has anyone on this board ever re-tubed a 610 preamp? and would selecting a differnt brand of tube help clean up the muddiness of this preamp at all?

Ok, so I've got some old PreSonus Blue Tube mic preamp's that have been collecting dust. Let me first say this, I personally don't think the Blue Tubes are as "terriable" of mic preamp's as everyone makes them out to be. True, they are on the low end of the spectrum, but they do add gain and a level of warmth.

Has anybody tried the new JJ Tesla ECC83S tubes yet as a replacement to stock OEM ones?

8) Hi boys, I need change the tubes of my MANLEY VOXBOX. It would like an opinion: What would be the best tubes for if put in manley? Telefunken? GE? RAYTHEON? What do you recommend me?

Hi

Just wondering what the figures for tests on tubes represent, and what are good figures?

Below I have two examples of testing figures for matched pair tubes. Which are the better performing tubes, and why?

1. Tested : 13.5/11.8-12.4/11.2 7LC delta 0C1

13.1/11.4-12.5/11.4 7LG delta OC1

2. Tested : 9.8/9.8-9.5/9.5 7xx delta9A2

I have been reading about telefunken tubes in some of the post lately. Where are you guys getting these from?

I have a lovely Pendulum to cover my tube pre needs. I don't have a tube mic, however. The cheap ones I've auditioned have a bit of gauze over the picture, but I assume good ones can sound spectacular and clear. Here's question 1. All things being equal which I know they are not, will a nice tube pre obviate a tube mic.

I just finished replacing the tubes on my 2000e with some J.Js ECC81s--I must sayafter opening up the hood on the Seb,Im very impressed with the craftsman ship (hand built).
I havent seen "real hand soldering" in a long time.

As Ive stated before,I own a used 2000e and was considering replacing the tubes,I was able to locate a pair of J.J. ECC 81 12AT7s(new).
Im getting ready to lay vocal tracks,
1. Is there anything I should look out for as far as replacing the
the tubes
2. How many hrs of use on the Seb before they brk in?

Hi
I bought an Oktava MKL5000 and it was complete crap so the seller replaced it. The new one was ok, but the noise performance was not as good as I had hoped, so I decided to mess around with different valves. What really surprised me was how different each valve sounded.

I tried Mullard EF95s, and while they were too noisey, the sound was very rich and full.