Ameritron 811a replacement power tubes are available for allpurpose amateur radio service. Matched electroharmonix 6v6eh 6v6gt power vacuum tube vt rating 9. It selfbiases off, with a completely open cathode return, at about 40 volts. Key in the code for the valve tube you wish to search for and click the query button. Technical data y 811 planar tetrode the eimac y 811 tube has been specifically designed for high voltage series regulator or switch tube modulator service. Hickok documentation, manuals, schematics, and catalogs. These heavyduty 811as are a modern version of the venerable vacuum tube that has been around for a long, long time. Key in the code for the valvetube you wish to search for and click the query button. Nos tube specification sheet nos tube specification sheet. 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 tube in the picture on the ryazan website is actually the svetlana 811a product, which is now no longer manufactured. This is a list of vacuum tubes or thermionic valves, and lowpressure gasfilled tubes, or discharge tubes. Dx engineering 572b power tube dxe572b dx engineering 572b power tubes are available for allpurpose amateur radio service. Tube was made in the 197x years, old anode construction with getter.
The nl811a is a threeelectrode tube designed for use as a class b audiofrequency power amplifier and modulator it is well suited also for. Shuguang beijing vacuum tube datasheet analog metric limited. The 01 a or 01a as we write it is a storage battery triode used as detector or amplifier. Here youll find manufacturers data sheets and curves for many popular and some not so popular electronic valve types. The g811 triode is used as an oscillator in rf equipment. Svetlana outline, 160 tube sv5723 sv57210 sv57230 sv572160 svetlana sv572160 typical characteristics ef. When two or more tubes are used precautions should be taken to balance the plate currents. Electron tube data sheets electron tube data sheets, valve, tube, electron tube, vacuum tube, diode, triode, tetrode, pentode, hexode, heptode, octode, enneode. These 572bs are a modern version of the venerable vacuum tube that has been around for a long, long time. The power output is just as good as an advertised ham amp tube. Throughout history, to speed development and reduce tooling costs, newer tubes use tooling from older tubes. Tube 811a or rohre 811a id19220, transmitting triode, air cooled, uxbase 4 pins 2 thick, usa 1924. Penta laboratories vacuum tubes, capacitors and electron. These devices are we believe still available from svetlana.
The 572b is a replacement valve for the 811 transmitting tube. Popular in many brands of amateur radio linear amplifiers, these 572b tubes are a modernmanufacturing version of the vacuum tube that has been around for a long time. Penta laboratories has been the worldwide leader in vacuum tubes, electron tubes and capacitors since 1951. Svetlana technical data 572b franks electron tube data. The tubes are the ryazan g811, here is the datasheet. Typical operating conditions in amateur service are a va of 2,400 v and an output power from a pair of 400w. To be effective the uchannel must be very flat and the uchannel has to be welded to the basic anode core. Rca 836 is a half wave, high vacuum rectifier tube of the heater cathode type for. The technical data is contained in the highresolution color scans of over 20 original catalogs from 1958 to 1963. Limited quantity available, new old stock, not available for export.
The 811a is a power triode for rf or class b modulator service. Parts and accessories free shipping on most orders over. Be prepared and able to communicate in case of emergency with the largest selection at. If you like the sound of the old triodes go for grant fidelity, if you do favor a bit more modern sound, eml would be your choice. Svetlana technical data 572b franks electron tube data sheets. Feb 11, 2016 as a bonus, theyre cheaper than current production chinese 811a tubes. Dx engineering 572b power tubes are the best choice for use in all types of rf power amplifiers and in all installation attitudes. Taylor tubes is the preferred choice for fl2100, sb200sb201, 10160l, 30l1, etc. Many industrial, military or otherwise professional tubes were also produced. The 572b is an indirect descendent of the 811 tube. Highmu power triode for use in class ab2, class b, class c rf, and audio amplifiers. The compact, rugged design has very low, the insulator and the.
Only a few types are still used today, mainly in highpower, highfrequency applications. Try searching the tube data sheet locator, the worlds biggest index of tube datasheets other pages online with tube data. It is dedicated to be used in audio frequency range which requires the output power 100w. Vacuum tube 811a, triode, power amplifier, china antique. Manufacturer and worldwide distributor of vacuum tubes, capacitors and electron tubes. Diagram and data including transformer winding data for building a 75w ab2 amp using 6l6 or 807 page1, page 2, page 3, page 4, page 5, page 6, page7, download a zip file of all fgiles on the 75wab2 amplifier by clicking here 807 military specs in a pdf file. Over the past 70 years we have stayed true to our mission which is to provide premium quality products along with an exceptional customer experience. Solid state direct replacement modules are much more efficient than their vacuum tube predecessors. If you cant find what you need here, try duncans tube data sheet locator. If you own an 811a based amplifier like an ameritron al811 or al811h, do yourself a favour and get a set of ryazan g811 nos tubes aka the svetlana 811a before they run out and you are once again stuck with inferior chinese tubes. At first i built a prototype amp using the sv81 tube. This particular tube is unstable on higher hf bands even with a 47k filament ct leak resistance.
They have proven themselves in all kinds of amateur, commercial, and military service. Ei this formula works because electron velocity is tied to e, and the number of. Pdf format or 8 data sheets from the rca tt5 transmitting tube manual. Dec 03, 2012 the very cheap vacuum tube model 811a original damaged in ameritron al811h in my rf power amplifier after a year of dx. Chinese 811a available in singles or matched pairs. Electron tube data sheets electron tube data sheets, valve, tube, electron tube, vacuum tube, diode. Description the g811 811 triode is used as an oscillator in rf equipment. The 6146 beam power tube and its various descendents 6146a, 6146b was and still is one of the most popular transmitting tubes in amateur radio service.
Before the advent of semiconductor devices, thousands of tube types were used in consumer electronics. Tube 572b or rohre 572b id6385, transmitting triode, air cooled, and shown. By having the tube with a shoulder type glass envelope dome type in 1932 the designation is changed to 01a. Dx engineering 572b power tubes dxe572b free shipping. Electron tube data sheets electron tube data sheets. Dx engineering 572b power tubes dxe572b free shipping on. The tube was originally introduced by rca in an ad in the january, 1952 issue. When 811a tubes appeared from offshore, they had a modified anode. I have used 2 of these music tubes in my al811 amp with good results for the past 6 months. Ryazan g811 aka svetlana 811a vk3bl xu7agas ham radio blog.
Vacuum tube 811a, triode, power amplifier, united states. The nl811a is a threeelectrode tube designed for use as a class. Direct heating cathode, medium power consumption triode is used for class a amplification. Tube data vintage info from the age of vacuum tubes. Afterwards i built another one using the 811a tube. The 6146 series of tubes followed on the heels heels of the famous 6l6 beam power tube, which was the first power tube to use the electron beam principle.
A normal tube, at least all the normal samples i have about 50 tubes of various types, self bias to about 40 volts. Net tube data here youll find manufacturers data sheets and curves for many popular and some not so popular electronic valve types. Usa brands jan military, rca, us manufactures, each tube as been tested by rf parts company test lab. Ameritron 811a replacement power tubes 3800811a free. The svetlana 572b may be used as a direct dropin replacement in equipment designed for the 811a, t160l or 572b. Now i want to try out the model 572b and also the mod 811a. Uchannels on the anodes of 811a and 812a tubes are expensive. The 811a vacuum tube it is a power triode capable to output 10 15 watts in a single ended class a2 configuration, in a three stages circuit using interstage transformer in the driving stage. This is a good replacement for advertised ham 811a tubes for amps and at a much cheaper price. Sv572160 sv572 tube 811a 811a tube 811a audio amplifier svetlana sv57230 500 watts audio amplifier diagram sv572 audio amplifier text.
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