I have 1944 JAN NOS RCA 6SL7s and black plate 12AU7 but went back to a contemporary Rectifier for the punch.
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Interesting that the Sylvania isn't working out for you. Sounds good in a B-15.
I have a set of early 60s GE 6SL7s, a late 50s Tesla EZ81, and a late 60s-early 70s RCA 12AU7 in there and I definitely notice a difference from the stock tubes!
What is the difference you hear ? If you could describe the difference that would be great.
My Tardis is supposed to ship in few weeks so I am curious.
I used a Hughes and Kettner BATT preamp for quite some time and did a fair amount of tube rolling there.
Thanks
Honestly, hard to describe with words. Overall, just more depth and I notice more out of the EQ when I dial it in. Specifically in the mids, which I noticed immediately, are a tad thicker but still cut through beautifully, and the bass sounds a bit warmer as well. Nothing wrong with the stock tubes at all, I just wanted to try it out with some vintage tubes and it certainly didn't sound worse!
I'm a dangerous combination of superstitious and lazy. I love the way Monique sounds - I'm not touching any of the tubes unless something breaks.![]()
Eh. Different amps, different ears. I've tried Sylvanias in other amps (12ax7, 12au7) and felt the same way. It's just a clean precise sounding tube to my ear and to me isn't as rich, but maybe more detailed. It's all subjectively when talking tubes. The most revealing tube test I've had was my old 65Vibrochamp and a big box of 12a-7 tubes with few sets of ears. Most everyone loved the old RCA black plates the best, with greyplates second and the GE's of the same era being close. I also liked older Telefunkens. I didn't like the vaunted Mullards. I also didn't like the Sylvania, Ratheon or even the Tung Sol 12a-7's. we re-ran the tubes in a Deluxe and had the same results.
I'm a dangerous combination of superstitious and lazy. I love the way Monique sounds - I'm not touching any of the tubes unless something breaks.![]()
I remember saying the same thing.![]()

I am the same.
Not for fear of electrocution or potentially breaking something... i am just lazy and maybe too easy to please.
I hate to admit it but my amps have always sounded good with basic tubes like Mesa, JJ or GT. Add a loud drummer and 2 distorted guitars.... I don't see the need for expensive NOS for my gigging amps. If I did a ton of studio work, I might feel different.![]()
As a result of this I looked at a few tube pages. Hard to know where to start though - lots of somewhat seemingly random choices.
If anyone has suggestions on how I can spend small amounts of money in interesting ways, I'm all eyes![]()
As a result of this I looked at a few tube pages. Hard to know where to start though - lots of somewhat seemingly random choices.
If anyone has suggestions on how I can spend small amounts of money in interesting ways, I'm all eyes![]()