Everyone here at eurotubes took a step back when we first auditioned the new jj 6550. The 6550eh offers the maximum power of any 6550 with the linearity guitar and bass players want. The jj 6550 is a valve that is based on the famous american 6550a and since its launch it has proved an excellent valve for all applications. A 100v converter will drop the heater voltage too much, not good for tubes. The jj 6550 will not make as much power as the jj kt88 and the kt88 is thicker sounding, in fact some players feel its too thick, so if you want a fatter sounding tube than a 6l6 that breaks up earlier than a kt88 then the jj 6550 may be just right. This is often referred to as selfbias or autobias because it does not require a bias adjustment when tubes are changed. Pdf file format, developed by adobe systems, represents in electronic mode all the elements of a printed document such as text, photos, links, scales, graphs and interactive elements. Convert jpg to pdf online for free adobe acrobatus.
The 6540, 6540pi and 6550 have been tested and certified to en50122 for security grade 2, environmental class ii, by the dutch testing and certification body telefication b. J6i to jpg batch converter how do i convert multiple j6i files to jpg. The product is intended to be connected to a listed burglar compatible control unit or a power supply that has a voltage output range of between 9 to 15 vdc and provides a. After a short warm up and bias for the jj 6550s we were all nodding in approval about the moderate volume clean tones which were warm with a nice. The large plates allow for more efficient cooling and headroom. Jj to pdf batch converter how do i convert multiple jj files to pdf. The 6550eh is the finest current production tube for any amp using 6550 or kt88. As you will soon realize, reaconverter will help you avoid spending countless hours. Vacuum tube 6550, jj electronics the jj electronic 6550 is a robust tube built. Thicker plates, improved heat dissipation, higher transconductance, and increased linearity are just some of the inherent aspects of the new sovtek super 6550s. The singleended amplifier circuit uses a 6550 high power tetrode vacuum tube in the output stage. To convert kilojoules to joules you simply multiply your kilojoules by. This tool emits one rotating laser beam plus one plumb beam and is. Yjc converts 6l6, el34, 6550, 7027or 6v6 to el84 the yjc is for amplifiers with cathode biasedpower tubes.
Other us manufacturers such as ge and sylvania followed and produced 6550 tubes also, but with a straight bottle. The grids are referenced to ground chassis by a 220k resistor. Vacuum tube 6550we, sovtek antique electronic supply. Easily combine multiple jpg images into a single pdf file to catalog and share with others. Original pear shaped 6550 tube was introduced by tungsol back in 1955 as an answer to european kt88 tube. May 28, 2010 most output valves in hifi valve amps 40 watt and less are cathode biased in the same way that preamp valves are biased. Tungsol 6550 1963 triple getterno holes with ge mark. These specifications are provided asis, with no warranty of any kind.
Most 6550 s and especially new production tubes are pretty sterol sounding so our benchmark was to ab the jj 6550 against some of our nos ge, rca, sylvania and coke bottle amperex 6550 s. Superior highpower octal beam tetrode, suitable for any amp using 6550 or kt88. Referenced documents purchase separately the documents listed below are referenced within the subject standard but are not provided as part of the standard astm standards. Construction backingpremierbac dye method nylon fiber type face weight 27 ozsy 915 gramsm pile density 8,935 ozy pattern repeat 36 w x gauge stitches per inch standard size 12 ft 3. Jjelectronics 6550 power tubes available in singles, matched pairs and quads. Singleended 6550 tube amp schematic with 12dw7 driver stage. Ge and sylvania later developed uprated 6550a tubes with straightsided glass.
Convert jj to pdf with reaconverter batch conversion. Bought a eh 6550 to replace a jj kt88 that blew up in my homebrew amp. In audio amps, jj 6550 performs similar to jj kt88, with excellent three dimensional soundstage that jj kt88 is known for. The original 6550 made by tungsol came out in the late 1940s and had a plate disappation rating of 35 watts with a screen rating of 5 watts. This software is extremely efficient in managing a wide range of batch conversions. So i bought some of the cp jj 7027as, which are really just larger bottled 6l6gcs i have found out, and installed the 278cx. Any tube experts here have experience with both of these tubes, or with the jj in particular. That said, most any of the tubes are interchangeable with the possible exception of the lesserquality chinese tubes. Convert and create pdf from various types of files like word doc, excel xls. Honestly, ive not had much luck with jj s of any kind. D4052 test method for density, relative density, and api gravity of liquids by digital density meter. Most of the datasheets are in pdf format and some are links to other html pages.
Besides jpgjpeg, this tool supports conversion of png, bmp, gif, and tiff images. J6i to jpg batch converter ultrafast image converter. In physics, energy is a scalar physical quantity that describes the amount of work that can be performed by a force, an attribute of objects and systems that is subject to a conservation law. No limit in file size, no registration, no watermark. In order to promote public education and public safety, equal justice for all, a better informed citizenry, the rule of law, world trade and world peace, this legal document is hereby made available on a noncommercial basis, as it is the right of all humans to. This is often referred to as selfbias or autobias because it does not require a. Nov 27, 2005 just picked up a new jadis today, and im none too pleased with the sound.
Tube amplifier setsvacuum tubeswireyellow jackets tube converters. As i have had blissful sonic experiences with two of the models lower on the totem pole from this manufacturer, the only thing i can trace it to is the sovtek 6550. Jj electronics view pdf brochure for 6550 jj electronics. Oxidecoated, unipotential cathodetoheater potential, max. After a short warm up and bias for the jj 6550 s we were all nodding in approval about the moderate volume clean tones which were warm with a nice. However, jj has since derated their tube to match the orig. The 6550 can be used interchangeably with its european rival, the kt88. Jpg to pdf convert jpg images to pdf documents online. The i6550s glass screen has proven to be the most rugged and responsive surface for electronic signature capture available.
The jj 6550 power tube is a beam pentode tube providing 35watts of power for anyone looking to give their system the best chance of producing the tone they are chasing, whether thats for your guitar, bass or hifi amp. The jj 6550 is an excellent choice for bass heads, tube organs, and hifi. Tube amplifier sets vacuum tubes wire yellow jackets tube converters. You can view this document in free acrobat reader, navigate through the page or the whole document which is one or more pages usually. Purchase jj 6550 vacuum tubes online, in stock and ready to ship. We were all wondering what jj had been able to do with a 6550 design, so before we lit a quad up we went back to our agreed upon benchmark amperex 6550 s for another listen. Convert jpg to pdf in seconds using the adobe acrobat online tool. Two pairs of 6l6s from jj went bad on me within a couple months. Plus, the 6550 features the revolutionary vcs filtershaking system, which. Transform jxr to pdf page layout files online and without ads. Recently had some work done on it and the tech put in jj 6550s. We suggest you read this instruction manual thoroughly before using the instrument.
Jj to pdf batch converter ultrafast image converter. Plus, the 6550 features the revolutionary vcs filtershaking system, which maximizes the machines dustfree performance. I am not certain of the dissipation specs on the reissue ts 6550 or the ehsovtek 6550kt88, but i would guess around 3540w. That said, most any of the tubes are interchangeable with the possible exception of the lesserquality chinese tubes in almost any piece of gear designed for a 6550 or kt88. The sovtek 6550we was designed to be the finest 6550 ever produced.
Hodgy burns in the jj s and gets rid of the duff ones. It had a metal envelope which was popular at that time for use in radio sets since it was less likely to break than a glass envelope. But i havent tried their 6550 s since i never had an amp that used them. Whether your application is a hifi amp, guitar, or bass amp, the jj 6550 tube will be up to the job. The only other option would be for me to go back to e34ls by jj or gt. Astm d6550 15 standard test method for determination of. Sovtek 6550we is a straight bottle 6550 modeled after the original ge 6550a. Buy electroharmonix 6922eh vacuum tubes online, in stock and ready to ship.
The jj big bottle 6ca7 is another welcome addition to the already extensive line offered. A true 7027a can handle those voltages, but you are taxing a jj tube. Vacuum tube 6550, electroharmonix antique electronic supply. Pdf converter is a online webbased document to pdf converter software. Hey tb, ive used the jj kt88s in my svtvr for a few years. The ingenico 6550 offers a monochrome graphical screen with electrostatic signature capture. Just picked up a new jadis today, and im none too pleased with the sound. Discussion in the workbench started by csquare4, dec 6, 2011. Easily convert kilojoules to megajoules, convert kj to mj. The sovtek 6550we was designed to be the finest 6550 ever produced thicker plates, improved heat dissipation, higher transconductance, and increased linearity are just some of the inherent aspects of the new sovtek super 6550s. The integrated tactile keypad features responsive, brightly colored keys making pin entry or any other keypad functions. If you want a sweeper that lasts, the model 6550 power sweeper defines industrial durability.
Dec 25, 2008 i am not certain of the dissipation specs on the reissue ts 6550 or the ehsovtek 6550 kt88, but i would guess around 3540w. 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. This extra headroom in a 6550eh equipped amp means bass players can finally realize the full dynamic range of the instrument and the sweetest tone available preamp tubes i mostly use jj and i use a jan phillips 5751 in the pi to add note clarity. Octal u f 6,3 v i f c a1,6 a typical characteristic.
The 65406540u, 6550 6550u, 6540pi6540upi is not a complete alarm system, but only its part. I recently plugged some tung sol reissues into one of my. This free online jpg to pdf converter allows to combine multiple images into a single pdf document. It delivers a little less power than the kt88 but with a fatter tone. Generally im a nos tube snob but these new build jjs 6550s absolutely rock in my egnater.
The 6540, 6550 and 6540pi are designed to detect movement of an intruder and activate an alarm control panel. This rugged machine takes on any industrial surface, smooth or rough, indoor or outdoor, with equal results. The jj 6550 is superbly well balanced with the mids sitting in the correct position and providing plenty of detail. We were all wondering what jj had been able to do with a 6550 design, so before we lit a quad up we went back to our agreed upon benchmark amperex 6550s for another listen. The resulting performance advantages include 5% higher output power, increased reliability, greater headroom, and superior tone. Use of these parameters shall be entirely at the users own risk. You can view this document in free acrobat reader, navigate through the page or. The design was based on the 6l6gc tube with higher power ratings, and featured a coke bottle shaped envelope like the european kt66 tubes. Of all the current types, i like sovtek 6550 s and kt88s both the eh and sovtek brands, the new chinese 6550as, kt88s, and kt100s, eis kt90s, and jj s kt88s, although lately, ive gotten some disturbing reports about jj field failures with their power tubes. Available in singles, apex matched pairs, apex matched quads, or apex matched sextets please. The yjuni is the only other yellow jackets tube converter that comes in the short style. D19 test method for hydrocarbon types in liquid petroleum products by fluorescent indicator adsorption. The quick and simple way to handle your files is to get a quality piece of software, such as reaconverter. This tube is a true workhorse and a great value, and shipped as original 6550 tube in many amps from the factory.
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