selected power tubes, pair (RT212)
selected power tubes, quartet (RT214)
selected power tubes, sextet (RT216)
selected power tubes, pair (RT812)
selected power tubes, quartet (RT814)
selected power tubes, sextet (RT816)
selected power tubes, pair (RT822)
selected power tubes, quartet (RT824)
selected power tubes, pair (RT312)
selected power tubes, quartet (RT314)
selected power tubes, pair (RT832)
selected power tubes, quartet (RT834)
selected power tubes, pair (RT162)
selected power tubes, quartet (RT164)
selected power tubes, sextet (RT166)
selected power tubes, pair (RT152)
selected power tubes, quartet (RT154)
selected power tubes, sextet (RT156)
selected power tubes, pair (RT252)
selected power tubes, quartet (RT254)
selected power tubes, pair (RT872)
selected power tubes, quartet (RT874)
selected power tubes, pair (RT272)
selected power tubes, quartet (RT274)
selected power tubes, pair (RT372)
selected power tubes, quartet (RT374)
selected power tubes, pair (RT242)
selected power tubes, quartet (RT244)
selected power tubes, pair (RT882)
selected power tubes, quartet (RT884)
