The el84 tube may have failed the gas test, meaning it did not have a pure vacuum due to high usage. Tube 6a8 or rohre 6a8 id961, pentagridconverter heptode, octal int. Vacuum tube 6aq8 ecc85, dual triode amplified parts. One triode would be used as an rf amplifier and the other as the local oscillator. It was commonly used as an output audio amplifier in tube tvs and radios. Tube 6aq5 or rohre 6aq5 id2118, beam power tube, miniatur7pinbase b7g, usa 1940 and poweroutput shown. The thin glass tube envelope is 21 mm in diameter and, excluding the b9a base pins, is 47 mm tall. Most of the datasheets are in pdf format and some are links to other html pages. The information contained on this website is for information only. The 6n8s double triode is designed for amplification of lowfrequency voltage. Etc, alldatasheet, datasheet, datasheet search site for electronic components and semiconductors. Miniature type used as phase inverters or twin resistance coupled amplifiers in radio and audio equipment. The el84 is a thermionic valve of the power pentode type.
Tube 6aq8 or rohre 6aq8 id3725, double triode, noval, b9a and vhf shown. The el84 is smaller and more sensitive than the octal 6v6 that was widely used around the world until the 1960s. Both 6p7s and 6bg6 tubes has the same pinout and nearly the same characteristics. Try to find 3 or 4 new tubes of the same type and match them up in the circuit. Tube, 6aq56aq5w6005 6aq5 tube, 6aq56aq5w6005 beam power amplifier. The ecc85 telefunken were installed in my ear 509 monoblocks. Summary parameters of transmitting pulse tubes please, click on the tube type to get its data sheet. I wouldnt expect to get a real idea of the quality of a tube type from two random used tubes. Any homemade or commercially built cabinet of suitable size more than 14 x 12 x 6inch may be employed. Rfc3, the plate rf choke, is wound for operation at low impedance over the range from 3.
This tube is not a direct 6bg6 clone, it is an octal modification of g807 tube, which one was soviet clone of famous 807. Svetlana 6bm8 high performance audio dual package, triode and pentode he svetlana 6bm8 is a single glass envelope containing both a power pentode and triode. An interchangeable north american type is the 6bq5 the retma tube designation. There are versions of this tube with extended ratings for industrial application which are designated as 6aq5a with controlled. Double triode, 6h8c datasheet, 6h8c circuit, 6h8c data sheet. Test data for hickok 539b and 539c tube testers author. It has a pentode plate dissipation rating of 7 watts with convection cooling. The spare el84 tube i had tested exactly the same way, so i am not sure if this was a valid test. It is used in the power output stages of audio amplifiers, most commonly now in guitar amplifiers, but originally in radios. All tubes new, military equipment and have otk mark. Russian svetlana factory 5c8s is doubleanode full rectifier tube the tubes are never used.
A single 6bm8 may be used as an economical low power mono block amplifier or a pair of 6bm8s, in ultra. I am working on scanning and placing on this page the entire rca hb3 tube manual. The 6p7s output beam power tetrode is designed for operation in line scanning output stages of tv receivers. Please, return your results and opinion of tube testing for publication.
I used a european to american tube cross reference booklet. A homebrew transmitter from the 1960s, updated for today. Vacuum tube 6aq8 ecc85, dual triode antique electronic. The 6aq5 mullardphilips tube designation el90 is a miniature 7pin b7g audio power output beam tetrode vacuum tube with ratings virtually identical to the 6v6 at 250 v. 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.
General double triodes, used as an regulator in electronic stabilizer circuits. As of 3505, i have finished scanning the general section, receiving tubes part 1, receiving tubes part 2, miscellaneous, specialpurpose receivingtype tubes, thyratron, ignitron, and glowdischarge tubes, and most of the. With almost datasheets and the visitor counter indicates over 4000. You can use acrobat for viewing and printing pdf files. Vacuum tube 6aq8 ecc85, dual triode highmu twin triode.
Nos tube specification sheet nos tube specification sheet. Its a major improvement over typical nos 6aq8 ecc85 tubes ive used in the past. The 6me6 vacuum tube is a novar type used as a horizontaldeflection amplifier in color and bw tv receivers. At the bottom of this page youll find some links to other tube datasheet sites in case you cant find what youre looking. The envelope shows that this westinghouse valve was manufactured in germany. The 76 and 6p5 are the same tubes with different bases 5 pin and octal respectively. The coiled heater wire and the insulation applied to the wire are on the left and enter the bright cathode tube, the emissive coating being confined to the length within the anode. The el84 6bq5 was the only tube it had data for on the scroll chart. The two independent valves are screened by a rectangular plate across the diameter of the envelope. Our preferred method of payment is via wire transfer of funds. The 6aq8 was the standard double triode for use in the front end stages of fm radio receivers. Each triode unit is independent of the other except for the common heater. The 6n8s double triodes are enclosed in glass bulb and are provided with an octal base and an indirectly heated oxidecoated cathode.
I have more than 100 pieces, most of them were made in 60s and 70s, this batch is from 1962. Complete tube data is in every single box, like big transmitting us wwii tubes. Substitutes are given as a guide only please refer to original manufacturers data sheets to ensure that a substitute is. Data from or other sources as supplied by john atwood.