(!!) (Recommended Single) 5814A=12AU7 Hyperlec Brive France (Holland clone) NOS 1970's rebranded National (10.0/11.6ma)
(!!!) (Best Single 1954) 5814A=12AU7 GE "5 Star" triple mica NOS 1954 (10.2/10.8ma)
(!!!!!) (2nd Best Pair 1960) 5814A GE "5 STAR" triple mica "O" getter halo 1960 (10.0/10.4ma and 10.0/9.2ma) (best audio grade 12AU7 SUB)
