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(!!) 5751 Sylvania misbranded 12AX7WA NOS 1960's (1.9/1.9ma)
(!!) 5751W1 Sylvania triple mica "O" getter halo used/good early 1960's misbranded 12AX7WA (1.8/2.0ma)
(!!) 6BL7GTA GE NOS "D" getter 1958 (43ma/53ma)
(!!) 6SN7GTB Raytheon black plates NOS 1960's (7.8/8.2ma)
(!!) EL822 Mullard black plate NOS 1974 (51ma)
(!) (#1 12AT7 Value) 12AT7 Sylvania branded Philips black plates NOS 1970's (7.6/8.2ma)
(!) (Best Single) 407A Western Electric NOS 1962 (44/26 and 49/26)
(!) (Best Value Single) 5687WA Sylvania JAN used/good faded printing 1970's (31/35.8ma)
(!) (Best Value Single) ECC82=12AU7 Zaerix East Germany NOS 1970's (12.8/12.0ma) (same Gm)
(!) (Good Value) 6BQ5 Sylvania gray plate used/very good 1960's faded printing (47.5ma)
(!) (READ REVIEW) GZ34 Raytheon Japan by Matsushita NOS similar sound and build to Mullard NOS 1970's (59/40 and 59/40 x 2 tubes)
(!) (Recommended Single) 6EU7 RCA NOS 1970's (51/32 and 60/32)
(!) (SINGLE) 6BQ5 Sylvania black plate NOS 1970's (46ma)
(!) (Single) 6L6WGB=5881 Sylvania black base NOS 1975 (78.5ma)
(!) 12AT7 East Germany branded "M" Mühlhausen NOS 1970's (8.4/9.0ma)
(!) 12AX7A Amperex by RFT East Germany NOS 1970's (Gm=1300/1400)
(!) 12SN7GTA GE NOS 1958 (9.0/7.5ma) (same Gm)
(!) 6BQ5 GE used/good 1960's (35.5ma)
(!) 6EU7 RCA NOS 1970 era (51/32 and 52/32)
(Best Single) 6BQ5 Raytheon NOS 1960's (62ma)
