JTM 45 Tube placement

leadkane · Post by **leadkane** » Thu Jan 16, 2014 2:40 am

Have 2 NOS 50's Long Black Plate Sylvania 12ax7's and and one NOS 1960 RCA Long Grey Plate 12ax7.. any ideas as to which should go into V1 V2 OR PI?

demonufo · Post by **demonufo** » Sat Jan 18, 2014 6:59 am

I'd try the RCA in V1, and the Syl's in V2 and V3.

leadkane · Post by **leadkane** » Sat Jan 18, 2014 8:56 am

Thanks.. will try that. Any particular reason you like the RCA in the V1?

demonufo · Post by **demonufo** » Sat Jan 18, 2014 12:52 pm

I just find them to break up a little easier than Sylvania's. One of the Sylvania's in the PI would be the most definite choice I would make, but I'd most likely still stick with the RCA in V1. Very sweet sounding tubes. As are the Syl's, but they're a little glassier on the top end than the RCA.

Must admit though, I'm not familiar with blackplate Syl's specifically (other than the EL84's which I know well). Familiar with blackplate Raytheons though, and Sylvania greyplates. My choice would still be the same, order wise.

leadkane · Post by **leadkane** » Sat Jan 18, 2014 2:18 pm

Thanks... out of curiosity how do you feel about telefunkens?...I've gotten mixed reviews, everything from flat to the holy grail...

demonufo · Post by **demonufo** » Sat Jan 18, 2014 2:59 pm

Holy grail, mmmm, no. Not for guitar. That said, I've actually got a hi-gain one in V1 of my 2204 at the moment, which is as aggressive as all hell.
Smooth, clear, detailed, and a strong tube, but holy grail, not. The frame grid Telefunken ECC803 on the other hand might be a different story, but I've yet to be able to afford one. But the Tesla E83CC is an exact copy. Trouble is, there are a lot of fake Tesla ones about.

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JTM 45 Tube placement

JTM 45 Tube placement

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