The product has been restored to full functionality and tested. The loop creates a localized charge field that when catalized by the chemical in the silver splotch, burns up excess gas molecules that may have leaked inside of the tube. Octal, io k8a, usa 1935 and frequency converter shown. I could get a pile of them cheap and not have to worry about burning them down using them 8 hours a night as bedroom amps. This chinese ef86 6267 tube type is commonly called a 6j8 tube in china. Substitute data application 9dx preferred substi tutes subs ti tutes 6ly8 6eb8 6w8 6gn8 6je8 neonoval type with frame grid pentode used in color and bw tv receivers. Ac 12v 6j1 valve preamp tube preamplifier buy tube. General double triodes, used as an wide band hf power amplifier. Antique radio forums view topic 6n6 replacement tube 6k6. Ac 12v 6j1 valve preamp tube preamplifier, find complete details about ac 12v 6j1 valve preamp tube preamplifier, tube preamplifier,stereo tube amplifier, tube audio amplifier from amplifier supplier or manufacturershenzhen fydea digital technology company limited. Pentode mode, ug280v the above chart is for ug2100v. Etc, alldatasheet, datasheet, datasheet search site for electronic components and semiconductors.
The first number listed is the emission test result percentage of class a data sheet. Electronic valve philips, pentode, type 6u7g, 19461960. The 6u7g was made in huge quantities during world war ii 19391945 for use in. This karola is a 5tube acdc radio using all loctal tubes. The model number and year are unknown likely 1946 or later. The 6c4 is a miniature, mediummu triode suitable for use in a wide variety of general purpose applications.
By construction, we specifically mean the getter and its placement. Downloads, supreme instruments manuals, tube data, and. Of the two tubes on test, the one presented is the weaker, although still matching original curves. Tube 6j8g or rohre 6j8g id2696, triodeheptode, octal int. If you have never used this facility before, click the help link. Swagelok tube fittings is that the tubing must be softer than the fitting. Sonically the ei and the eh tubes are more robust, the chinese tube more laid back and, i think, less resolving, but so far. British made by gec in hammersmith uk, this is the best sounding 6j5gt 6j5wgt triode tube type. Datasheet for qs301 nixie tubes from an unknown chinese tube data book. The shuguang chinese 6j8 is direct replacement of ef86 6267. Remote cutoff pentode designed for use as an rf or if amplifier in radio receivers. If you make this connection you will have a 700 volt potential difference on those two pins, depending on the set of course. The 6j9p 69 highfrequency shortcharacteristic pentode has been designed for use in wideband amplifiers of electronic devices. An increase in intensity in the sound is heard for the first time when the air column length is.
Wcox056107b watercooled packaged chillers with helical. Please see the substitutes at the top of the page for more details. Xray properties of elements electron binding energies xray energy emission energies fluorescence yields for k and l shells principal auger electron energies. The list below gives 4, 5, 6, and 7 pin types and their octal equivalents. The eabc80 6ak8 has a better shielding between heater and the other electrodes, particularly to the triode control grid, in order to suppress hum.
These labels were chosen to indicate that the observed temperature standstill period results from an unforced internal. Drop in tube replacement 6n6 v 6cg7 audiogon discussion forum. This is a suitable replacement for any 6j5 6j5g 6j5gt 6j5wgt triode tube type. Ge essential characteristics, the whole 228 page book in an indexed pdf file big, 11mb. Miniwatt was the brand used by philips on their valves. This allmetal tube is a direct copy of original us 6sh7, built since mid30s. The triode is used as a voltageamplifier or sync separator tube, and the pentode is used as a videoamplifier tube. Using the pentodetriode tube as the amplifierphase splitter over the decades many different ways have been developed to produce the two out of phase signals to drive pushpull power output amplifiers.
Ac 12v 6j1 valve preamp tube preamplifier, find complete details about ac 12v 6j1 valve preamp tube preamplifier,tube preamplifier,stereo tube amplifier,tube audio amplifier from amplifier supplier or manufacturershenzhen fydea digital technology company limited. Using the pentodetriode tube as the amplifierphase splitter. They are good quality and found in many chinese amps and preamps. There are no schematics or other information available for karola radios, and very little is known about the brand. Welcome to the tube data sheet locator, a popular web resource for finding data on vacuum tubes. Supreme instruments manuals, tube data, and schematics. The maximum mark for this examination paper is 40 marks.
It is especially useful as a local oscillator in high frequency and very high frequency receiver circuits. I am working on scanning and placing on this page the entire rca hb3 tube manual. Was the cayin designed with a different tube than the one advertised. 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 transmitting tubes, as well as all. According to the 1946 sylvania tube manual, the 6n6 is a dual triode with direct coupling from one section to the other, and is the octal equivalent of the 6b5. Gce asa level 2420u101a physics as unit 1 data booklet. Drop in tube replacement 6n6 v 6cg7 audiogon discussion.
This affordable rectifier tube is for use in any 5u4 socket. The key to selecting proper tubing for use with metal. By coincidence, im working on a silvertone 4590 which also uses 6n6 tubes. Lawrence berkeley national laboratory introduction. It probably would not surprise anyone to learn that while there are thousands of different tube numbers, many of these are just the same electronic type with a different envelope or different basing. Interpretation of the post 2000 temperature standstill abstract the period from 2000 to 2016 shows a modest warming trend that the advocates of the anthropogenic global warming theory have labeled as the pause or hiatus. Triode u a 450 v u g2 450 v w a 30 w pentode u a 500 v u g2 450 v w a 30 w grid no 1 circuit resistence fixed bias 0,1 m. A clean copy of this booklet should be issued to candidates for their use during each.
Watercooled packaged chillers with helical rotary compressors installation, operation, and maintenance instructions form 6186 wcox056107b table of contents. While the getter style probably has nothing whatsoever to do with the sound quality most likely the plates do that, it is still a pretty good visual indicator of different overall construction of the. Just make sure you do a very very very good job of soldering on pins 4 and 5. With almost datasheets and the visitor counter indicates over 4000. Bold designators are close or identical, italic designators are different ratings, different pinouts or different filament voltages. 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. Double triode, 6h8c datasheet, 6h8c circuit, 6h8c data sheet. Antique radio forums view topic 5y4g is there a substitute. If any electricity gets across that little gap between those two pins you can kiss the tube, the socket and possibly your power transformer. The 6j5 is a generalpurpose triode designed for use as a detector, amplifier or ose. The one we will begin with here appears in rca tube manuals numbers rc20 through rc30 spanning the years 1960 through 1975. Singl tube pushpull u a 250 v 270 v u g2 250 v 270 v u g1 14 v 17,5 v i a 72 ma 4 ma i g2 5 ma 11 ma r a 22,5 k. Use keywords to find the product you are looking for.