Which brand of 45 tubes do you use?

I never got to try genuine NOS tubes; at best, I could get my hands on old tubes that tested strong.  Most of the brands I heard, like the National Unions, sounded very good.  They also don't cost a fortune. 

I haven't tried EML 45's, but, I have owned their similar 2a3 tubes, both meshplate and solid plate and they are quite nice sounding tubes. The meshplates are quite different from any other 2a3's I've heard--more open, with the soundstage more enveloping, and a "dramatic" sound (I've heard this tube described as "technicolor."

Larry,   Now that you mention it, It's very possible that some of (or maybe all) the NOS tubes I bought aren't but just tested within new specs. They came in factory boxes with what appears to be period correct wrapping. I was told they were NOS. Who knows. Doesn't really matter, they sound great.

The EML 2A3 tubes I have are solid plates. I never tried the Mesh plate type. Did you prefer one over the other?

I liked the meshplate even though it was a bit over the top.  I liked the wide open soundstage, but, if someone said the tube sounded "phasey," I wouldn't disagree.  I used it in a parallel single-ended amp (Audio Note Kageki) and it had a reasonable life span, although not the kind of life that vintage 2a3s seem to have if run conservatively.

Just a point that may be of interest. Philco never made a tube but they did rebranding. So when br mentions Philcos these tubes were most likely made by Sylvania.

Our company has multiple matched pairs of old stock 45s and one of the owners has over 20 years experience selling old stock vacuum tubes.

National Union is one of our more popular brands. A customer in the know described them as a very nice cross between a Tung Sol and a RCA. FYI.

Larry,  Thanks for sharing your thoughts. I like a wide open soundstage, "phasey" not so much. I don't know if you can answer this but even a hunch will help. Is the "phasey" sound characteristic of mesh plate EML tubes or could something else be at play? 

I am looking into trying OTL amps as well. I have never heard our new speakers powered by OTLs. Could be a nice pairing.

audition_audio, I might be interested in adding another pair of NOS 45s to my stash. Can you share or PM contact info for your company? Thanks.