In electronics, a vacuum tube, electron tube in north america, tube, or thermionic valve or valve in british english is a device controlling electric current through a vacuum in a sealed container. This link is listed in our web site directory since monday sep 30 20, and till today vacuum tube data has been followed for a total of 338 times. Browse products from the vacuum tubes category listing products sorted by popular, page 1 the first electronic amplification of sound was done with vacuum tubes. Explains nonmathematically the fundamental principles upon which all vacuum tube circuits are based.
Aug 9, 2014 information about vacuum tubes, tube manuals,books,amplifiers instant download. The 12ba6 is a miniature, remotecutoff pentode primarily designed for use as a highgain, radiofrequency or intermediatefrequency amplifier. The resource is currently listed in in a single category. Before the advent of semiconductor devices, thousands of tube types were used in consumer electronics. The electron stream is effectively switched on and off by the oscillator. Vacuum tube 12be6 hk90, heptode miniature pentagrid converter designed to perform. The global marketplace for vintage and handmade items. Many industrial, military or otherwise professional tubes were also produced. For another early work, look for theory and applications of electron tubes by reich. But ive accidentally had a 6be6 in place of a 6ba6 same as the 12s with different filament voltage and the be did not. The pentagrid converter is a type of radio receiving valve vacuum tube with five grids used as. Supersedes 12ba6 through 12 bf6 d and r sheet dated 463. Rca 12sk7gt vacuum tube new old stock excellent condition original box in fair condition tested on a hickok ks 15874 l2 cardmatic tube tester the all american 5 version that uses this tube has this line up converter. This is a list of vacuum tubes or thermionic valves, and lowpressure gasfilled tubes, or discharge tubes.
Gi46b wo cooler russian new tube power amplifier qro hf vhf uhf gi46b. Tynes book saga of the vacuum tube originally published by howard w sams inc. Tube data vintage info from the age of vacuum tubes. In collecting circles firsts seem to be held in high regard.
Filament characteristics heater characteristics electrical data maximum ratings characteristics and typical operation converter service separate excitation oscillator characteristics, not oscillating posted in categories. Detailed, complete with plenty of math and drawings. A video of the early days of radio and vacuum tubes is pbss empire of the air. The tube list at the tube center is very extensive, as is our inventory of vacuum tubes, grid caps, sockets, valves and capacitors.
It was one of those jobs in which you could trigger the noise on or off by flipping the envelope of the tube with your finger nail. The pictures are representative of the general forms of the tube types, and internal construction can vary from brand to brand. Oscillator grid voltages are measured by vacuum tube voltmeter. But ive accidentally had a 6be6 in place of a 6ba6 same as the 12s with different filament voltage and the be did not work at all. All about vacuum tube guitar amplifiers paperback may 1, 2009 by gerald weber author 4. Vacuum tube 12be6 hk90, heptode antique electronic supply. Case of the bad bypass, december 1963 electronics world rf cafe. Data presented include those characteristics and ratings essential to fast. About vacuum tube data the resource is currently listed in in a single category.
Rca says the ratings are exactly the same for the 12be6 and the 6be6. But i always check current through the tube, and compare it to a tube manual. The thin glass tube envelope is 18 mm in diameter and excluding the b7g base pins, is 47 mm long. Rca 12sk7gt vacuum tube for all american 5 tube table. From vacuum tube to thinking machine by john bryan lewellen and a great selection of related books, art and collectibles available now at. Amplifier builders guide, hugo gernsback, 1947, 64 pages from the editors of radiocraft, this practical guide concentrates on the design and construction of audio amplifiers. We guarantee every vacuum tube we sell for thirty days. See more ideas about vacuum tube, tube and electronic books. Evatco has over 25,000 nos tubes in stock ready to ship, we have over 1900 types and access to a lot more. Herein you will find a collection of vintage engineering texts, vacuum tube datasheets, and other obsolete information, presented free of charge and without annoying advertisements. Filament characteristics heater characteristics electrical data. Antique radio forums view topic eico 667 12be6 tube.
It has many circuit diagrams, using these tubes and all the information, about these original vacuum tubes. To change frequency the incoming signal is mixed with a local oscillator. The simplest vacuum tube, the diode, contains only two elements. Click the button below to add the 12be6 vacuum tube to your wish list. There are less than a dozen modern chinese and russian manufacture tubes in this listing, and they are clearly identified in the descriptions. The heptode is classically used as a frequency changer in a superhet receiver. The 6be6 is a miniature heptode primarily designed to perform the com bined functions of the mixer and oscillator in. The new old stock tubes we carry are generally various old stock us brands. This 6v6 has the standard rugged construction weve come to expect from jj which. Rma registration record covering the rca tube types 6at6, 6au6, 6ba6, 6be6, 12at6, 12ba6, 12be6, 35w4 and 50b5 2327 kb 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.
Covers how tubes work and how to design circuits around them, with chapters on class aab1 and ab2b amplifier design, power supplies, and more. Another spot to look, which is especially useful if youre looking for replacement types and tubes with similar bases or characteristics, is the nj7p tube database. Information or data about vacuum tube or thermionic valve pin connections is always useful to have to hand. I recently came across a 1923 westinghouse aeriotron wd11 vacuum tube. I am working on posting the rca hb3 tube handbook on line on this. An excellent reference on the history of the vacuum tubes and the growth of the electronics industry is gerald f. Vacuum tube, vintage radio and other electronics information. The development of the pentagrid or heptode sevenelectrode valve was a novel development in the mixer story. Aug 9, 2014 information about vacuum tubes,tube manuals,books,amplifiers instant download. The main category is vacuum tube resources that is about vacuum tube, electron tube, thermionic valve, valve resources. Very technical, but goes into depth about what makes a vacuum tube do its thing. This was one of the first tubes available for consumer radios.
The 12be6 is a converter tube but in looking at the pin connection diagrams for it compared to the 12ba6, it looks as if it could work in place of the 12ba6 andor 12au6 under the right conditions and circuit connections. Be prepared and able to communicate in case of emergency with the largest selection at. Only a few types are still used today, mainly in high. Basics how does a tube work vacuum tube electrodes diode valve tube triode tetrode beam tetrode pentode equivalents pin connections numbering systems valve sockets bases. Case of the bad bypass, december 1963 electronics world. This 1932 rca below manual provides all the data sheet information, of the first radio receiving tubes ever made, from about 1920 to 1932. This is a suitable replacement for any 5894 tube type. Miniature pentagrid converter designed to perform simultaneously the combined functions of the mixer and oscillator in superheterodyne receivers. Nos tube specification sheet nos tube specification sheet. Rca 12sk7gt vacuum tube for all american 5 tube table radios. Radio and television both use the superhet principle.
Free vacuum tube data sheets free vacuum tube substitution. A wide range of nos new old stock vacuum tubes orders placed before 1pm weekdays will be despatched the same day excludes orders containing backordered products. For other diyaudiorelated information, please visit. With the wide variety of tubes that are in use there are many. Includes practical circuits and practical questions and answers. Browse products from the vacuum tubes category listing products sorted by popular, page 12 the first electronic amplification of sound was done with vacuum tubes. Data from or other sources as supplied by john atwood. Tube 12be6 or rohre 12be6 id2630, pentagridconverter heptode, miniatur7pinbase b7g, usa 1940 and pentagrid new shown. If memory serves, both are available on line somewhere i found mine on fleabay and old book shops. It is one of the three constants of a vacuum tube, the other two being its gain. 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. Tube 12be6 or rohre 12be6 id2630, pentagridconverter heptode, miniatur7 pinbase b7g, usa 1940 and. Tube 12be6 or rohre 12be6 id2630, pentagridconverter heptode, miniatur7pinbase b7g, usa 1940 and.
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