(!!!!) (Recommended Single) 5Y3GT RCA NOS 1968 (58/40 and 64/40)
(!!!) (Best Pair) 6GK5=6FQ5A Toshiba Japan rebranded Raytheon NOS (12ma and 12.5ma)
(!!!) (Best Toshiba Pair) 12AU7A Toshiba Japan rebranded Raytheon gray ribbed plates NOS 1970's (10/11.7ma and 10/12.4ma)
(!!!) (Recommended Pair) 6GK5=6FQ5A Toshiba Japan rebranded Raytheon NOS (8.7ma and 9.7ma)
(!!) 12AU7A Toshiba Japan rebranded Raytheon gray ribbed plates NOS 1970's (10/11ma) (same Gm)
(!) (#1 6DJ8 Best Value Japan) 6DJ8=M3624 Toshiba Japan Tektronix Checked NOS 1960's (11.6/13.6ma)
