selected preamp tube (RT080)
selected preamp tube ECC83WA (RT095)
selected preamp tube ECC83WB (RT093)
selected preamp tube (RT001)
selected preamp tube 7025 / E83CC (RT030)
selected preamp tube (RT003)
selected preamp tube (RT006)
selected preamp tube (RT009)
selected preamp tube 12AT7 / ECC81 (RT002)
selected preamp tube (RT046)
selected rectifier tube (RT521)
selected power tubes, pair (RT152)
selected power tubes, quartet (RT154)
selected power tubes, sextet (RT156)
selected power tubes, pair (RT272)
selected power tubes, quartet (RT274)
selected power tubes, pair (RT882)
selected power tubes, quartet (RT884)
selected power tubes, sextet (RT886)
selected rectifier tube (RT521)