NOS Tubes for Rogue Tempest II

If you can try the GE triple mica black plates.

For starters I have some NOS Sylvania 6SN7 GTB (tall) green labels coming soon. These were very reasonably priced and suppossed to be very musical. I might try some TungSol tall which are recommended also.

Jerico I found the NOS GE triple mica black plate that I had stashed to be much more precise and less fuzzy than the stock Sovtek 12ax7LPS so I can relate. Let me know how the Telefunkens workout please!!!

WOW you got some high dollar 5751's with the amp. Those 5-stars are the most expensive GE 5751's.

I used to have some NOS RCA triple mica black plates but preferred the GE's in a CD player I had. The RCA's were a little dry sounding while the GE's were more robust to my ears.

Have you heard the NOS RCA 12AX7 cleartops?

I forgot to add the seller gave me a pair of NOS RCA 12ax7 cleartops for my integrated. I have not put them in yet but he said they were a warm sounding tube. It doesn't sound like they are as warm as the Mullards you speak of.

I used some GE 12au7's on a preamp I used to have. They weren't NOS but sounded pretty good and were not very expensive.

From what a mainly gather most people seem to like the 5751's better than the 12ax7. The two times I have tried 5751's in place of 12ax7's they sound more musical and focused.

Hey thats good to hear about the 5751's over the Telefunkens. You might think differently ;) What do you like better about the 5751's? Are they more precise, less fuzzy, and focused or do the Telefunkens have more top end energy, etc....

I got my tall bottle NOS Sylvania 6SN7 GTB in last week and have listened for about 3 hrs or so. They are much better than the stock tube thats for sure. They are very open, airy, strike a nice balance from top to bottom. I don't find any one area where they are out of balance from what I can tell so far. I wonder what I may try next. I saw some rebadged Sylvania's for Baldwin on here for cheap. I think they are black plates made in the early 60's but I have a feeling the ones I have are better.

What are you using for power tubes?

Yes I agree the power tubes can get pricy. I'll get there sooner or later and thank goodness I only use 4. It does seem from what I am reading that the 5751's are working better in most systems. I will try some those RCA cleartops before long.

I agree totally about the 5751's. They made quite a difference over the stock 12AX7's. More clarity and focus. I do have some RCA clear tops that I will put in sometime soon for comparison. As far as the 6SN7's I bought the NOS Sylvania GTB tall bottle and things improved more in fact much more. I also ordered from Andy at Vintage Tubes some NOS Sylvania GTA chrome tops so can't wait to get those. These particular tubes are suppossed to be very close to the Bad Boy and 6SN7W's from what I was told.

Which ones did you try?