Played around with it, changing signal caps and tubes, just to see how the sound changed. Tubes chosen for these special matched pairs have good balance between tube sections and close electrical parameter matching between the tubes ip and gm are within 10% and tubes are matched for gain within 5%. Tubes should be tested in everything from vintage radios to contemporary guitar amplifiers, and its easy to put all of your valves through a tube checker. 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. Amplifier accessories free delivery possible on eligible purchases. 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 vacuum tube pulls on the high voltage like a variable resistor.
Vintage tube type linear repair and buildit parts from. Order 6aq6 vacuum tubes online, in stock and ready to ship. I we suggest you refer to the arrl antenna book or the radio amateurs. Audio asylum search of tubes asylum enter your search criteria. I have 1 rca blackplate 6aq5a and 1 6aq5 blackplate, and 1 ge 6aq5 sitting here you can have if you want to drive over and get them. But 6aq5s were supposed to be a small bottle tube that was designed for a 6v6 type tone. My most recent completed project was to find a use for the dozens of 6aq5 aka 6aq5a, el90, 6005 valves that ive accumulated in my tube scrounging efforts. In some 3 tube or 6 tube units it may be desirable to rewire sockets three heaters in series across 120vac instead of all in parallel across 6. Tube amp theater dlab minuteman guitar 6aq5 head tone monster duration.
These are great sounding and were designed in later years just before the solidstate junk took over. The 6aq5 mullard philips 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. Vacuum tubes, sockets, capacitors, nixie and electron tube accessories. Tube 6aq5a or rohre 6aq5a id4581, beam power tube, miniatur7pinbase b7g, usa 1940 and poweroutput shown. You can use the search to find service types or go to the service type lists that you can access from the page more tube related stuff. Big differences tween 6v66aq5 and 6bq5el84 only need 14.
The 6aq5a and 12ax7 that are arranged vertically on the left side of the rear panel are part of the sidechain amplifier, and changing these tubes will make no difference to the sonic qualities of the comp, as they are not part of the audio path. Oct 14, 2010 the only octal tube i can think of thats close to a 6bq5 might be a 7591. For sale is this lot of 44 nos nib new vacuum tubes assume 1 or 2 might have light shop use you get 16 am6 ef91 76 ab4 76 al5 8 6 aq5a 6hg5 two 6aq5w 26 au6 6au6 a 26 au7 1 missing box tests nos new 16 at6 36 av6 36 an8 including rca, and 16. Vacuum tube 6aq5a 6hg5, tetrode, beam power amplified parts. The only octal tube i can think of thats close to a 6bq5 might be a 7591. The simplest vacuum tube, the diode, contains only two elements. Matched pair nos nib sylvania japan 6aq5a tubes fender bass gibson ga5 amp. If you have any 6bn6 circuits or experience, you can apply that knowledge when using the 6z10and the power pentode section is like the 6t9s a 6aq5a.
Lot 6ab4 6a 6aq5a vacuum 6av6 nos tubes 6005 44 nib 6au6. The following list shows the tube types i have entered in my database, with exception of the service types e. If solid state parts are an option, a capacitor input supply is a much better choice for size, cost, and weight. Vacuum tube 6aq5a 6hg5, tetrode, beam power miniature beampower. And before i knew it, i was doodling a schematic and looking through my junk box for parts to build a similar rig. Get a late tubeera data book antique electronic supply has them for year 1974 and study it. If youre working with any kind of vacuum tube assembly, then youll need to have a tube tester on hand to make sure that all of your valves are working properly. Jackson 658 tube tester manual and tube data book, manual is a reprint on full size paper will also include some calibration documents free of charge ships usps this item is sold asdescribed items must be returned in original, asshipped condition with all original packaging. You can read more about how a tube or transistor drives a tank circuit on this page. Only the 12ax7 and the 12bh7 to the right side of the rear panel are in the audio path. The path for that pull is from cathode to anode, the grids just control the instantaneous resistance of that path. A 6kg6 is about 12 taller than a 6lq6 so you first need to see if you have room for a conversion. Im thinking of getting a 1970s fender musicmaster bass amp small 12 watt amp and im finding some are listed as using 6aq5a power tubes and some use 6v6 tubes.
Get a late tube era data book antique electronic supply has them for year 1974 and study it. Atarashi designed this amplifier for the multichannel sacd application with just fourchannels instead of the normal five. I am working on posting the rca hb3 tube handbook on line on this. Except for heater ratings, the 5aq5 is identical to the 6aq5. The 6aq5a tube is identical to the 6669 and 6hg5 tubes and similar to the 6aq5 and el90 tubes. The howler monkey push pull 6aq5 guitar amp c 2012, g. I was looking at a schematic on schematic heaven and it only shows 1 6aq5, 1 6x4, and 2 12ax7s. Recently, i recalled the one tube transmitter that first got me on the air as a novice hack in 1957. Buy riverstone audio matched pair 2 tubes 6n6p 66 vintage nos russian vacuum tubes nevz novosibirsk, russia amplitrex tested and matched, platinum grade nos 6n6p 2 tubes. My first 6aq5 oscillator was quite a peanut whistle. General terms and conditions unless otherwise specified above, the following apply. One 1 new in original box westinghouse 6aq5a beam power audio output tube valve. According to the data sheets, a single 6146b operating in class ab2 i. Vintage tube type linear repair and buildit parts from kens.
Vacuum tube 6aq5a 6hg5, tetrode, beam power antique. Tube 6aq5a or rohre 6aq5a id4581, beam power tube, miniatur7pinbase b7g. You can answer your question by looking up the tube data sheets for that tube norris. All products, 10 100th 106 amplifier 10m 10y 117lm7gt 117n7gt 12 pins 12a6gt 12a7 12a8 12ab5 12ae10 12aq5. I protoed the champ model 5c1 with the 6sj7 and 6v6 design. Tube 6aq5 or rohre 6aq5 id2118, beam power tube, miniatur7pinbase b7g, usa 1940 and poweroutput shown. Within its maximum ratings, the performance of the 6aq5 is equivalent to that of larger types 6v6 and 6v6gt. Vacuum tubes new old stock nos antique electronic supply. Pdf 66696aq5a 6aq5a 6aq5 tube 6aq5 tube typical circuit 6aq5 e7 bulb tube 6aq5. Description the 6p1pev61 longlife output beam tetrode is designed for amplification of lowfrequency power. Riverstone audio testedmatched pair 2 tubes 7pin ge jan 5654w jj 12ax7 ecc83 preamp vacuum tubes three pack. Within its maximum ratings, the performance of the 6aq5 is equivalent to that of the.
I just took a quick look at tdsl3 and saw the similarities. I am working on scanning and placing on this page the entire rca hb3 tube manual. Its a 7pin beam pentode which is said to have similar characteristics to a 6v6 but with lower. Using a 7pin socket, a 9pin socket saver, some old ge tube data sheets and my cheapo radio shack soldering iron, i concocted the adapter shown below. To prevent damage to equipment, it would be wise to double check with a good tube manual before actually doing a substitution. Pair ge jan jlrv 6005 6aq5w black plate tubes fender bass gibson ga5 test nos. Herein you will find a collection of vintage engineering texts, vacuum tube datasheets, and other obsolete information, presented free of charge and without annoying advertisements. 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. The 6p1pev is a sovietmade miniature 9pin beam tetrode vacuum tube with ratings similar to the 6aq5, el90 and the 6v6. Wonder how the 6aq5 would hold up at a higher voltage with the same higher impedance. Rca 6aq5 tubes two of these tubes were installed in relatively small power fender bass amp, and they made the old amp really come to life. Rare jackson 658 tube tester manual and special data book. It was commonly used as an output audio amplifier in tube tvs and radios. Here are the specs of the kw atlanta transceiver using 2 6lq6s ssb.
Then i got bold and checked the 6v6 and 6aq5 data sheets. Nos tube specification sheet nos tube specification sheet. The 6me6 vacuum tube is a novar type used as a horizontaldeflection amplifier in color and bw tv receivers. A homebrew transmitter from the 1960s, updated for todays am a 6dq5 sweep tube modulated by four 1625s december 22, 2006, bob hansen, na7rh here is my opportunity to tell about adventures with the homebrew 6dq5 transmitter and companion 1625. Buy riverstone audio testedmatched pair 2 tubes 7pin ge jan 5654w fullytested vacuum tubes upgrade for 6ak5 6j1 6j1p ef95 ge 5654w platinum grade pair. These are some of the finest british el90 6aq5a tubes ever made. It ran 15 watts input power, with output of about six watts. The 6aq5 is a miniature 7pin b7g audio power output beam tetrode vacuum tube with ratings virtually identical to the 6v6 at 250 v. In some 5 tube units it is possible to rewire the heater pins in series across 120vac instead of parallel across 6.
We promise to never spam you, and just use your email address to identify you as a valid customer. 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, however, it will work in the same circuit with component values unchanged. Tubes in the tube column are directly replaceable with tubes in the replacement column. 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. It is the amp that i designed after my popular squirrel monkey one tube amp. A premium beam power pentode well suited for high end audio and musical instrument amplifiers and can be safely used to replace any 6aq5a tube in all amplifiers. With almost datasheets and the visitor counter indicates over 4000. Test results clearly marked on the tube boxes with data labels for ip, gm and tube gain are attached to the individual tube boxes. Miniature type used primarily as output amplifier in automobile receivers and in ac operated receivers. The 6aq5 6aq5a vacuum tube is a miniature type used as an output amplifier primarily in automobile receivers and in acoperated receivers. I did a quick calculation using 250v50v 200v and 45ma as speced for both tubes and came up with 9w with both tubes having a 12w rating. The 6c10 is a threesection 12ax7, and the 6d10 is a threesection 12at7. In the table below is a list of all the generally useful 6v and 12v filament compactron tubes that i know about. In electronics, a vacuum tube, electron tube in north america, tube, or thermionic valve or valve in british english is a device controlling electric current through a vacuum in a sealed container.
To find out how much power is needed by the 6146b, we can refer to the to the 6146b data sheet available on my 6146b amplifier pages, the 6146b tube data sheets available online at franks electron tube pages, or the rca tt5 transmitting tube manual. Wingoneer 2pcs 7pin 5654w vacuum tubes upgrade for 6ak5 6j1 6j1p ef95. It may also be used as a triodeconnected vertical deflection amplifier in television receivers. The 6p1pev output pentodes are miniature devices enclosed in glass bulb and are provided with a ninepin base and an indirectly heated oxidecoated cathode. Amplifiers free delivery possible on eligible purchases. Vacuum tube 6aq5a 6hg5, tetrode, beam power miniature beampower pentode designed for use in the audiofrequency power output stage of television and radio receivers. When using a vacuum tube rectifier in a transmitter with widely varying load currents, a choke input filter with proper rating choke will be the superior system. This is a suitable replacement for any 6aq5a 6hg5 6005 el90 tube type. This amplifier was originally featured on the january 2004 issue of the highfidelity audio. In addition to the data i have scanned and posted, if youre looking for data on a particular tube you should visit tsdl on duncanamps website, or franks tube data.