It also has slightly less plate resistance, with slightly higher transconductance, but near equivalent amplification factor of the 12au7. A rca53 class b twin amplifier the 53 is a heatercathode type of tube. Many of these items have been discontinued by the manufacturer. Medium 7pin other characteristics of this type are the same as for type 6n7. Over the years i have amassed many tv tubes and many of these tubes are interesting because they contain many tube sections in one package. We strive to keep as many product in our warehouse, however, once stock is depleted, sometimes it. About nj7p tube database search the resource is currently listed in in a single category. With almost datasheets and the visitor counter indicates over 4000. Eirc electronic tubes factory data sheet ecc8112at7 page 1 of 4 telephone. The next step was to move and permanently enclose all the components from the breadboard to a wooden board and voila, the tv tube regen radio was born.
Downloads, supreme instruments manuals, tube data, and. In my listening experience, these 12bz7 are very, very clear articulate, and tend to emphasize treble a bit. You will find these tubes that have white ceramic and some that have pink or. As back in the era, similar schematic and service info was available for purchase from sources such as sams photofacts, but these printings were a nocost bonus for readers. The obvious differences are the pinouts loctal vs octal. Colonial model 652 5tube broadcast shortwave superhet radio service data sheet march 1935 radiocraft.
Swagelok tube fittings is that the tubing must be softer than the fitting. Welcome to the tube data sheet locator, a popular web resource for finding data on vacuum tubes. Eventually we will see an end to these cheap tubes as that supply eventually dries up. Radio service data sheets these schematics, tuning instructions, and other data are reproduced from my collection of vintage radio and electronics magazines. 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. This database has been accessed 151402 times since january 1, 2001. I have more than 100 pieces, most of them were made in 60s and 70s, this batch is from 1962. This data is scanned and may contain errors caused by the ocr software. Note that the radio is transformerless and the tube filaments derive their power from 120v mains while in series with a 15uf 250v nonpolarized. If i wanted a 572b tube new, i would only consider rf parts and then only order their taylor tube with the longest warranty. The gi7b t is a very rugged metal ceramic tube built during the cold war for use on russian tanks and other military vehicles. Every effort has been made to insure the accuracy of this reference, however, i assume no liability for the results of.
The brimar cv4004 is an excellent uk made 12ax7 with a quasi boxed anode. We have designed the grid and cathode connections using full contact finger stock to insure that you have the best rf connection possible. Tube 6ag7 or rohre 6ag7 id3125, vacuum pentode, octal int. Can the 7af7 be rolled in for a 6sn7 in any pre amp using the 6sn7 i currently use a blue circle bc. The key to selecting proper tubing for use with metal. The tube database search site cgi scripts by justin poirier. Every effort has been made to insure the accuracy of this reference, however, i assume no liability for the results of using information contained herein. The same can be said for the glass sweep tubes which were no more than a couple of dollars in the 1960s. This data sheet contains suggested allowable working pressures for assemblies of swagelok tube fittings with tubing of diverse materials. This link is listed in our web site directory since thursday jan 3 2008, and till today nj7p tube database search has been followed for a total of 2187. If this checks out as ok, ill start to put together a shopping list for the rest of the project components. If the page is blank click here rca 6fq7 6cg7 datasheet. May 28, 2014 the gi7bt is a very rugged metal ceramic tube built during the cold war for use on russian tanks and other military vehicles.
Complete tube data is in every single box, like big transmitting us wwii tubes. Notify me of updates to 6j51p 6zh51p 6ej7 ef184 tube. Rca53 class b twin amplifier the 53 is a heatercathode type of tube. If you have never used this facility before, click the help link. Click to see all 6sn7 6sn7gt 12sn7 12sn7gt in stock. These sockets are professionally crafted by k4poz and w4zt to provide you the best socket for your retrofit or new construction project. The basic research i have done between the 2 tubes using tube data sheets and they seem to indicate very similar characteristics. From a pricing vantage point other than the one time purchase of. The 12bh7a is also 38 taller than a 12au7, and draws twice the heater current 150ma more than the 12au7. January 1939 radiocraft table of contents wax nostalgic about and learn from the history of early electronics.
These sockets are designed for the best possible connections to the tube while allowing full air flow around the socket for more than adequate tube cooling. But if it is microphonic, it may still be a fun tube to try in your phaseinverter position if youve got a 12ax7 there now microphony will not be a problem in the pi. Basic data electrical parameters heater voltage, v 12. The main category is vacuum tube resources that is about vacuum tube, electron tube, thermionic valve, valve resources. The 1943, 1949 and 1959 sylvania tube manuals online. For more equivalents you can use the search warning. Our preferred method of payment is via wire transfer of funds. Df6na datasheets gi7b similar to aeg lda also gi70b same tube no cooler, metalceramic transmitting triode up to 9 cm.
From a pricing vantage point other than the one time purchase of the adapters there is a big difference in price for the tubes. Screen dissipation maxw these specifications are provided asis, with no warranty. The gi7bt is a more ruggedized version of the same tube featuring a fatter ceramic element but otherwise the same as the thinner gi7b. The tube is completely removable and insertable from the anode side of the chassis. Ptfe has the lowest coefficient of friction of all polymers. Antique radio forums view topic question on 6sg7 tube. The only reason that comes to mind is that if two tubes have slightly different sound qualities i could blend their characteristics at this point if say an rca and a zenith are inserted together in one side of the amp.
The socket can be mounted either on top of a chassis or sub mounted below a chassis which is pressurized for forced air. I have more than 100 pieces, most of them were made in 60s and 70s, this batch is from 1962 complete tube data is in every single box, like big transmitting us wwii tubes. I change this directory structure often and your links will not work correctly. Ge essential characteristics, the whole 228 page book in an indexed pdf file big, 11mb. The resource is currently listed in in a single category. Also i have halved the value and doubled up the output tube grid resistors. Out of the tube pile, i picked a 6jt8 and pulled up the datasheet on the tube. I found a large amount of matched pairs tektronix, inc. Quality russian 6j51p tube was made in ussr for the military equipment. Since i am still fairly new to tube building i am surprised that so few components need to be changed when doubling up tubes. Originally designed for the output stages of audio frequency amplifiers, the el84 can deliver up to 17 watts. It is a thermionic valve of the power pentode type. Also i wonder in question q1 if both input tube grids need to be engaged with the volume pot.
Double triode quick reference data anode current ia10ma transcoductance s5,5mav amplification 60 heating heating is indirect by ac od dc, with serial or parallel supply. This data booklet is provided with aqa alevel chemistry question papers. It should be much faster than the old server at my house. Barkhausens valveequation tube data end of life values tube data sheet information tube glossary rohren glossar tube parameters. This link is listed in our web site directory since thursday jan 3 2008, and till today nj7p tube database search has been followed for a total of 2187 times.