This is a list of vacuum tubes or thermionic valves, and lowpressure gasfilled tubes. The yellow label on the base has the sylvania logo. I wouldnt expect to get a real idea of the quality of a tube type from two random used tubes. You will find thousands of tubes or valves with interesting links. Tube 6d4 or rohre 6d4 id4750, thyratron, miniatur7pinbase b7g, usa 1940 and shown. I usually tend to use 5u4gbs as the rectifier when needing a high current tube rectifier and account for the larger voltage drop with the correct transformer however the 5ar4gz34 is a good tube as well. The sylvania type 6d4 is a min iature triode thyratron intended for use as a relay tube or wide band noise generator. All of the tubes were visibly upset at any screen voltage above 300 volts. You even can look up radio models with a certain tube line up. The information contained on this website is for information only.
The 6c4 is a miniature, mediummu triode suitable for use in a wide variety of general purpose applications. Numbers shown in light blue background are coldcathode tubes. According to the rca hb3 data sheet for the 1614 dated 121946, the tube is called a. Decided to order the ruby and it was perfect in both sound and feel. A few specialquality tubes did not have a standard equivalent, e. 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. Just make sure you do a very very very good job of soldering on pins 4 and 5.
Lawrence berkeley national laboratory introduction. 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. Ge essential characteristics, the whole 228 page book in an indexed pdf file big, 11mb. Although offered in good faith, there are no guarantees with this information. Tube 6s4 or rohre 6s4 id5078, triode, vacuum, noval, b9a and poweroutput shown. It is commonly assumed that the russian 54 5u4s rectifier is equal to the western 5z4g, and its true. One caveat, these trannies do not like to have any dc voltage on teh primary winding, it is good for capacitor coupled parafeed only. One miniature thyratron, the triode 6d4, found an additional use as a potent noise source. This 1960s sylvania 5r4gyb rectifier tube has a tall bottle, smooth black plates, and a side o getter. 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. Each tube is given a 45hour runin under, which maintains rigidity under shock and vibration. Bomber 4d32 tube read 32508 times 0 members and 1 guest are viewing this topic. Vacuum tube 6b4g, sovtek antique electronic supply.
Tubes cant be substituted since they have different bases but are electrically similar. A flat sheet beam is electrostatically deflected across the anode which is. I put a jj 5ar4 in it and didnt like it at all it was harsh sounding and stiff. I like jj for power tubes but the ruby is perfect for the rectifier. Thanks to frank philipse for supplying the above pdf datasheet. Sovtek is proud to announce the release of the sovtek 6b4g vacuum tube. Vacuum tube 5ar4, ruby tubes antique electronic supply. A thyratron is a type of gasfilled tube used as a highpower electrical switch and controlled. Even if it was introduced as relay tube, 6d4 was almost universally used as excellent. It is especially useful as a local oscillator in high frequency and very high frequency receiver circuits. If any electricity gets across that little gap between those two pins you can kiss the tube, the socket and possibly your power transformer. Unlike traditional 6b4gs, which consist of dual triodes connected in parallel inside the tubes envelope, the sovtek 6b4g utilizes a single triode design with a directly heated cathode element. Bold designators are close or identical, italic designators are different ratings, different pinouts or different filament voltages. Even if it was introduced as relay tube, 6d4 was almost universally used as excellent noise.
Plate loading choke can be anything from 10h to 50h, with enough curent capability for the tube being used. Download duncans utilities and tube database software. Triode nuvistor tube data provided by duncan amplification. The 76 and 6p5 are the same tubes with different bases 5 pin and octal respectively. With almost datasheets and the visitor counter indicates over 4000. The plate voltage in the ranger i runs around 550, with solid state rectifiers a bit over 600 volts on the modulators and 6146. Our 6x4 6x5 5852 rectifier tubes are suitable replacements, they have a reliable response. Like mentioned 6j5, 12 6sn7 and 12 12au7 will all work in most circuits designed for 6c4 but this wont be found in books. While both tubes have the same basing arrangement, the 6ca4 has higher maximum ratings than the 6v4.
You will need to be an experienced test technician to carry out these repairs. To put item to basket click on the basket picture or price. In this latter role the valve is connected as a diode with the grid strapped to the cathode and the valve is mounted. Try to find 3 or 4 new tubes of the same type and match them up. Xray properties of elements electron binding energies xray energy emission energies fluorescence yields for k and l shells principal auger electron energies. Hhscott vacuum tubes 6cw4 6ds4 nuvistor applications. The 5ar4 and gz34 is an indirectly heated cathode tube which means it. This updated design eliminates differential resistance loading. This is historic data that we found on the internet. If you make this connection you will have a 700 volt potential difference on those two pins, depending on the set of course. The cablelite 751 is a higher modulus harder ink compared to cablelite lts ink. Please see the substitutes at the top of the page for more details. I am working on scanning and placing on this page the entire rca hb3 tube manual.
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