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
128x128pawlowski6132
Buying old power tubes is a crap shoot. Given the expense involved, most folks are a bit apprehensive investing in $500+/pair without a warranty.

The tubes might very well be NOS NIB but in many cases the seller has no idea how and where the tubes were stored which is critical.

All of course IMO.
Sorry can't help you. All the 2A3 amps I've heard have used contemporary tubes i.e. KR, Sophia, et. al.
I have, and occasionally use, dual plate RCA and Cunninghams. They are, in my application, and for my taste, better than the Sovtek, but not quite as good as the EML meshplates -- good top end extension but a touch dry and analytical and lean in the midbass.

I have heard single-plate RCAs and they are fantastic, but they are much more expensive than even the EML tubes.

I just got today the JJ 2a3. I will see how those sound tonight.