(!!!) (BEST PAIR) EF184 Mullard branded Philips NOS 1965 (10.8ma and 11.2ma) 1-3% matched
(!) (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 Philips Mullard UK NOS 1965 (18.6ma)
6EJ7 RCA by Siemens Germany NOS 1972 (12.4ma)
6EJ7 RCA by Siemens Germany NOS 1971 (10ma)