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Well I just hope you like 'em in your hundred watt Nomad as much as I do on my 55. I will say that the Mesa EL34 STR-147 tubes seem to be a much better build quality than the 6L6GC-STR-440s. Oh yeah and don't forget considering this TAD 12AX7 preamp tube for V1...

This tube is a 12AX7 that has been tested and highly-graded by Mesa for low microphonics and stable operation. It is supposedly good to use in the V1 slot to help stabilize your amp's performance and minimize hum. However, it is my experience that while this tube does in fact help quiet down...

Thanks for the responses - I have now switched over to the EL34s in my Nomad 55 1x12 combo and for the good of others, I would like to share the results of the swap! I popped in a pair of the Mesa STR-147 EL34s (gray rating) which are rebranded Sovteks. Well, I must say that I couldn't be...

Hmm... Well there's some food for thought. I am not exactly in any position to throw down a bunch of $$$$ for a new pair of EL34s and then be disappointed. I am actually most concerned that with the EL34s, the bass response will diminish and I won't have "glassy" cleans. But at the same time...

I am experimenting further with my Nomad 55 combo and want to swap the 6L6s for EL-34s. Wondering what changes I might expect in my clean channel and what effect if any the EL-34 tubes will have on the tone in the gain channels. As always thanks for sharing! :P

Yeah, 27 is the plate current - not the "voltage". :shock: So, the Winged C's sound more focused and compressed in comparison with the Mesa 6L6 STR 440s. The bottom line is that The amp sounded great before (minus the **** tube rattle), but after the A/B comparison I would say that the Winged...

Got the go ahead from my amp tech. He said that the "27" on the box is indeed the plate voltage and the "2.3" the number for the pair matching. I will post the tone results tonight...

Thanks for some excellent responses. I picked up the Winged C's yesterday (Saturday) and the amp tech who recommended them earlier in the week wasn't in. This shop is an authorized Mesa dealer and where I bought my Nomad. Also the Tech already knows my amp, but to be sure I guess I just have to...

Nobody was able to anything in regards to the rating system of Winged C 6L6's in my last post. (The pair I have are rated at 27/2.3 on the boxes and I have no idea where this falls on their scale.) I am just going to pop them in my Nomad 55. What is the worst that can happen if they run too...

I posted earlier this week about how I have lost my love for Mesa 6L6 tubes in my Nomad 55. I have had 3 pairs of Mesa tubes go south within 2-3 months and unforgivable rattle issues. So... I am now sitting here with a matched pair of Winged C 6L6's with a rating of "27/2.3" on the little...

Sounds like it could be the power tubes because of the volume boost and drop. It is also very possible that you blew a preamp tube as well since you are having issues with the pesence. Do you have an extra pair of power tubes to try? Are they older than 6 months? Also, does channel two sound...

Okay well I am definitely calling them on Monday! Maybe there is some hope? I'm not playing at bedroom levels either, but surely not past noon on the master volume either.

Yup STR440's. One of the pairs was a replacement from Mesa. I could probably get another set from them through the warranty, but I am pretty much convinced the problem will just reoccur in a few weeks. I may just call Mesa and ask for a new replacement to use as a spare emergency pair, but I...

Hey all, I am currently on my 3rd pair of Mesa 6L6 tubes since November. I have experienced excessive tube rattle from the Mesa tubes. A local shop in town recommended that I try Winged C 6L6 tubes as the Mesa's are supposedly notorious for this problem. I am wondering if anyone can share an...

:? Well I have not had much good luck in a retubing escapade. I installed a brand new pair of Mesa 6L6 power tubes in my Nomad 55. As soon as I turned it on, I noticed that the 6L6's glow orange with a lot of blue and purple - seems odd as the original power tubes (JJ's) that were installed only...

Yesterday I retubed my Nomad55 with all Mesa tubes. Before the change, it had a pair JJ 6L6 power tubes and the Groove Tube 12AX7-C (Chinese) in V1, V2, V3 - and finally two Ruby 12AX7's in V4 & V5 (for the effects loop and PI). RESULTS: The cleans are fine, and the volume much better (new...

Thanks guys! I was able to "tackle" the job and have my new pair of 6L6's popped right in there. I now understand the "bear trap" concept on these. :P

Hey All, I have a question about installing new 6L6 power tubes in my Nomad55. I noticed that there are two metal round clips around the plastic base of the tubes. Could somebody please advise me as to how these work? Do I have to bend them out of the way to pull out the old tubes and install...