Have some experience in tubes with certain component you would like to share.
I'll start with Reflector 6H30 NOS for Dodd preamps. Great combo. RCA NOS tubes for tubed power supplies. Lector and Telefunken [ 12AT7 ].
Sletvana 6550 for AR amps. They love RCA 6FQ7 as driver tube.
charles
Quote from: rollo on December 13, 2013, 08:52:25 AM...Sletvana 6550 for AR amps....
Are you talking about the
original Svetlana (Winged C — St. Petersburg) SV6550C, which are out of production now? Or the New Sensor "Svetlana" (Boxed S) ones made at the Xpo-Pul factory in Saratov?
In the former case, I agree (but you have to be careful).
As far as a good tube-gear symbiosis (for my system anyway):Cifte ECC89 and ОРЗЭЛ (ORZEP) 6N23П are the best combination I've found for the Moscode Minuet in A, and the НЭВЗ (NEVZ) gold grid 6Н6П's with 1950's Фотон (Foton) steel-plate GМ-70's absolutely
killed in my Single-Ended Triode monoblocks!
Unfortunately, they were only on loan from a friend, so I usually run "standard" (Ulyanov) graphite-plate ГM-70's and swap in Svetlana copper plates for a capella, opera, or other midrange-heavy content — (at least until I can find an affordable pair of the Fotons).