tubes

  1. markdminer

    EVH 5150 III 50 w Stealth Preamp tubes

    Experimenting with different pre tubes. Have used Electro Harmonix 7025 and just ordered JJ EC803 High Performance. Recommend placement valves 1-4? Looking for something to push the Blue Channel (I prefer not to use overdrive) and to tame the compressed vibe of the Red channel. Thanks!
  2. TedEH

    Bass tone vs. Solid State

    I dunno if this is really a question so much as a train of thought, but I feel like I'm pretty regularly coming back to my bass tone and looking for some kind of missing "mojo". I found what I really like from my guitar stuff, but bass has remained elusive. And my theory right now is that my...
  3. Emperoff

    NRPD: Long live 90's rack tube preamps!!!

    Some of you may remember this thread: https://www.sevenstring.org/threads/brpd-most-bizarre-tube-preamp-ever-o.345905/ I promised a part 2 of it, and here it is. This one is also quite special because I only knew about its existence from a german magazine from 1991. Not even a color picture of...
  4. Adversor

    FT Vox MV50 High Gain Mini Amp Head

    Looking mainly for a tube or tube sounding power amp. A Mosvalve would be great but I am open to options. A Mooer Tube Engine is the one I am after and I can add dough to even things out. Offer up. Brief & Accurate Description of gear/guitar: Vox MV50 Amp Accessories (hardshell case etc)...
  5. neurosis

    Troubleshooting my Laney Ironheart Studio

    I have a problem with my Laney and want to see what you guys think. I have had amps serviced before but always thought I should learn and try to do it myself eventually. I think that time has come. I have no experience fixing tube amps but have been reading on it and feel confident attempting...
  6. Guitarjon

    Old tubes vs new tubes! (Mesa vs JJ Dual Rectifier comparison)

    I changed the tubes in my Dual Rectifier from the stock Mesa's to new JJ's (all the tubes except for the Rectifier tubes). I thought this would be a good opportunity to make a sound comparison. Would there be a big difference or wouldn't I hear a difference at all? I'd never changed the tubes in...
  7. Belensky

    JJ KT77 vs Genalex KT77 Tube Shootout

    Amp settings, and recording chain exactly the same, both sets set to 65mA per pair. I don't know about you guys, but I had already two sets of JJ KT77, that dying in my Diezel Herbert, first set (that eventually I got replaced under warranty) started to make troubles after 6 mouths: one of...
  8. KnightBrolaire

    I'm thinking about re-biasing my Revv for KT88s

    the problem is, I don't know which brand of tubes to buy. Oh also I've never re-biased an amp before, but from what I've read it shouldn't be bad (so long as I don't electrocute myself), plus the amp has external bias points, so that should make it relatively easy to do... The manual for the...
  9. Discoqueen

    Tube Troubles

    Hey y’all The amp in question is an Orange th30. I was playing earlier with my drummer and my amp sounded absolutely awful. I read up and it seems that perhaps a preamp tube is the culprit. I read that you have to replace 12ax7s in matching pears, so does that mean I should replace all the...
  10. mguilherme87

    EVH 5150iii 50w 6l6 (V.2)

    Whats up friends? So, I've been the proud owner of the original (V.1) EVH 5150iii 50w 6L6 head and matching cab. It's done me very well for the past few years, but as we all know, there's the volume jump issue between the green and blue channels. I was hoping to buy the EL34 version with the...
  11. S

    FS Kiesel 6 String lithium Pickup set and Tubes

    I have a lightly used set of Kiesel Lithiums that came out of my 6 string. It comes with pots and 5 position switch. Wiring is mostly intact, just need to solder in pickup wires. Asking $120 Shipped OBO I have a set of Ruby 6l6 power tubes and then 4 ruby 12AX7A's and a single EH 12AX7. They...
  12. jarnozz

    Superlead preamp build

    Hi there! I haven't been active on this forum for a while now. As far as I remember, there were some people interested in building amplifiers and electronics in general. I am an electrical engineer and work with digital electronics, embedded design and digital signal processing. A hobby of...
  13. Danklin

    Best Tube Replacement for Crate BV120H

    Hey guys Still kinda new, already did search (for the trolls that always say Dude do a search) and didn't really find an answer. Got the lastest Blue Voodoo Amp(the black one) and it's time to change tubes. They have the original groove tubes in them. Now most people talk trash about this...
  14. Chewy5150

    Peavey 5150 Block Letter Tube Change... Does it need biasing?

    Hey guys, I just got a 5150 block letter for stupid cheap but unfortunately I think its in need of at the least a power tube change. Right now it looks to have Sovek 6L6's and I'd like to stick with the same brand of tubes or maybe just get a some JJ's but regardless do I need to have it...
  15. Gmork

    Lookin for a 12ax7 preamp tube good for PUNCHY "brutal" high gain

    im getting a rack preamp that uses a single 12ax7 and am not too familiar with tubes. are there any 12ax7 tubes that might be best for REALLY PUNCHY/THUMPY thick "brutal" metal highgain? would really appreciate some input on this (please explain as if youre talking to a child and not a...
  16. D

    How to retube a laney irt60 head?

    Hi! I know this is a noob question, but I'm a little scared on doing this, i have read one can get an electric shock, so i want to be sure on how the retubing should be done on a laney irt60 head. The manual isnt specific and I havent found anything convincing on the internet. I have a tube kit...
  17. schecter58

    Blackstar amps

    Just wondering how many fellow forum members here playing blackstar amps? If so what do your setups look like? What pedals/effects are you using? I am running an HT-20 with Mesa Boogie tubes. I have it boosted with a tube screamer and have a few other pedals as well which I recently integrated...
  18. D

    Changing tubes on Laney IRT60

    So I just bought a kit of tubes for my laney irt60. This is my first tube amp and I want to experiment on how different tubes sound and how tone changes but the problem is I dont know how to do it correctly. I have searched the internet for a guide but can't find anything that can help me out...
  19. W

    Best tube setup for my Peavey Valve King

    Hey all, So my Valve King is in serious need of being retubed.. I had some Slovakian Gold Series Groove Tubes in there for a while, and they ripped! but unfortunately with my experience with Groove Tubes, they tend to blow quickly when you are gigging and stressing them constantly. (The...
  20. Chewy5150

    Mesa Dual Rectifier 3 Channel Head w/New Tubes, Footswitch

    Brief & Accurate Description of gear/guitar: Mesa Dual Rectifier 3 Channel Head This amp was my main rig for the past few years until recently since I've found something I can use at home as well as live. Everyone knows the tones of the Dual Rec although I recently retubed it (more on that...


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