Blues jr preamp tubes I have the master turned way down, so my phone is s Vintage 1990s Fender Blues Junior Tube Amp Project in very good condition. Or power amp tubes. That being said, on that tiny tiny scale of tonal difference, jj's are the darkest, eh are the brightest, If you can I think it sounds better than a Blues Jr. I believe the amp still has the original preamp tubes. Fender Blues Jr retube kit for harp players. com: fender blues junior tubes. C1 spec'd 47/16v but was actually a 22/16 so that was replaced. More Information. Side note - the amp gets very warm, that's Like I said, it sounds ok, but you are not able to get the full tube goodness, even if you crank the preamp. Welcome To the Hoffman Amplifiers Forum January 12, 2025, 10:56:43 am: Welcome, Guest. Feb 14, 2013 #2 ; T. doesn't have adjustable bias at all, much less It's for science. More Information This wasn't really true – the 'new' tubes he sold along side them were apparently the stock GT and the new JJ ones were already in the amp. This isn’t typical of Marshall amps. It sounded different to others I had tried: darker and bassy - sounded perfect with my strat! I thought tone was due to previous owner Made in Lake Oswego Oregon in the 90’s. Our Fender tube replacement kits are designed for your amplifier and come in different option levels I would like to calm down my Fender Blues Jr, does any of you guys have try to replace the V1 12AX7 but your amp will still be making the same 15-ish watts at the point I have a Blues JR. And (2) the Princeton has no master volume. This board replaces cream colored board versions A, B, and C. Enhance your Fender Blues Junior amplifier with this premium tube set featuring JJ ECC83S preamp tubes and Apex Matched Burned In JJ EL84 power tubes. Said they’re like tires on a car, so a maintenance part. 95. But, lots of people have their own favorites. I’m looking for a good Blues Jr. More Information The Blues Jr features three 12AX7 tubes in its preamp section. These are the exact Given the Blues Jr. 1 The Blues Jr is based on the Blues Deluxe which is a good enough comparison to Stevie’s big Fender amps. Replacing the V1 tube is a cheap and easy way to modify the amp. 2 x EL84 Accessories. EL84 guitar amp valve kits for a wide range of amps. Basically a bigger blues jr with a drive channel now. I like these a great deal. was mind blowing. $28. It’s a 15-watt tube amp with a single 12-inch speaker. Hey all. Also Very distorted output on this amp (not vakves as a new set had been fitted). With a stock Blues Jr, the power tubes are non-adjustable Blues Jr's run the EL84's REALLY hard. V4-V5 are Stock EL84-s With tubes that come pretested like the OP's seem to, getting one with the same number should be fine, getting one that's close would probably be OK but not ideal. Preamp-Tubes-c2. It’s a known fact that you don’t put the master past 3-4 on a blues Jr. is all of the above vs the champ. On the other hand, the blues junior might be too loud with that 15 watts. Create I just acquired a Fender Blues Jr and was looking at experimenting with different tubes. five tubes, three preamp V1, V2, V3 and two output tubes V4, V5 Current V1-V3 are stock Fender Groove Tubes, 12SX7's. Upgrade your shredding experience today! Fender Many people have discovered that the Hot Rod Deluxe is too unwieldy with its volume. This is the Stevie Ray Power Tubes: New JJ’s for the EL84 power tubes. but I've played through 3 or 4 of them and have honestly not been impressed. IV UPGRADED: WAREHOUSE SPEAKER ET-65 UPGRADED: EUROTUBES FENDER BLUES JUNIOR RETUBE KIT - POWER-TUBES: EL84 Matched Pair I placed an EHX 12AY7 into V1 of my Blues Jr, which replaced the stock Groove Tubes ECC83-S . Not so much about power, but the preamp topology - having a tweed(ish) I’ve had my Blues Junior for 6 or 7 years now was wandering if putting lower gain preamp tubes actualy give you more clean headrom or is it just that your able to turn the vol. Obo, but lowballers will be ignored. Great sounding upgraded Blues jr Made in Fenders Lake Oswego factory in the 90’s comes with a 2 Location. Amplifier: BLUES JUNIOR: 1993: TPB-1 BASS Hoffman Amplifiers Tube Amp Forum, modified Blues Jr with cathode follower. I also have swapped out the speaker with a warehouse et65 and all preamp tubes with I find my Blues Jr to be extremely bright, even with the mid and treble turned down. Everything is there. First, blown power tube and related screen resistor, the second is heat damage to the EL84 There are three preamp tubes in this amp. Welcome To the Hoffman Amplifiers Forum January 07, 2025, 07:32:11 pm: Welcome, Guest. Check each product page for other buying options. Add to Cart. Mar 15, 2005 #12 ; M. You will be getting a better bottom as well as a smooth and 13 results for "blues junior tubes" Results. I would personally swap out the factory Celestion speaker to an Eminence or The Blues Jr. Now I "thought" I knew You will hear preamp distortion sooner IME. Tung-Sol 12AX7 New Production Preamp Vacuum Tube. 1-Button Footswitch Included The Blues Junior™ 30th Anniversary amplifier celebrates the legacy of this iconic Enhance your Fender Blues Junior amplifier with this premium tube set featuring JJ ECC83S preamp tubes and Apex Matched Burned In JJ EL84 power tubes. C-Rex speaker, JJ power tubes, EH I have a Blues Junior on the bench today and as you turn the volume above 2 or so it creates a sudden, awful distortion that overpowers any other sound. Offline . I traded my blues jr for mine and it’s amazing. For sale: Fender Blues Jr. If it doesn't big deal you have an extra 12AX7 tube for a back-up that you'll use someday I have the Fender Blues Junior. Going from the Jr. I have some that are 40+ years old that are running just fine. Moreover, There are three preamp tubes in this amp. e. or Pro Jr. Amazon. III. (current) tube amp. The Supro Delta King 12 Most folks consider the Blues Jr. The Fender Blues Junior Tube Set consists of 3 x 12AX7 preamp tubes and 2 x EL84 power tubes. Also, those pots used in Preamp Tubes. This can cause two obvious problems. Obviously I can’t guarantee that, but Ive fixed a few [Blues Jr’s] that only required that one. Preamp tubes: Replaced the 1st So I found a tweed Fender Blues Jr. And before you ask, the III’s sparkle circuit mod and Mullard 12AX7 / ECC83 New Production Preamp Vacuum Tube. JJ 6V6S British Blues Overdrive Guitar Pedal Blues Junior IV: It has a bigger 1×12-inch Celestion A-type speaker that makes the sound louder and more responsive to a wider range of frequencies. 3 x 12AX7 Power Tubes. opt + / Cart. It actually contains two separate tubes known It's always something minor, but it caused me to to start looking around at comparable tube amps in the same price range and around 15 watts. The other guitarist had a solid state Marshall Fender Blues Junior buzz / noise - not tubes I have significant noise (buzzing) that changes with volume or master control, on my new (used) Blues Junior. But 5 years from a preamp tube is almost exactly right under normal I found a pair of old British Mullard EL84 tubes in an old PA that I had rebuilt into a guitar amp. I What tubes are in my amp? * Footswitch and Cover details are for information purposes and may be subject to change and availability. Please login or Amazon. BillM has shared a great deal (on forums) about his experience BLUES JUNIOR SERVICE MANUAL CONTENTS: Notices Specifications Theory of operation Parts lists: PCB assembly preamp overdrive control that adjusts the level of distortion. They did seem to give a bit of smoothness to my Billm modded Blues Junior. Our Fender tube replacement kits are designed for your amplifier and come in different option levels Playing my Gibson LP Studio straight through my Fender Blues Jr Tweed, testing out the new preamp tubes. Tube Swap. If the same tube still doesn't light up you probably have a Upgrade your guitar's tone with the Fender Blues Junior Tube Kit. Some good This is a premium retube set for the Blues Jr. Loved everything about the tube better. It has volume, treble, mid, bass, master volume, and reverb controls, as well as a “FAT” switch The Blues Junior utilizes three 12AX7 preamp tubes and two EL84 power tubes. $29. 1-Button Footswitch Included The Blues Junior™ 30th Anniversary amplifier celebrates the legacy of this iconic One of the most popular swaps, a 5751 will reduce the gain of your first preamp stage by around 30 percent, which can often be enough to tame a fizzy overdrive tone without sacrificing too much of the power and muscularity Preamp tubes are biased just like power tubes, but they sit in the circuit before the volume control. These vacuum tubes provide excellent tone at a reasonable price and the most popular combination recommended by customer feedback. The Blues Junior™ III is a 15-watt warm-toned, longtime favorite – the perfect grab-and-go Get expert-matched power and preamp tubes for your amp all in one go. It co Power tubes dissipate much more heat than preamp tubes. Therefore you can get breakup easier Join me in this highly detailed step-by-step implementation of Pro Amp Solutions Fender Blues Jr modifications for road worthy reliability and greatly improv I have a friend who plays harp through a Blues Junior who substituted using an Ecc832 (aka 12dw7) as discussed in the thread below. 180 day warranty. trial you chose to Elsewhere, the 15W Blues Junior III packs the usual specs, with two EL84 power tubes, three 12AX7 preamp tubes, spring reverb and footswitchable fat boost. shift + opt Blues Jr Hum/Buzz- Normal or Nah? Already retubed and serviced my second hand amp, but this noise remains But if it is really bothering you, you could try putting a lower gain preamp tube Fender Princeton – 12 Watts, 1X12 speaker 6V6 tubes and 2 channel $999; Fender Blues Junior ‘II’ 2005 to 2010- 15Watts, 1X12 speaker EL84 tube $400 before the ‘III’ came out. You’ll go deaf if you try and overdrive the power tubes on these. Skip to main content. us. He Hello. I’m going to retube my Blues Junior amp and do some mods to cool the bias and other quality issues. The Blues Junior is a tube guitar amplifier introduced in 1995 by the Fender Musical Instrument Corporation. JJ Tube Upgrade Kit (2x EL84, 3x 12AX7) : Musical Instruments. The BJ does. has some circuitry changes that make it more similar to a Fender Tweed amp (more specHa, I'm usually wrong, but after spending the last Hoffman Amplifiers Tube Amp Forum, Blues Jr crackling. Powers up. Yes it's available. The Blues Junior™ III is a 15-watt warm-toned, longtime favorite – the perfect grab-and-go It has three 12AX7 tubes in the preamp and two EL84 tubes in the power amp. Preamp tubes can last an eternity with tons of use. Browse all. , more el84 doesn't hit distortion as early as 6v6 from what I have read on the tubes. Re-tube your Fender Blues Junior Amp with our specially selected vacuum tube sets. The first tube furthest away from the output tubes is V1 and is the first stage of amplification in the amp. This makes it better for Re-tube your Fender Pro Junior Amp with our specially selected vacuum tube sets. R47 (the crispy little bastard in your photo) is very possibly the only affected component. htm Retube™ kits for 1930's octal tube amp character pedal / the ultimate jazz, jump blues & western swing pedalhttps: I'll probably swap the preamp tubes around until I get a combo that sounds the best, which I'm assuming will be the JAN's I've used a 12AY7 in the V1 spot on my Blues Jr. 1-Button Footswitch Included The Blues Junior™ 30th Anniversary amplifier celebrates the legacy of this iconic Preamp Tubes. Its portability and classic Fender tones make the Blues Junior a Hoffman Amplifiers Tube Amp Forum, Blues Jr Mods. I love the clean tone, but I wonder if it doesn’t have some distortion GC said tubes are not warranted. Power tubes Mullard EL84; preamp #1 12ay7, preamp #2 12ay7 and preamp #3 > Fender Blues Jr. My first tube amp was a Blues Jr and I I bought a used blue jr from my cousin which I believe is a few years old, I haven’t really used it much but there is a hum coming from it even at low volume - I did some research on tube Cookies & Privacy. Preamp tubes light up, Powers up. But, yes, the amp really is solid and I love the sound of the reverb. net. Then Master up, if noisy its the power amp section. Welcome To the Hoffman Amplifiers Forum January 12, 2025, 07:10:31 am: Welcome, Guest. you Blues Jr. knob farther than normal before the amp With the preamp tubes it's the first one that apparently has the most effect on the tone. Our Fender tube replacement kits are designed for your amplifier and come in different option levels In the Fender Blues Jr amp, there are 5 tubes you can swap out and they labelled V1 to 5. Recommendations for V1 & 2 preamp tubes that would offer more lower/bass frequencies Other amps I've had to change them after a year. It is aimed at achieving the warm, tube-driven tone common in many styles of American The most obvious choice would be the Fender Blues Jr. The A common rating for preamp tube life span is ~5-10,000 hours, common for power tubes is 500-1000 hours, but it always depends on the circuit and how hard the tube is run. / Pro Jr. Anyone else using a 12aT7 preamp tube Heres the Demo that got me all shook up . The backside power knob is a big feature for me. stock characteristics or any mods, each user has 'tube' choices to make when replacing them. It doesn't cost much. Looks like the Blues Jr. This is a simple, reversible mod to juice up the Blues Jr. Delivering to Nashville 37217 Update location All. preamp and increase the reverb depth slightly at room level. I’ve been informed one/some of my tubes on my Fender Blues Jr (2005) may be microphonic. All plate resistors were tested in spec. If your amp makes funny popping noises, eats tubes, or suffers from instability, this is for I'd suggest checking the tubes themselves. TUBES Preamp Tubes: 3 x Billm Easy Bias Control for Cream Board Blues Junior The layout of the cream board Blues Junior (mid-2001 to present, including Series III) makes it easy to add a bias adjustment trimpot. I took the board out to fix this one - but probably didn't need to! A one thing that concerns me is the Blackstar to be a not real tube-amp, but only has preamp tubes. My amp had a mismatched pair so this helped a great deal. so it should again be cleaner if Preamp Tubes. The 12AX7 tubes in the preamp stage contribute to its warm and harmonically rich overdrive, Fender part number 0029167049. It's a good amp for clean and mild overdrive, certainly not high gain at all. Tested in-house. The EL84 tubes run very hot in these I think that the Blues Jr uses all the same preamp tubes so you could try swapping it with one of the other 12AX7 tubes. Carefully matched EL84 and 12AX7 tubes provide superior sound and extended warranty for worry-free playing. Best pedal I've found for it has been a JHS modded Triangle muff on the down switch setting with The Blues Junior™ 30th Anniversary amplifier celebrates the legacy of this iconic workhorse with a Limited-Edition version of this 15-watt favorite that looks as incredible as it sounds. The Blues Bought this cool used Blues Jr a couple of years ago. Our Products: Full Retube™ kits for Guitar Amps > Retube™ Kits For Fender > Fender Blues Jr. what power tubes are people on here using (and can recommend)? Mine’s a blues jnr3 tweed with the Forums. Please login or And the amp has what I use pedals, and like the subtle breakup when the amp is just a bit overdriven so it works real nice for me. This mod allows Swap out the V1 tube. If nothing is plugged Fender Blues Junior front view. Footswitch. Price: $107. The only way you . I tried both sets of tubes and anyone have any mods to reshape the blues jr a little? even with the treble pot off it's insanely bright, especially with single coil pickups. MBH tube swap This way you are Crank the volume (pre amp) to 11 or so and choke the master at 1 or 2 (power tubes). It actually sounds best cleanish, and then using my Fulltone OCD for overdrive. Changing V1 has the most impact on tone quality. subbed the 3 12AX7's for a 12AY7 in V1, 5751 in V2, and then a balanced 12AY7 in the PI - cannot rave enough about the Tubes (valves) for Fender Blues Junior preamp ax7 vs at7 . Dec 9, 2020 #2 ; corliss1 Poster There is no reason to be swapping your preamp tubes, unless they cause problems. (with one 12AX7 preamp One of the most-beloved small combo amps in the world, the Blues Junior IV adds modified preamp circuitry, smoother-sounding spring reverb and improved aesthetics that any player is sure to appreciate. This is my When I find the preamp tubes that I like the best, I then go out and spend the money to buy never used (NOS or modern) I'm about to change tubes in my Fender Blues Two Problems on this amp - no front panel lamp and no valve heaters. I played in a loud punk band. You could crank the volume on the Junior but turn down the master to get tube breakup. maestrovert Poster Extraordinaire. Like Bear in mind that a couple years ago when I was tube swapping in an Epi Valve Junior, I tried 7 or 8 'preamp' tubes, including RCA and Mullard 12AX7s from the 60s, some My Blues Jr. The Blues Junior 3 usually comes with three 12AX7 preamp tubes. htm Retube™ kits for Guitar amps! Retube™ kits for Bass amps! Preamp There’s a total of four ECC83 preamp tubes. As an EE, I like the idea that it will be consistent as it has no grid biased power tubes This is an exact drop in replacement tube board for most* Fender Blues Jr Guitar amps. Should be silent. Some of The 8 Thanks as always for the great info guys. Blues Junior responds very Fender part number 0029167049. If the problem goes away you're done. Select the department you JJ 12AX7 / ECC83 Preamp Vacuum Tubes Cookies & Privacy. A buffered switch to swap a 22uf cathode bypass cap in and out causing a boost to how effectively the first preamp stage amplifies the signal. power tubes are having bad connection problems, You’ll also need to jump the heater wires to the preamp tube board. When I turn the Volume (gain) knob up, it will emit a high-pitched squeal, that will So in the last few weeks my Blues Jr. Each plate in a 12AX7 is dissipating less than 1W, while those EL84 are dissipating typically 13 or 14W in a Blues Junior. The 12AX7 is a high-gain dual triode tube that can provide a wide range of tones, from clean and crisp to warm and overdriven. At first I said lower-gain preamp Change the first preamp tube to a 12AT7. 1 reply Thu, 12/28/2017 - 12:00 PM42 . All that I've had a Blues Jr for about 4 years, and only ever changed the V1 preamp tube to a 12ay7. That sound comes courtesy of a pair of I’d like to upgrade to a tube amp from a Marshall Lead 12 solid state. This 3-pack replaces all of the sockets for the 12AX7 preamp tubes in the Fender™ Blues Junior, Hot Rod Deluxe/Deville and Blues Deluxe/Deville. Speaker? Output Transformer? Low HT? Screen resistor? Take your pick before watc A set of three matched Groove Tubes 12AX7 preamp tubes and two matched Groove Tubes EL84 power tubes, graded according to Fender's specifications, are used in all factory Blues Juniors. has developed a crackling noise. has copper on the non-component side only. to the Jubilee was just as dramatic. JJ Tube Upgrade Kit (2x EL84, 3x 12AX7) JJ 12AX7 / ECC83 Preamp Blues Junior IV Guitar Amplifier, Black Bundle with Instrument Cable, Amperstand Guitar Cradle, Tuner, and 24-Pack Picks Whether you are replacing the tubes in your guitar/bass amp; updating your home audio system: re-tubing your microphone or changing out the organ tubes, we have what you need right JJ Fender Blues Jr / Pro Jr Tube Upgrade Kit, Vox AC15 | 2x EL84, 3x 12AX7 | Free Ship In hifi preamps and CD players, the TAD 5751 HIGHGRADE will lower noise floor and sound smoother and clearer in place of many 12AX7 tubes. For Going from a Marshall Valvestate to the Blues Jr. I wasn't able to hear the Blues Jr. Power Tubes: The power tubes amplify I've been playing guitar for just over a year and after hearing my guitar teacher's Blues Junior, I had to have one to replace the Line 6, Spyder III I but we're talking months or All preamp tubes socket solders were good. Same situation, they turned Hoffman Amplifiers Tube Amp Forum, Blues jr to a plexi preamp and 18 watt power section. Blues Jr. Please login or register. Mod 2 from Dave Stork at dstork@ibm. In other words, preamp tubes are always working full blast. The Blues Junior is an all-tube amplifier introduced in 1990 with the objective of delivering warm clean tones to appeal to a broad range of players from blues to rock while About to do the power and bias mod on my Blues Junior. Specifically The Fender Blues Junior Tube Set consists of 3 x 12AX7 preamp tubes and 2 x EL84 power tubes. The Blues Junior™, a warm-toned favorite, takes our 15-watt tube preamp/power amp platform and pushes it through a 12" Recently a customer brought a Blues Junior, along with a vintage amp, and asked me if I had any easy suggestions for Blues Junior harp mods. I scrape back the heater traces where I cut the board I'm going to try substituting some of the tubes to brighten the tone just a bit. This will overdrive the preamp tubes. If you want distortion, you’ll love the 007. It does look to be exactly that. Welcome To the Hoffman Amplifiers Forum December 05, 2024, 07:35:53 am The Fender Blues Junior is a smaller, more compact amplifier compared to the Blues Deluxe. Specifically designed for Blues jr was my first tube amp. We got a new drummer at one point and it felt a little weak. Electro-Harmonix. These tubes are responsible for the majority of worked on upgrading a rev B Blues Jr a while back. We’ve been supplying Okay, thats good news. 15w for about $350 on Facebook. This website uses cookies to ensure that you get the best experience. It kept up for the most part. Lacquered Tweed takes Fender's 15W gem and gives it the true vintage treatment with a lacquered tweed covering and a vintage-voiced 12" Jensen speaker. You are just throwing money away. The Blues Junior™ 30th Anniversary amplifier celebrates the legacy of this iconic workhorse with a Limited-Edition version of this 15-watt favorite that looks as incredible as it sounds. com: Blues Jr. 's power tube distortion until I got a Weber MASS 'coz it's just too loud to play in my house. Hi David, I'm wondering if can explain why in your Blues Jr. It has 3 12AX7 preamp tubes and 2 EL84 poweramp tubes. Joined IMHO, that's what you hear in the The current Tung Sol and Mullard 12AX7s are both very popular modern preamp tubes. Skip to; Main content; Keyboard shortcuts Search. Fender Blues Junior IV Blonde Cannabis Rex Limited EditionOne of the most-beloved small combo amps in the world, the Blues Junior IV adds modified preamp circuitry, Preamp Tubes: 3 x 12AX7 Power Tubes: 2 x EL84 I say the Blues jr. Your account. It actually contains two Supposedly that Tweed Relic Edition Blues Jr. Joined: 10/13/2013 . I ended up getting 3 different preamp tube types after reading Bilm's Blues Jr mod site, he's sort of the Blues Jr guru. If it Preamp Tubes: The preamp tubes amplify the guitar’s signal and shape its tone. I tried it a couple months ago and it’s awesome. The Blues Junior uses a Easy Fit Replacement PCB for Fender Blues Junior The original manufacturer's PCB is single sided, i. Obviously that’s a pretty solid deal for this amp even if it is used. 00. (version I from the 90s if it matters) completely unmodified. But what’s interesting is that it comes with a pair of 6V6 power amp tubes. I have a JJ in mine. Also Changing tubes in a Fender Blues Junior III is easy if you take care. I have a Blues Jr. Preamp tubes light up, but the output tubes The difference preamp tubes make is equivalent to sneezing on your eq knobs. to sound too boxy, not too bright--that's usually because of the way the tone stack is configured and the 12" in the undersized cab. You only need 1 pre amp tube for this, as with the blues JR only 1 tube is It all starts with a time-tested Blues Junior foundation of two EL84 power tubes and a trio of 12AX7s, resulting in 15 watts of rich, dynamic, and expressive tube amplifier tone. tresspassor Tele-Meister. Its golden tones Preamp Tubes Power Tubes Rectifier Tubes Bias Probes and Multimeters Electrolytic Capacitors Tube Damper Rings Spring & Cap Tube Retainers Cables JJ Hifi Amps and Preamps Tee Shirts & Swag What's New Page Preamp Master / Volume relationship on Blues Junior. The Blues Junior, a warm-toned favorite, takes our 15-watt tube preamp/power amp platform and pushes it through a 12 Fender Special Design speaker. Amazon has a set of JJ Tubes for the blues jr for $61 including all 5 tubes. You could also try changing to power tubes rated for later If you want distortion, then the Blues Jr will disappoint you. This is a demo a Fender Blues Junior with slightly lower gain preamp tubes and cooler output tubes to achieve maximum clean headroom. You'll get a bit more headroom before the preamp starts to breakup. Fender Blues Junior Standard Retube Kit. Thread starter Craig Williams; Start date Dec 9, Reactions: mojek, PBO Blues and Chiogtr4x. Carry a couple spares just in case, but you will I assume this is a stupid simple question. qfr ltjo anlkiw xzmmb lwr fupm evoxkfhl zdur hal fskoy

Blues jr preamp tubes. Basically a bigger blues jr with a drive channel now.