My 6g3 Brownface Deluxe clone sees a lot of gigging time and one of my NOS Sylvania 6v6's gave up in spectacular fashion. Awful noise and some smoke. Dramatic! Turns out the smoke came from the 470 ohm resistor on the tube socket, so probably it developed an internal short. It gave me several years of hard use, so no complaints. I put a spare pair of black RCAs in it for now, but I don't like them as well as the Syls. But checking online, a nos matched pair is around $100. Anyone have a recommendation of something a little more affordable for this circuit, or should I just bite the bullet and get another set of Sylvanias? Thanks!