I am one of those who had humming noise with 6sn7 new tubes on darkvoice 336se headphone amp. Free vacuum tube data sheets free vacuum tube substitution. The 6sn7gt is a british made glass tubular version of this much loved double triode valve from the 1940s. Same basing as the 6f6 and a 400 ma heater, versus 700ma for the 6f6. 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. Tube testers triplett tube tester the trout underground. The former has pointy ends and a slimmer waist for long throws while the latter is plumper for passing. At first it was a difference like the subtle difference between an american football the electroharmonix and a rugby union ball shuguang treasure. Ib merchandise and publications can be purchased through the ib store at email. I picked up a heathkit tt1 with its tta11 adapter in the lid. I love and appreciate tube based audio gear and own sixteen pieces of tube gear between my two reference systems. The 6sl7 has a plate resistance of 44kohms which is more than 6 times higher than the rp of the 6sn7. For you solidstaters, let this be a perhaps frightening glimpse into that curious medical condition known as.
Most of the datasheets are in pdf format and some are links to other html pages. To convert from a 6sc7 to 6sl7 assuming the former was using both plates, move the wire from pin 3 to pin 1, and add a jumper between 3 and 6. The 6sl7 was never as popular as the 6sn7 due to the 6sn7 s widespread use in television chassis designso this tube does not turn up as often whenever vintage tubes are being sold. Describe fully what is seen when anhydrous calcium nitrate is heated in a test tube and. The 6sn7 is basically two 6j5 triodes in one envelope. Physics higher level paper 1 19 pages monday 15 may 2017 afternoon 1 hour international baccalaureate rganization 20 17 m174phsi hpmen tz 1xx 2217 6507. An increase in intensity in the sound is heard for the first time when the air column length is. Two 6n7 s or 6n7 gs can be operated in a class b output stage with the two triode units of each tube connected in parallel to give a power output of 20. Lawrence berkeley national laboratory introduction. Double triode, 6h8c datasheet, 6h8c circuit, 6h8c data sheet. Oct 24, 2011 6cs7 mediummu twin triode tube vt6cs7 6cs7 twin triode tube, new old stock, boxed. Tube 6sg7 or rohre 6sg7 id2714, vacuum pentode, octal int. The most popular is the rare 6h8c metal base with 1578 printed on the glass.
But that high amplification factor comes at a cost. Department of chemistry lensfield road cambridge cb2 1ew t. 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. The first successful tube of these octals was the 6j5, which was already covered in its own tube of the month post. Toob madness or the 6sn7 zoo by raymond chowkwanyun. My favorite tubes and their substitutes positive feedback. The specs for the 6sc7 are pretty close, so id be surprised if theyre too different. Swagelok tube fittings is that the tubing must be softer than the fitting. Eico 667 tube tester eico 667 tube tester 600a receiver tv ham radio bin d5 solid state tube tester jackson dynamic tube charts dynaquik tube tester 667 tube tester heathkit tc2 accurate instrument tube tester model hickok 600a tube tester dyna quik 600a tube tester receiver tv radio bin d4 vacuum tube tester checker hickok 600a eico 625 emc tube tube tester analyzer tube. This is a performance test of the schiit saga preamplifier using two different tubes. Ge essential characteristics, the whole 228 page book in an indexed pdf file big, 11mb. Key in the code for the valvetube you wish to search for and click the query button.
Also i have halved the value and doubled up the output tube grid resistors. Test data for hickok 539b and 539c tube testers author. The 6j2p pentodes are miniature devices enclosed in glass bulb and are provided with a sevenpin base, rigit leads and an indirectly heated oxidecoated cathode. Welcome to the tube data sheet locator, a popular web resource for finding data on vacuum tubes. None of these tubes made use of all pins of the octal base. Was there any way to use this tube in triode or ul mode. This tube has the classical grid construction and the tube. In a booklet entitled business facts about sylvania radio tubes, we find the following four reasons why the tubes identified by the flashing s on a green oak leaf are good tubes. Tube rolling of schiit saga preamplifier audio science. Of course power output will depend on plate and screen voltage, load impedance, and so on. At the end of the examination, fasten all your work securely together. Sound wise i would say they are neutral with a hint of mid range warmth, transparent, well extended highs, detailed wide soundstage with very good depth and separation, bass is tight and hard hitting, but could use just a tad more depth, otherwise an excellent sounding.
Solution to humming noise from new 6sn7 tubes headphone. In its day, it was considered a normal triode with somewhat different curves from the 6j5. If this checks out as ok, ill start to put together a shopping list for the rest of the project components. By coincidence, im working on a silvertone 4590 which also uses 6n6 tubes. Cambridge assessment international education cambridge.
Since i am still fairly new to tube building i am surprised that so few components need to be changed when doubling up tubes. Each half of the 6sn7 is electrically equal to the 6j5 triode. Description the 6j2p 62 highfrequency shortcharacteristic pentode has been designed for h. Free vacuum tube data sheets free vacuum tube substitution guide manuals free radio tube data manuals free tube base diagrams. 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. Antique radio forums view topic heathkit tt1 tube tester. Easily select individual manual pages and print out. Typical radio receiver and amplifier circuits 1 2 3 4 5 6 7 8 9 10 11 12 14 15 16. Tube 6sn7 or rohre 6sn7 id3337, double triode, octal int.
It is, in the proper circuit, a wonderful sounding tube, and audiophiles would do well to try the nos vintage 6sl7 tubes before buying anything currently made. After reading many threads including suggestions for mod i had hard time to believe darkvoice would design and manufacture any amp that would not work well with driver tube 6sn7. If you have never used this facility before, click the help link. Tube datasheets here youll find a modest collection of datasheets for some popular tubes.
Picked up a pair of psvane cv 181 tmk2 for my feliks elise a couple weeks ago and i have to say im quite impressed with them. Try searching the tube data sheet locator, the worlds biggest index of tube datasheets other pages online with tube data. Dont do this with a new western electric 300b, but take a defunct octal tube such as 6sn7 the miniature tubes are too fiddly, break the envelope by wrapping it well in a cloth and tapping it with a hammer. I didnt want to swap tubes from amp to amp because i took a dremel to the tabs on 2 of them. As to the sound, i only have experience with the 6sl7, but its a warm sound with nice low mids. Tube 6sf7 or rohre 6sf7 id2849, diodepentode, octal int. With almost datasheets and the visitor counter indicates over 4000.
Antique radio forums view topic eico 666 which tube. The 12jn8 is a miniature tube containing a mediummu triode and a sharpcutoff pentode. There are also russian 6n8s in both metal and plastic base, that are considered inferior to the 6h8c. Etc, alldatasheet, datasheet, datasheet search site for electronic components and semiconductors. I am working on scanning and placing on this page the entire rca hb3 tube manual. I got this idea that if i could run ul at a reduced screen voltage that this tube would rock, so i wired an 0a2 in series with the screen grid. The 6sn7 packs two triode systems into one bottle, both with the same specs as the 6j5. The maximum mark for this examination paper is 40 marks. The key to selecting proper tubing for use with metal. I think the 1178 data booklet was coletronics newest. This one has a lot of pages from the european philips tube manual. The three tubes on the right are variants, a 6j5g, a 6j5gt and a metal 6j5. Without a thorough knowledge of tube types and their substitution possibilities, you may be overpaying for your new or nos tubes you employ, or just pick the wrong ones.
It is a very instructive exercise to take a tube to pieces and to measure the internal dimensions. The number of marks is given in brackets at the end of each question or part question. Antique radio forums view topic 6n6 replacement tube 6k6. Originally released in 1939 it was officially registered in 1941 by rca and. The 6k6 appears at first glance into the sylvania tube manual to simply be a less powerful tube. The soundstage illusion is deeper and taller with the shuguang than the electroharmonix. The 6n24p double triode is designed for amplification of highfrequency voltage in cascade circuits of radio equipment of wide use. Although offered in good faith, there are no guarantees with this information. Alan douglass book tube testers and classic electronic test gear settings for 6sn7 and 6sq7 tubes seem to correlate with the cole 7315 chart. Also for older tubes like 01as which are not on my 1178 chart which version of the tube chart. I have a cayin tube amp that uses chinese 6n6 tubes does anyone know of a replacement nos tube that would work as an upgrade. Supreme instruments manuals, tube data, and schematics. Sylvania precision operations are handled by men trained for years. General double triodes, used as an wide band hf power amplifier.
There are no 4 pin tube setting on the roll chart is it capable of testing 1920s 4pin tubes. This is historic data that we found on the internet. Rca rc10 tubemanual 1933 complements of tim reese and harvarduniversity. As mentioned above it is a high mu triode with an amplification factor of 70 vs the 20 of the 6sn7. Buy products related to 6sn7 tube products and see what customers say about 6sn7 tube products on free delivery possible on eligible purchases. Xray properties of elements electron binding energies xray energy emission energies fluorescence yields for k and l shells principal auger electron energies. You will need to be an experienced test technician to carry out these repairs. Pearson edexcel level 3 advanced subsidiary and advanced. The unit and extra tubes are on loan from kind member. Downloads, supreme instruments manuals, tube data, and.
730 757 1046 442 1221 1098 222 495 1218 1019 351 1213 1340 988 1379 923 212 1251 791 506 1445 66 1030 235 1183 1220 1023 1147 942 588 948