(!) (Best Single) F2a Siemens NOS 1960's (112ma) Tested on Amplitrex (pairs sold out)
(!) (Best Value Pair) ECC84=6CW7 Ultron East Germany by RFT 1970's 2-3% matched (9.6/11.6ma and 9.0/11.0ma)
(!) (Best Value Single) ECC81=12AT7 Siemens Halske Germany "D" getter 1960 era used/good (8.8/7.5ma)
(!) (Best Value) 12AT7WA Raytheon black plates - triple mica - O getter halo 1965 era like new (8.5/9.2ma)
(!) (Good Value Single) ECC85 Siemens Halske Germany branded RCA NOS 1969 (9.2/8.6ma)
(!) (Recommended Single) 6GM8=ECC86 SIEMENS HOLLAND NOS 1970 (4.0/5.0ma)
(!) (Recommended Single) PCC88=7DJ8 Tesla NOS 1968 (12.5/15.5ma)
(!) (Recommended Single) PCC88=7DJ8 Tesla NOS 1968 (13.2/14.0ma)
(!) (Single) E288CC=8223 Siemens Halske Germany NOS 1974 (36/35ma)
(!) (SINGLE) ECC85=6AQ8 Sylvania black plates NOS 1960's (10.2/10.4ma)
(!) (SINGLE) ECC85=6AQ8 Sylvania black plates NOS 1960's (12.2/9.8ma)
(!) (SINGLE) ECC85=6AQ8 Sylvania black plates NOS 1960's (8.4/14ma)
(!) (SINGLE) EF184 Philips Mullard UK NOS 1965 (11.5ma)
(!) (SINGLE) EF184 Philips Mullard UK NOS 1965 (12.2ma)
(!) (SINGLE) EF184 Philips Mullard UK NOS 1965 (15.2ma)
(!) (SINGLE) EF184 Philips Mullard UK NOS 1965 (15.6ma)
(!) (SINGLE) EF184 RCA Holland NOS 1962 (10ma)
(!) (SINGLE) EF184 RCA Holland NOS 1962 (9ma)
(!) 6DL5=EL95 Mullard Philips UK NOS 1969 (26.6ma)
(!) 6DL5=EL95 Philips Miniwatt Holland made in Moza Italy NOS 1965 (20ma)
