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Terrell

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About Terrell

  • Birthday 02/07/1968

Converted

  • homepage
    www.myspace.com/terrellcoble
  • occupation
    Consultant
  • hobbies
    Guitars, guitar, what else is there?
  • Location
    Austin, TX
  1. I love this thing! What craftsmanship!!! I don't know that I'd play it, but I sure admire what he's done.
  2. Those replies REALLY shed light on things for me... 12AY7/5751 IT IS... Thanks! Curiosity takes over here: I don't understand the "why" on "it will run hot" with the higher rated tube. Is that because of the cheaper components around it? If I were to upgrade components to accommodate a cleaner power tube, where wold I start? There's a guy that makes full point to point drop in boards with better components for the VJr, would that get me a higher rated tube? Or, are higher rated tubes, just hotter? Or, is it the power supply transformer? The final most important question: I read from this one mod guy, (the one that makes the p2p wiring drop ins), that upgrading the Output Transformer, really clears up the low end. Does this jive with your experience?
  3. You do not need a microphone grade tube in these amps ... it will do nothing other than cost more. Try a 12AY7 or 5751 in V1 Thanks!
  4. So, I've been looking around and now I even have more stupid questions! Like: For what I'm looking for, should I replace 12AX7 with something like a 6201 or 6072? And is the higher number that GT gives them mean more power to clip or clip to power? Sincerely, Clueless
  5. Today's production tubes are down at least 20% or more on gain from spec on average. The gain on each run of each type of each tube from each maker varies widely from tube to tube even in the same batch. So ... the only way to do what you want is to hand pick and hand test and hand trace and hand spec at least 50 tubes to try to find a handful of good ones. This is what I do for all my blueprinting clients ... if you ever see a copy of the paperwork that was done on a particular amp each tube is documented for plate current, gain, transconductance, plate resistance and other factors so it is known what the tube is actually doing and we can replicate things when retubing the amp ... or go up, down, left or right or whatever. You cannot know where you can go if you don't know where you are in the first place. If you want a proper gain / spec tube in V1 of your particular amp and a matched phase inverter in V2 then go to www.kcanostubes.com and say hello to Mike from me They're Epiphone valve junior heads. So they came with the cheapest tubes possible I'm sure... One began to squeal like a pig on day 2. So, I immediately put GTs in them I picked up from GC. I was told that the higher the number on the matched sets of GTs, the higher the output before break up. So, I got the highest numbers they had laying around. 6 or 7s I think... If the description of the rating system is accurate, is there a 9 or a 10 and who would make that? Or, was that description just bunk? So, I take it no particular brand has a cleaner louder brighter punchier tone? Background: I use the heads like power amps for my Line 6 rig. I'm trying to get just enough clip to compress and round transients, but with clean low end power (punchiness) and little if any breakup. They are fairly accurate now (surprisingly so for what I paid). However, when I start pushing them to where I could possibly use them on stage, they begin to get flubbery in the bass (not enough power to pull the voice coils back) and break up in the midrange. I keep the gain knob at just under 12 o'clock (50%)... Thanks for your previous reply and your help for this board. I've learned lots from reading your replies.
  6. HEY MYLES! Who makes the highest gain before breakup tubes? Or, which Tubes have the highest amount of headroom before distortion? Manufacturer wise? I'm looking for you guys who may have complaints like, "I put these (brand X) tubes in and it was loud as !@#$^, but I couldn't get it to break up!" I'm trying to get a little more power out of my Juniors: 12AX7 EL84
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