Thanks for the input ! Any thoughts on an EL34 ? Matsushita ? Siemens(RFT)?a Sovtek LPS will sound remarkably good in the PI position, if you can't afford a vintage Telefunken (etc) long plate.
an RFT would be my least likely choice for PI, the only thing worse would be a JJ ECC83S.
in V1 & V2, RFTs are superb for those 80s hair metal tones in a 220x !
I still go with Philips made i6x ECC83s or Tungsrams for Plexi style amps & 220x, occasionaly a Telefunken smooth plate or EI for PI.
power tubes are XF or anything RFT made (dimple tops), for semi-NOS I also dig true =C= .
I'm referencing the manufacturers here, branding is irrelevant.
there is no law, but in general I tend to prefer US tubes in Fender derived circuits, and European in Marshall, Vox etc types.
with Boogies, D-styles, Soldanos etc you just have to experiment to find the magic recipe, for me it's usually US style power tubes (Sylvania, TAD) and a mix of various preamp tubes, individually selected for that particular amp.
Skip the nos EL34s and get new sensor svetlana.HI !
Aside from Mullard & Brimar - obvious choices - what are you rolling these days ? Any NOS U.S. tubes get " the tone ". I'm looking for '60's & '70's tone - no metal. Need EL 34's & 12ax7 ideas. THX!
Yeah wide open cranked it’s subtle imo.I recently had new Svetlanas put in when my Hiwatt’s Mullard XF2s went. Still has the old Mullard ax7/at7s. I do hear a difference when I crank it up, but not enough to lose sleep over.
Still digesting this. What tubes did you end up putting in ?I was just retubing one of mine and it occurred to me that if I only use the Bright channel then I want a strong/low-noise B-section in V1 and I don't really care about the A-section as long as it works nominally. But in V2 I want a strong/low noise A-section and don't really are as much about the B-section because it's the cathode follower.
I ran a signal into one of my amps and swapped out V1 with about 25 tubes and wrote down the AC voltage for each triode in V1 just to get an idea of the relative strength of all these triodes. Next I want to crank the amp into a PowerStation and see if balanced vs lop-sided gain sounds better in the PI and which way the un-balance needs to go if at all. They always say balanced for the PI but I think that's for max signal swing. Marshalls are plenty loud, we just want good crunch.