12md8 tube data book

An amplifier tube is one used to amplify a voltage applied by the input circuit between two electrodes, a control grid and the cathode. In my listening experience, these 12bz7 are very, very clear articulate, and tend to emphasize treble a bit. Made in russia, these premium driver tubes are compatible with any 12bh7 tube. If the page is blank click here sylvania 12dw7 datasheet. There are many equivalent tubes with different names, some identical, some designed for ruggedness, long life, or other. 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. Battery types, ubiquitous before the 1930s but since then only for mobileportable equipment with a. In82 blue dream nixie clock in black brilliance case. Explore brimar d8 and discover alternative parts, cad models, technical specifications, datasheets, and more on octopart. This tube is essentially two 6c4s or two ec90s in the same envelope. This is a list of vacuum tubes or thermionic valves, and lowpressure gasfilled tubes. Oct 14, 2016 the el360 is an output pentode introduced by mullard in october 1958.

The underscore and these letters are not part of the tube type number. This is a list of vacuum tubes or thermionic valves, and lowpressure gasfilled tubes, or discharge tubes. I found a large amount of matched pairs tektronix, inc. The type 955 triode acorn tube is a small triode thermionic valve vacuum tube in usa designed primarily to operate at high frequency. Tube 12sq7 or rohre 12sq7 id2638, double diodetriode, octal int. The tube list at the tube center is very extensive, as is our inventory of vacuum tubes, grid caps, sockets, valves and capacitors.

Etc, alldatasheet, datasheet, datasheet search site for electronic components and semiconductors. I note in my tube manual that the 6dj8 is listed as having a nominal u amplification factor of 33, while the 7es8 is listed here as having a nominal u of 65. Many industrial, military or otherwise professional tubes were also produced. Star city antique radios index to the receiving tube manuals. Although originally marketed as pentode tubes for use in early television receivers, they found additional uses in audio and radiotelephone equipment. The brimar cv4004 is an excellent uk made 12ax7 with a quasi boxed anode. If the page is blank click here rca 6fq7 6cg7 datasheet. Barczynski, who offered me a lot of diskspace online, i can put all my datasheets on the web. In82 8 2 nixie rohrenixie tube made by melz tube factory in moscow, russia a wonderful great looking nixie tube, made in the eighties. Here is the data from the rca tube manual rc19 for similar. The el360 is an output pentode introduced by mullard in october 1958.

A few specialquality tubes did not have a standard equivalent, e. The following list shows the tube types i have entered in my database, with exception of the service types e. The tube list at esrc1 vacuum tubes is very extensive, as is our inventory of vacuum tubes, grid caps, sockets, valves and capacitors. No data is found on this tube, except for the filament power which is 3. The data sheet shows that for high voltage regulator and pulse modulator use the peak voltage can reach several kv. The 12au7 and its variants are a miniature ninepin b9a base mediumgain dual triode vacuum tube. Double triodes of the 12au7 family have a centertapped filament for use in either 6. Before the advent of semiconductor devices, thousands of tube types were used in consumer electronics. Pocket databook raytheon receiving tubes one electron.

The series shares the eia 9bf pinout with a number of other miniature pentode tubes of the era. The 12bv7, 12by7, 12by7a, and equivalents were a class of mediumlow gain, pentode vacuum tube amplifiers using the noval socket configuration. Please see the substitutes at the top of the page for more details. It belongs to a large family of dual triode vacuum tubes which share the same pinout retma 9a. Under the 6av6 same as the 12 volt heater unit except for. A compactron used in television sets to supply power to the anode of the picture tube. The datasheet shows that for high voltage regulator and pulse. Tv tube, 43cm diagonal, electrostatic focusing, magnetic deflection, white fluorescence, tetrode system, 110 degrees deflection angle 431qq44 identical to 430qq44, except with metalbacked screen.

Vacuum tubes fall into three mainly noninterchangeable categories regarding their heater or filament voltagecurrent, though some tubes heaters run at both a standardized voltage and current, e. National union official hand book of radio tube characteristics. One side has a gain factor of 100 the other side has a gain factor of 20. Tube 12md8 or rohre 12md8 id5436, triple triode, novar, b9e bigger than noval, usa 1959 and shown. The information contained on this website is for information only. Analysis and measurement procedures revised and expanded by julius s. Try this tube for some interesting gain reduction effects on certain amps. Other chroma circuit tube types in clude a 6y9 double pentode, shared by the burst amplifier and 2nd video ampli fier, and a 6x9 triode pentode, function ing in the 1st and 2nd bandpass ampli fier stages. 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. Bold designators are close or identical, italic designators are different ratings, different pinouts or different filament voltages. List of vacuum tubes wikimili, the free encyclopedia. As of 2012 update the 12au7 continued to be manufactured in russia, slovakia jj electronic, and china. Interesting tube discovery ecc83212dw7 volume reduction. Tubes 12a 12z5 the tube list at abc vacuum tubes is very extensive, as is our inventory of vacuum tubes, grid caps, sockets, valves and capacitors.