The design purpose was in vhf radio and television between 80 mhz to 220 mhz. May 26, 2011 the 35w4 and 35w4a are the only half wave rectifier tube of its type as far as pin configuration and filament resistance for a series type line operated tube radio. They tell you some tubes wont work in all circuits, but dont explain why. Substitute table type 6g replacement 6g06rx vacuum. Those tube adapters work great and that tube substitution works just fine. This base reference gives a quick way to find which tube used the same pin connections. The 6gh8 was commonly used in early color televisions, and was a very, very unreliable tube. Substitute table type 6g replacement 6g0 6rx vacuum electronic radio tv tubes the tubes in the replacement table allows to select identical pinforpin replacement tubes and improved characteristic and foreign made substitute types. While they can still be had, many choose to rewire their amplifiers to use the common 6u8 or various other substitutes.
Welcome to the tube data sheet locator, a popular web resource for finding data on vacuum tubes. Siemens ecf802 for mcintosh 6u8 6gh8 6ea8 mr67 mx110. Chances are we have it, but it hasnt been listed yet. Ive seen the ads saying the 6ju6 tube is a substitute for the 6bj6 tube used in the drake transmitter equipment. Tube substitution handbook by howard sams and a great selection of related books, art and collectibles available now at. Unbeatable prices on thousands of guaranteed vacuum tubes for sale, vintage nos hifi audio tubes, radio tubes, ham and industrial ready to ship. The two tube types are not pinout interchangeable, as their triode sections are pinned differently.
Complete with nutritional information, preparation, ingredients, and product usage, the comprehensive guides below can help you navigate the best products for your patients. The 6ea8 has an amplification factor of 40, the 6cq8 an amplification factor of 40 and a completely different tube. Hhscott vacuum tubes phase splitter inverter overview. This month id like to present a few ideas for making substitution eye tubes work for the relatively pricey 6u5 and 6e5 tubes. These tubes are not cheap chinese or russian made tubes, most of these tubes were manufactured during the period of the 1950s 1970s. Franks electron tube pages foreign substitutes for. I started repairing color tv sets in the mid60s when i was in junior high, and the 6gh8 was used extensively in the color related circuits. The guy in the link below says you can do a direct sub with a 6u8 for a 6gh8 so if you have the adapter according to him you can.
The 1l6 50a1 others 1u4if 0a2 and 0b2 the solid state 1l6 is a direct replacement for the 1l6 vacuum tube. If you are looking for a stronger tube for the mic preamp v1 the 2 best tubes for the replacement are the 6gh8 and 6lm8. Orr w6sai it should be noted that 6u8 s are notorious for causing a multitude of problems due to grid to cathode shorts that sometimes does not show up on a tester. To prevent damage to equipment, it would be wise to double check with a good tube manual before actually doing a substitution. This section lists all picture tubes from 10 inch to 30inch. To search for tube data, simple click the search link on the left. The 6u8a is a triode pentode by designation but is constructed as a beam tetrode. This topic came up on the collins reflector some time ago with one fellow insisting they were no different than any other tube.
However, because we believe that tube caddy tube substitution. Jul 03, 2011 i dont know, i can only tell you what people say in the archives of the tube asylum, which you can search yourself as well. This test tonight confirms this to be true that the 6gh8 is a good replacement. Id go with it since the amp works best with it and with a substitute it can take allot of tweaking to get it working the same.
The oddmix vacuum tubes replacement substitutions tables section has a wide variety of popular tube substitutions for rare antique, vintage, exotic, original, discontinued and collectors vacuum tubes, electron tubes, audio tubes and fleming valves. Tube substitutions there are a lot of amps that can use different tubes to change or improve their tone for different styles of playing. You can use a european tube in a usa radio for example. The 6gh8 family of tubes sound just as bad as the old 7199s. The thin glass tube envelope is 20 mm in diameter, and excluding the b9a base pins.
To buy 6lq8 to buy 6lr6 beam power tube to buy 6lr8 triodepentode to buy 6lt8 to buy 6lu6 to buy 6lu8 for futterman h3aa otl amp also, 12 pin pc mount sockets in stock to buy 6lw6 beam power tube to buy 6lx66lf6 power tube to buy 6lx8 to buy 6ly8 to buy 6m11 dual triodepentode to buy 6ma6 to buy 6mb8 to buy 6md8 triple triode to buy 6me6 beam power tube to buy 6me8 to buy 6mf8 to buy. Great 1953 sylvania below substitution tube manual for late 1930s to early 1950s. Discussion in audio hardware started by portisphish, aug 14, 2006. The first electronic amplification of sound was done with vacuum tubes. I have particular need for high quality 6u8 s as that is the linestage tube in the mcintosh mx110 preampand i have tossed several pairs already. In the early 60s sylvania published a tube manual with a back section devoted to basing diagram references. The ultimate tube substitution guide january 1, 1998 edition. Test results using the 6ju6 tube as a substitute for. 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. The person store i bought the amp from, said that tube rolling the 6u8 s is a possibility. You will find thousands of tubes or valves with interesting links. Sometimes the solder joints are painted with red paint at the final inspection. I do not have experience with buying 6u8 s, but it seems that nos 6u8 tubes are more plentiful than 12ax7, 12at7, 69226dj8 and thus priced lower. We carry everything from nos rca 6l6gc black plates to jj 12ax7s.
Tube 6u8 or rohre 6u8 id3778, triodepentode, noval, b9a and shown. Tube depot carries a selection of 7199 pre amp vacuum tubes. We carry brands like western electric, mullard, telefunken, sovtek, jj, electroharmonix, genalex and tungsol. Radio receiving tubes and swap tips for the new 7 pin and 9 pin miniature tube types. If you are looking for a radio or tv tube thats not listed, ask us. Print page need 6u8 or 6u8 substitute info the am forum. New old stock mil spec pre amp compatible tubes from sylvania, ge and other various brands. This data is scanned and may contain errors caused by the ocr software. Most were made in the usa, western europe, or japan by american companies such as dumont, ge, itt, motorola, raytheon, rca, sylvania, westinghouse, and zenith. In some cases there might not be enough range on the bias pot to bias both tube types. I think you might make the substitution of ecf82 6u8 for 6an8, but, like steerpike says, you would have to rewire the tube base. Both of these are direct plug in replacement tubes that both have an amplification factor of 46.
Please sit back, relax, and read about these extreemly rare ecf802 series made for critical sonic military to scientific medical applications in germany in the late 1960s. Th e composite tube s ubstitu tion g uid eboo k co n. If you have you probably understand my interest in a lower cost substitute replacement. The fifth section of this book lists picture tubes and their substitutes. Here youll find a modest collection of datasheets for some popular tubes. Tube 6u8a or rohre 6u8a id3986, triodepentode, noval, b9a and universal shown. If you have never used this facility before, click the help link on the left for detailed instructions. The ultimate tube substitution guide by charles kittleson, january 1, 1998, vacuum tube valley edition, paperback. What does nos mean, anyway commonly known as nos, the term new old stock simply refers to tubes that were made years ago but have never been used. Capacitance has been carefully adjusted at each of the pins to match the 1l6 vacuum tubes internal capacitance. I dont know, i can only tell you what people say in the archives of the tube asylum, which you can search yourself as well.
Vacuum tubes replacement substitutions tables electronic. I want to thank barney wooters for much of the information contained in this article. If solder joints are all painted, you will know that unit is unmolested. Aug 14, 2006 el34 or 6u8 tube change for different sound. I have read multiple times that the 6gh8 is a good replacement for the hard to find and expensive 7199. The valve would be used as a mixer with the triode as local oscillator. If you want a more permanent solution it is not a very big job to rewire the tube socket to use 6u8 tubes. In most cases the tubes manufactured to the european system have an exact equivalent tube in the american system and vice versa. You can still find nos 7199 tubes on ebay and online stores. That being said, with more and more tube types being out of production i think people will have to find ways of substituting tubes in there favorite amp or. For more information on 6eu7 vacuum tubes including pinouts, ratings, application and possible substitutions visit 6eu7 in duncan amps. Identifying vintage nos vacuum tubes by brand country and.
Although there are tubes smaller than 10 inch, they are practically out of date and only one or two have substitutes. Below is our current selection of 6eu7 audio tubes. All these links open in a new browser window so that you can return quickly to this page without having to reload. Free vacuum tube data sheets free vacuum tube substitution guide manuals free radio tube data manuals free tube base diagrams. Barney developed the circuit values, and has used and proven the circuit in his own restorations projects. Curt hit it pretty good with the substitution book. On the matter of using a 6gh8 in place of the 6ea8 6u8. Upgrade your 6u8 application to quiet low noise nos valvo 6u8 vintage nos decades old tubes. These beautiful philips valvo tubes are outofproduction and were made in canada by philips.
Nos philips 6u8 matched pair with 7199 tube convert to. It is quite possible that we have the tubes under a different substitute number. Theres no denying that the 6bf5 runs hot in those receivers. There are a lot of amps that can use different tubes to change or improve their tone for different styles of playing. Since all worldwide 7199 tube production has ceased and is not expected to. I love and appreciate tube based audio gear and own sixteen pieces of tube gear between my two reference systems. The typical avc system of the day had a range of about 20 volts, from no signal to max signal. The seimens seem to work well in that slot, and they sound good too. You even can look up radio models with a certain tube line up. Maybe im getting testy in my old age, but it really annoys me to read that substitutes for a 6sq7 are.
The kwm2a uses a bunch of them, and theyve never seemed to last worth a damn. This ne w t ube s ub stitut io n guidebook tube substitution. You dont get data on late tubes like the 6au6, 6u8, or television sweep tubes. Antique radio forums view topic substitute 6e5 for 6u5. Riverstone audio vacuum tube pin straightener for 9pin b9abase 12ax7 el84 5670 and 7pin b7gbase 5654 6au6 6aq5a tubes hardened stainless hand held straightens vacuum tube.
Most of these datasheets are in english except where noted otherwise. That could be useful if you find an old tube and wonder if it could become a receiver. It is much handier to replace a foreign tube with an american tube from your own stock. Free vacuum tube data sheets free vacuum tube substitution. Thankfully, there is a solution by implementing a simple wiring change and substituting the. Stick with the 6u8 6u8a in this socket and look for shortlife tube problems elsewhere william i. Most of the datasheets are in pdf format and some are links to other html pages. You reach this tube or valve page from a search after clicking the tubes tab or by clicking a tube on a radio model page. It uses modern fet and bipolar transistors in addition to a dual gate mosfet for the mixer section. You should find the tone of the nos 6u8 equal to if not better that the 7199. In ecf82 mullard put both designations on the envelope indicating equivalence. The only good substitution book that should ever be published is one that only allows a better tube to be used and not reverse. Changing a type of tube used on a printed circuit requires either an adapter or some creative changing of the traces on the circuit board. All our tubes are hand tested before they are shipped out to you.
Until the jj el844 came on the scene in 2011 there really were no substitute tubes for el84 6bq5 tubes. The 6u8, 6gh8, 6kd8, 6678, and 6ea8 all are interchangeable though slightly different. Yes, 6l6 gc s the suffix matters can be used in an el34 amp with correct biasing. With the very large number of vacuum tubes or thermionic valves that were produced and as a result of the multiple vacuum tube numbering systems that were in use, there are generally equivalents for most types of tube.
Hi bob, the 6e5 was designed as a higherperformance replacement for the 6u5. Co mb ines i n one volu me the con tent of th e bas ic book and suppleme nt s i thro ugh iv. Th e composite tube s ubstitu tion g uid eboo k co ntain s 5 100 receiving tube s ub sti tu tions. The 6gh8 and other 9ae base tubes is almost exactly the same tube except a small difference in pinout. This substitution list should be used in one direction only that is, an industrial type to replace a standard type. Check out our new interesting tube facts down below. Tube substitution handbook english version aireromalazio. This 1960 tube caddy below book also includes all tube numbers from all over the world. During manufacturing production runs of particular scott types the factory often substituted the presently more expensive and hardertofind, 7199 for the older and more common 6u8 6gh8 6bl8. All known test cards have been listed there and checked for errors which often happened when max funke released cards for the w19 or. The 6u8 tube can be used if a minor circuit modification is done.
If the equipment is already designed for an industrial tube, a standard receiving tube will not usually work as efficiently or as long as the original. The 6u8 a is the one tube i could do without in my life. Audio asylum search of tubes asylum enter your search criteria. Good news is they are still available at the site ive listed below. My favorite tubes and their substitutes by robert h. It is the only tube that you can use without using an adapter or rewiring your amplifier if you amplifier calls for the 7199. If that case, youd have to change the value of the bias range resistor. Antique radio forums view topic tube substitution guides. Printable nutrition product guides abbott nutrition. How to use this chart for tube substitution tube substitution is difficult without special books on it. This base reference gives a quick way to find which tube. Raytheon radio tube data and substitution chart by raytheon manufacturing company softcover, 48 pages. You can roll tubes and see what sounds best to you, and then sell.