(!!!!) (Best Bugle Boy Single 1959) 12AU7 Amperex Bugle Boy England (Mullard) long plates with "D" getter like new 1959 (12.4/9.8ma)
(!!!!) (Long Plate Single) 12AU7 Mullard Heath UK long plates "O" getter used/good 1959 (8.8/9.0ma)
(!!!!) (Recommended Mullard Single) 6DJ8 RCA Mullard NOS "A" Frame getter halo 1976 (10.6/12.6ma)
(!!!!) (Recommended Single 1964) 6DJ8 Amperex Bugle Boy Holland Tektronix Checked "o" getter halo tests like new 1964 (15.5/15.6ma) 1-2% section balance
(!!!!) (Single) 6DJ8 Philips Holland low hours/like new 1967 (13.6/14.4ma) (sonically the same as Bugle Boy)
(!!!!) (Single) 6DJ8 Philips Miniwatt Holland used/tests like new 1961 (14.0/14.5ma) (similar sonically to Bugle Boy)
(!!!) (Best Single) 6DJ8 Amperex Bugle Boy Holland like new 1965 (16.8/15.5ma)
(!!!) (BEST SINGLE) 6DJ8 Amperex Holland NOS 1965 (14.6/18.6ma) (sweet and musical)
(!!) (Recommended Pair) 6DJ8 Pope and Philips Holland NOS 1967-1968 (15.8/17.4ma and 16.0/18.8ma)
(!!) (Recommended Single) 5814A=12AU7 Hyperlec Brive France (Holland clone) NOS 1970's rebranded National (10.0/11.6ma)
(!!) (Recommended Single) 5814A=12AU7 Hyperlec Brive France (Holland clone) NOS 1970's rebranded National (11.8/12.2ma)
6DJ8 Amperex Bugle Boy Holland used/like new 1964 (read review)
6DJ8=CV5358 Holland A frame used good 1971 (9.6/10ma)
