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Thanks for sharing !

Thank you again. I hope you recovered well from covid, that disease can make one very sick.

Sorry for m late answer, I had been absent for several days. Thank you very much for your help. Indeed, I am disapointed as I hoped that either 445 or 448 would be a good replacement for 440 as they are difficult to find...moreover, as 445 are the tubes that Mesa now use in brand new Rectifers...

Thank you for the news ! I'm curious to know how they're going to sound in the Roadster

Great ! From Mesa "color bias" it seems RED are in the same category than the YEL certainly explaining why you could not tell the difference between both. I think I 'll pull the trigger on these "almost new RED tubes" (about 50h of use). Thank you again for your help 👍 !

Thank you for this very detailed answer 👍! I admit that I didn't expect that because Mesa stands on its website that STR445 present "articulate low-end for excellent bass definition along with beautifully balanced mids and a chiming top-end that cuts without harshness. It’s a great choice for...

Thanks for these informations !

Thanks for your answer, please tell us your thoughts in case you experiment STR445 ;-)

It seems that STR445 are JJ's 6L6GC if I am not wrong ? If right, and if the sonic character of the 445 is indeed similar to the 440 one, it could explain why you like them ;-)

Thanks for your answer ! What do you mean by "They may sound over the top" ? From what I read about the STR448, I understand what you mean. It seems that the STR445 would be a far better replacement for STR440 in order to retain the sonic character of the 440, these 2 tubes seeming to share...

I also love STR440 YEL in my Roadster. Unfortunately, It became very difficult to find them...I am trying to buy some as soon as they pop up but that's difficult...I have 2 new duets as a spare, but also some 440 BLU (that I never tried). Did you ?

Thank you very much for your answer. I'm reassured, and since it's ok like this, I'm going to leave it like that (y)

Hi guys ! I just realized that one of my 6L6 tubes doesn't seat perfectly in the socket. I took a photo of the back of the amp (Roadster) last september, and it was already like this (I checked the photo few minutes ago and it is strictly identical). I mainly use the amp in 50W, sometimes in...

@bandit2013, thank you very much for your very detailed answers, appreciate a lot (y)

Thank you very much for your very detailed answers, you rock !!! In conclusion, would you say that STR448 are sort of STR440 with a tighter character ? I was also interested by your remark about grey vs yellow (STR440). What do you mean by they were too much ? I have some Yellow as a a spare but...

That's great ! Thank you for these very detailed informations. I love STR440 in my Roadster and was afraid to be not able to find a similar replacement. Did you also try and compare them in your MWDR ? You mention that you plan to try a mix of tubes, like the STR440 + STR448 (or others...

You're welcome ;-) ! I hope it will solve your issue (y)

Hi pmac 11, I had a similar problem. It was the tube driving the loop that was faulty. Hope it helps !

Thanks ! I didn't know that and that seems very interesting !

Thanks for this very informative link ! I've already tested something like that with CDs attached with hooks on the grid, and although it is effective, the resulting sound is not convincing to me compared to beam blockers....I will try to call an amp tech to see if he can mount these Weber (or...