2a3 Tube Question


I'm considering a Cary 2a3 amp. Can I roll ANY RCA tube? I throught I remembered reading something about some of the older RCA Single or Mono plates being incompatible but I can't recall the technical reasons.

Thanx.

PS Besides the RCA, any other recommendations? thanx
pawlowski6132
I had a Cary 2a3 integrated. I never compared any NOS, but the Sovteks I thought were pretty darn nice and a killer value. YMMV.
As said, EML-2A3 tubes have reliability issues. My pair didn't last a year. Then adding insult to injury the worldwide EML distributor weaseled around EML's 1-year warranty. I bought them about a year ago so they were relatively new production too. I am even out my return shipping to Germany.
I had the cary 2a3 for about a year and try just about all the 2a3 tubes available on the market..AVVT and KR audio sound best to my ear..
I'm using the ceramic base Sophia mesh plates and very satisfied. Great sonics.

Well constructed, well packed, and quick delivery.

I have no affiliation with Sophia.
I'm surprised nobody has mentioned any of the old RCA or Sylvania's??? Are these relatively poor sounding compared to the tubes mentioned above? thanx