Please give your contribute add a tube to this list. The equivalents for thermionic valves or vacuum tubes, including the diode, triode, tetrode, pentode. The philips 5r4gys is a recent find by upscale audio in upland. Tube 50c5 or rohre 50c5 id1071, beam power tube, miniatur7pinbase b7g, usa 1940 and poweroutput shown. 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. Free math problem solver answers your algebra, geometry, trigonometry, calculus, and statistics homework questions with stepbystep explanations, just like a math tutor. This substitution list should be used in one direction only that is, an industrial type to replace a standard type. Due to coronavirus covid19 we have limited staff working on location.
Why order tubes when you can use up the ones you have laying around. 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. Franks electron tube pages american substitutes for foreign types this data is scanned and may contain errors caused by the ocr software. The ultimate tube substitution guide january 1, 1998 edition. However, because we believe that tube caddy tube substitution.
Tested on a jackson 648a or a hickok 533a where all were well into the green. The big problem with those tubes is that they were commonly used in series filament strings designed to work directly off 100 v ac. This month id like to present a few ideas for making substitution eye tubes work for the relatively pricey 6u5 and 6e5 tubes. Franks electron tube pages american substitutes for. In the early 60s sylvania published a tube manual with a back section devoted to basing diagram references.
Barney developed the circuit values, and has used and proven the circuit in his own restorations projects. This topic came up on the collins reflector some time ago with one fellow insisting they were no different than any other tube. Th e composite tube s ubstitu tion g uid eboo k co ntain s 5 100 receiving tube s ub sti tu tions. This base reference gives a quick way to find which tube used the same pin connections.
The main goals for this project were to use as few parts as possible and to keep costs down. Adaptor circuits in the back of this book may help. Shipping in the us is free via usps first class mail. Indian land, sc, usa, 29707 hi all, does anyone recall why the first aa5 miniature output tube was the 50b5, but not too long afterward, and for a long time, the 50c5 became the standard tube. The term all american five abbreviated aa5 is a colloquial name for mass produced. Find the number of possibilities 50 choose 5 mathway. Full text of tube substitution handbook internet archive. This ne w t ube s ub stitut io n guidebook tube substitution. Of course, with any bad caps andor resistors throwing voltages off, this could cause parts of the circuit like the oscillator to stop working. The bold listings are shown as equivalents in a tube manual, and could probably be sustituted without any changes other than rewiring but check dissipation rating for power tubes. It has no bulky power transformer, and the minimal number of. Tubes in the tube column are directly replaceable with tubes in the replacement column. This is a list of vacuum tubes or thermionic valves, and lowpressure gasfilled tubes. It is so easy to build that it could be assembled and playing in a halfhour with no problems at all.
The 50c5, introduced in 1948, is electrically identical to the 50b5, but has a revised. Owner jim cross and his knowledgeable staff continue to offer the same great expertise and service. After completing a s5 electronics k12m tube amplifier kit, i became hooked on tubes. The kwm2a uses a bunch of them, and theyve never seemed to last worth a damn. If you run a 12ax7 with heaters in parallel, then the current is 0. If no replacement is shown for a particular tube number, there is no replacement and you must use original tube number to replace a defective tube. Franks electron tube pages foreign substitutes for american types. How to use this chart for tube substitution tube substitution is difficult without special books on it. Mar 31, 20 6x5gt tube substitute discussion in ampscabs tech corner. It was commonly used as an output audio amplifier in tube tvs and radios. The standard line up of tubes were designed so that the total rated voltage of the five tubes.
I want to thank barney wooters for much of the information contained in this article. The 50c5 is a beam power tube, commonly used as an audio amp. The 385w4 is reasonably easy replace it with a 1n4xx diode. Franks electron tube pages foreign substitutes for. The 6u8a is the one tube i could do without in my life. Tom, with the 50c5 in place of 35c5, all tubes will have slightly low filament voltage.
Free vacuum tube data sheets free vacuum tube substitution. This is a 3tube stereo amplifier that is good for a beginner, or a budgetconscious person. Im looking to tubes that were used or can be used as substitution of other more common tubes. Without a thorough knowledge of tube types and their substitution possibilities, you may be overpaying for your new or. One reason im bringing this up is that im working on an early 50s emerson radio45rpm phono combination unit, and someone apparently tried to get it working since it was apart and there were two 50c5 tubes with it, and the tube socket empty all other tubes in their correct sockets. The information in the sylvania tube substitution manual is furnished without. The term all american five abbreviated aa5 is a colloquial name for massproduced, superheterodyne radio receivers that used five vacuum tubes in their design. A few specialquality tubes did not have a standard equivalent, e. See more ideas about vacuum tube, tube and electronic books. In most cases the tubes manufactured to the european system have an exact equivalent tube in the american system and vice versa. I was wondering what effect the 50c5 has on operation. Tube substitution handbook will be useful to antique radio buffs, classic car enthusiasts, ham operators, and collectors of vintage ham radio equipment. This 1960 tube caddy below book also includes all tube numbers from all over the world.
Aug 9, 2014 information about vacuum tubes, tube manuals,books,amplifiers instant download. Another tube with identical pinouts to the 6cz5 is the 6em5, and i have 300 noss of those. We have added a shopping cart for easier ordering and an improved search feature. Aug 9, 2014 information about vacuum tubes,tube manuals,books,amplifiers instant download. A killer tube, but huge and requires lots of space bigger than a kt88. The required parts for this amp can be found in any aa5 tube radio, though the 35c5 tubes were most commonly found in the old 7 tube table top amfm sets. Print page need 6u8 or 6u8 substitute info the am forum.
Open library is an open, editable library catalog, building towards a web page for every book ever published. Does it change the operating voltages on the other tubes and throw everything off. 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. Logged to steal ideas from one person is plagiarism.
All the schematics i have seen for a 50c5 power tube with a 34w4 rectifier have a pentode 12au6 preamp tube except for the garnet 5p, but my amp is clearly. In addition, marine operators, microwave repair technicians, tv and radio technicians will find the handbook to be an invaluable reference tool. I have an old silvertone amp, a 91 and one of the three tubes has gone bad. Becoming an engineer supplier directory books events. Although tube substitution should not be performed indiscriminately, there. This book or any parts there of may not be reproduced in any form or in any language. 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. I love and appreciate tube based audio gear and own sixteen pieces of tube gear between my two reference systems. Franks electron tube pages foreign substitutes for american types this data is scanned and may contain errors caused by the ocr software. This is a suitable replacement for any 50c5 tube type. 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. Good news is they are still available at the site ive listed below. The ultimate tube substitution guide january 1, 1998.
There are versions of this tube with extended ratings for industrial application which are designated as 6aq5a with controlled heater warmup. 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. Of course, with any bad caps andor resistors throwing voltages off, this could cause parts of. All brands of 5687, my favourites are the tungsol and raytheon, but the five star ge and. My favorite tubes and their substitutes by robert h. This manual tells what radio receiving tube will substitute for another and work as a replacement. Hoffman amplifiers tube amp forum, please give your contribute add a tube to this list. It is labeled a 6x5gt and im wondering if there is a suitable replacement. You can replace it with an lm380 or 386 with a bit of doing but. These radio sets were designed to receive amplitude modulation am broadcasts in the medium wave band, and were manufactured in the united states from the mid1930s until the early 1960s. 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.
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