They deliver about 2w in triode mode, or, about 5w in pentode mode. Gec, alldatasheet, datasheet, datasheet search site for electronic components and semiconductors, integrated circuits, diodes, triacs, and other semiconductors. The maximum plate voltage rating for the 6aq5 is 275 vdc. Single ended audiophile tube output 16271642 series tube audio singleended classic tube output ultralinear over designed for highfidelity, single ended, classa. Oct 18, 2012 hello all, id like to introduce a new style amp that ive just built, a 10 watt 6aq5 power section with a tmb preamp. The aa8v 6x2 superheterodyne receiver audio power amplifier. That means if you want to experiment you can use a cheapo valve junior pt or equivalent. Hello all, id like to introduce a new style amp that ive just built, a 10 watt 6aq5 power section with a tmb preamp. Hallicrafters ha5 vfo which, with its 6aq5 output tube could drive the transmitter better than other vfo types, am contacts were regularly made from 80 through 10 meters. The 6aq5 is the miniature version of the popular 6v6 octal tube. The 6aq5 mullardphilips tube designation el90 is a miniature 7pin b7g audio power output beam tetrode vacuum tube with ratings virtually identical to the 6v6 at 250 v. Fender 5f1 sparking power tube telecaster guitar forum.
The 6aq5 was designed as a cheap seats version of the 6v6. Click here or on the image above for a larger version. Ive selected a hammond 261c6 power transformer which puts out 250v c. Do not exceed that limit for very long, or youll wear out your tube. That means when you apply the fudge factor you can run em on 300 volts. May 23, 20 a centertapped heater permits operation of the tube from either a 6. Single ended audiophile tube output 16271642 series tube audio singleended classic tube output ultralinear over designed for highfidelity, single ended, classa, tube output, grain. Because of a different pinout a 9pin base versus 7pin base than an 6aq5el90. The tube was originally introduced by rca in an ad in the january, 1952 issue of qst magazine. The 1943, 1949 and 1959 sylvania tube manuals online. Except for heater ratings, the 5aq5 is identical to the 6aq5. Please see the substitutes at the top of the page for more details. The 6bq5s the power output tubes are still easy to obtain, with many different brands to choose from.
All tubes new, military equipment and have otk mark. Here youll find manufacturers data sheets and curves for many popular and some not so popular electronic valve types. This spiffy little amplifier uses a pushpull design featuring a pair of 6aq5 beam power tubes driven by a 6j6 dual triode, all of which are 7 pin miniature tubes. It does cleans well, rolls into classic marshall crunch too. As configured in the 6x2 receiver, the actual output is 4w, much larger than the 12w typical of communications receivers. Power output is on the order of 6 watts with 275 vdc on the plate and a crystal with good activity. Free vacuum tube data sheets free vacuum tube substitution. It has many circuit diagrams, using these tubes and all the information, about these original vacuum tubes. 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. Because of a different pinout a 9pin base versus 7pin base than an 6aq5 el90. This cute little 40 meter cw transmitter is nothing more than a 6aq5 oscillator coupled to the antenna. All information is deemed reliable but not guaranteed. Data sheet says keep the supply voltage down around 250 volts, otherwise treat them like a 6v6. Tube 6aq5a or rohre 6aq5a id4581, beam power tube, miniatur7pinbase b7g, usa 1940 and poweroutput shown.
A homebrew transmitter from the 1960s, updated for todays. It is the amp that i designed after my popular squirrel monkey one tube amp. Because of a different pinout a 9pin base versus 7pin base than an 6aq5el90, it cannot be used as a plugin replacement for these types. Roughly if a 6bq5 will work you can make a 6aq5 work at that circuit. If you cant find what you need here, try duncans tube data sheet locator. Key data and drawings are shown below, or you can download the 12ax7 datasheet in pdf format. The preferred oem tube of 50sera fender tweed champ and deluxe amplifiers the tungsol 6v6 has a geometry designed to safely handle the higher voltages used in guitar amps plus heavier plate and grid materials. Then i got bold and checked the 6v6 and 6aq5 data sheets. Tube 6aq5 or rohre 6aq5 id2118, beam power tube, miniatur7pinbase b7g, usa 1940 and poweroutput shown.
The target voltage should be between 90 and 5 volts. The howler monkey push pull 6aq5 guitar amp c 2012, g. The result better mids and bottom while keeping the smooth top of the classic 6v6s. It is still in use in audio applications, especially electric guitar amplifiers. Bold designators are close or identical, italic designators are different ratings, different pinouts or different filament voltages. This 1932 rca below manual provides all the data sheet information, of the first radio receiving tubes ever made, from about 1920 to 1932. Pentode for rf and amplifier applications, 12ba6 datasheet, 12ba6 circuit, 12ba6 data sheet. The 6p1 is similar to el90, 6aq5, but has a 9pin base, not 7.
But what this data shows is that, except at very high plate voltages, the tube peak performance points are all below the 12w limit. A beam power tube, it is capable of an output of 4. Ah, an opportunity to point to the original 6v6 tube data sheets. A homebrew transmitter from the 1960s, updated for today. That era of friendly local am gatherings on 3828 khz and 29. It was commonly used as an output audio amplifier in tube tvs and radios. Following the 6aq5 datasheet i was hoping for around 2watts total at this voltage.
So on a 6af6g eye tube circuit such as the one found in a stromberg carlson 420l, the control voltage comes from the screen of the if tube. Pentode for af power amplifier applications, 6bq5 datasheet, 6bq5 circuit, 6bq5 data sheet. First time i arced a tube at the socket, it was a 6aq5. There are versions of this tube with extended ratings for industrial application which are designated as 6aq5a with controlled heater warmup. There are however plate voltage limitations on the basic 6v66v6gt, the basic 6aq5, and the 6005 of 250v. I am running the plates pretty hot, max on the data sheet is 250v and i am at around 270. Following the introduction in july 1936 of the 6l6, the potential of the. A centertapped heater permits operation of the tube from either a 6. The 6l6 was released in 1936 and was first announced on page 50 of the may, 1936 issue of qst magazine. Is the 6p1t in the sophia electric baby tube the same as an el90a or 6aq5 tube. 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. Im basically working on a champ clone, but using a 6aq5 tube rather than a 6v6. 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.