All you need to know is which Mesa amp you have - the tube dealer will be able to tell you which tubes can operate best in the ranges for that Mesa amp. Eurotubes is particularly good at this (the tubes in my Mark IV came from them).
Now, if you decide to buy and install tubes "off the shelf"...
Even if you replace all of them, I would replace them one at a time (starting with v3 and v4). Otherwise, you will not know which one of your existing preamp tubes are bad. Toss the bad ones and keep the good ones as emergency spares.
There is a sticky-thread at TGP that lists a bunch of online...
I my original post, I thought you were getting a clean sound through the lead channel. Thus, the range of questions (and the question about the amp being modded).
If you are getting some distortion, and your reverb is having issues, I go back to what I was thinking earlier - either V3 or V4 is...
Yeah. I would even be willing to try my Mark IV through it. Thinking it through further, I would even love to see what my Nomad would sound like through it.
Overall: Super, super nice job!. Good work indeed.
Are you getting any reverb at all? Reverb and lead share preamp tubes V3 and V4. If your reverb is not working, perhaps one of them is bad and is letting only a clean signal through. (But, thinking it through, this may not be the issue).
Does the tone stack work for the lead channel? Does it...
Thanks for sharing. I listed to them and was surprised that I liked the Engl Powerball most. Going in I would have guessed that I would have like the Mesa better. But, to me, the Powerball stood out better that either of the other two. Plus, it was a little fatter and I would venture to guess...
Sometimes the itch can last up to six months. If you would like a safe place to keep your Mark until you recover, I operate a rescue shelter for unwanted Mesa amps. By now, your Mark V knows that you have "the itch". And, trust me, it is going to impact how it responds to you. Touch sensitivity...
I am certainly glad that you posted this. After hearing of the excellent prices the other members had found, I was sort of feeling foolish about the price I had paid. When I bought mine (it's now been 3 years or so), I looked around for several months. I bought it off of E-bay and the price was...
If it was wood, I could see that asking price. But, it's just a different color of tolex. For what it's worth, when I bought mine a while back I only paid $1100 for it. And mine had all of the extras except the manual and extra tubes. An extra pair of EL34s will run you maybe $60 (on the high end).
+1 on the 'please reconsider' idea. I like combos much more than heads only. For the way I work, they give me the best of all options. If I need to grab something quickly and play, all I have to grab is one piece of gear. Then, if I want to use a different cab and speakers, I still have the...
The solo boost doesn't kick in until its level is higher than the master volume. A few times mine has "stopped working" until I realized I had turned it down accidentally. According to the manual, it works in parallel to the regular output volume. If you play very quietly, the solo boost doesn't...
What kind of issues are you having with your 55? I have a 45 (1x12) and don't even want to think about having to replace it. It's a unique amp. I really like what it does. I can get it to sound like my Mark IV for certain tones. I can get the red channel to sound very "Marshally". It's a very...
I don't think any of the preamp tubes are used to specifically drive the contour controls. I don't have a schematic, all I did was look at the tube assignment picture in the manual.
Do I understand you correctly that both contour knobs do not work? If that is the case, would the only thing in...
The closest that I can get to a Marshall sound from my Mark IV is, believe it or not, when I use my SG on channel 2. I crank the gain, bass on 3, mids on7, treble on 7, and it sounds decent. It would not fool someone "in the know", but it is close.
I played through my Mesa Nomad 45 for a while Saturday after work. The amp played fine - no issues at all. After church on Sunday I decided to play some more. The amp powered up (lights came on and so forth), but nothing came out of the speaker. I looked around back, and the EL84s did not seem...
If you are looking at replacing and experimenting with your amp's pre-amp tubes, bear in mind that they do not need to be Mesa tubes. That requirement from Mesa applies only to power tubes (due to the non-adjustable fixed bias that they use). On my Mark IV, the only true "Mesa" pre-amp tube that...