(!!!) (BEST PAIR) EF184 Philips and Miniwatt Holland NOS 1967 same build (9.2/10ma)
(!!) (Best Single) EF184 Siemens branded Telefunken NOS 1966 (13.4ma) (strongest Ma and Gm)
(!!) (BEST SINGLE) EF184 Siemens branded Tungsol NOS 1964 (12.6ma)
6EJ7 Sylvania coated glass NOS 1970's (5 in stock)
6EJ7 US Brands NOS (8 in stock)
6EJ7 Zaerix East German NOS 1970's (12ma) strong single
EF184 Siemens rebranded Telefunken NOS 1969 (9ma)
EF184=6EJ7 Amperex Holland NOS 1970 (13.5ma)
