal 3 kw size rf amplifier plate choke is used for dc tank safety. Ceramic insulation would suggest a higher power than the 2c39as 20 watts of up to 2400 mhz and the data sheet confirms this. Triodes 25t325a3 data sheet 194425t, 25t, 325a3 25t data sheet 195125t 35t data sheet 193535t 35t data sheet 193635t 35t data sheet 194535t 35tg data sheet 194535tg 35tg data sheet 1955tg 50t data sheet 193450t 75t data sheet75t 75th data sheet 194475th 75th data sheet 195275th 75tl data sheet 194675tl 75tl data sheet 195275tl. Welcome to the tube data sheet locator, a popular web resource for finding data on vacuum tubes. The 3cx5000a7 highmu triode is designed for use as a cathode driven class ab power amplifier. We no longer carry, nor do we recommend eimac tubes. Operation with zero grid bias in many applications offers circuit simplicity by eliminating the bias supply.
The enameled wire is not included i stripped some from transformers. Order direct on line at uk or by telephoning the customer care centre number above. Datasheet for qs301 nixie tubes from an unknown chinese tube data book. According to the eimac data sheet, at a plate voltage of 4000v, 420w is needed to drive the tube to 6030 watts output.
Amplificatori lineari i 5 u x j qro home made linear amplifier hf amplifier. High power transmitting tubes, 3500c, 8877, 3cx1200a7. University of cambridge international examinations general. While the 8877 is a good tube with excellent im characteristics and very high gain, it is probably the more problem plagued tube eimac manufactures. The tube does not require a socket as it is designed to bolt directly to the chassis by means of the grid flange. Henry used greenstone exclusively in the last 7 seven years of their amplifier production and for replacement in all amplifiers.
It is the same size as the 2c39a with the only visual difference being ceramic replacing the glass. If youve owned a trunktracker before you pretty much know what to set. It is a lowvoltage, highcurrent tube specifically designed for exceptionally low intermodulation distortion and low grid interception. Students may also use this booklet in all as and a. This technique increases linearity and output power. This booklet of formulae and statistical tables is required for all as and a. The data was mostly fragmented, variable and sketchy, as it was for the tubes being used as voltage regulators in most cases. Swagelok tube fittings is that the tubing must be softer than the fitting. Vacuum tubes, sockets, capacitors, nixie and electron tube accessories. It is recommended for use as a grid driven pushpull audio amplifier or modulator and as a cathode driven. Imd will vary slightly from tube to tube for those reasons but the yu tubes do not have higher intermodulation figures. Installed the 3cx3000f7 by setting its grid ring on the top of the homebrew template and holding the grid ring down with two heavy homebrew aluminum halfcircle mounting strips.
Adjust the vr1 500ohm so that the the tube filament voltage middle pin of u1 is around 6. Preorder thomson csf 3cx3000a7 highmu power triode tube 1 vhf ham radio. Some 6336a tube data recommended a maximum of 500k for the grid resistors in some applications and also a minimum of 200 ohm for cathode resistance. You just have to figure out where they all are in the midst of all the new features and additional settings. If you have never used this facility before, click the help link. Russian 6p3s, 6p3se 6n3c, 6n3ce general tetrode, used in output stages of low frequency amplifiers. Qro home made linear amplifier gateway i5uxj2 rosati. Use of the data booklet may be appropriate for some questions. The 3cxa78283 highmu triode is intended for class ab2 linear amplifier service in either griddriven or cathode driven configuration. Downloads, supreme instruments manuals, tube data, and.
Input circuit a resonant tank circuit is recommended for groundedgrid operation. Please call 1800rfparts 18007372787 for availability. An old website comment suggested a maximum of 47k grid resistor. Xray properties of elements electron binding energies xray energy emission energies fluorescence yields for k and l shells principal auger electron energies. 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. 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. We have had good performance from greenstone tubes. Supreme instruments manuals, tube data, and schematics. The mass spectrum of gas a contains peaks at me mass number values of 16, 17 and 18, whereas that of gas b has peaks at me values of 14, 16, 28, 30 and 44. Page 2 failure to follow the instructions given in this cookbook and operating instructions, may affect the recipe result and in some instances may be dangerous.
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