(!!!!) (Best Overall Pair) JAN-6528A Raytheon NOS 1978 (132/138ma and 143/144ma)
(!!!) (Best Overall Single) 6528A Cetron like new 1987 (138/142mA)
(!!!) (Best Overall Single) 6528A Cetron NOS 1980 (132/139mA)
(!!) (2nd Best Pair) 6528A Cetron used/very good 1987-1989 (110/114ma and 117/122ma)
6528A Cetron like new 1989 (102/110mA)
6528A Cetron low hours/like new 1980 (97/134mA)
6528A Cetron low hours/like new 1989 (100/122mA)
6528A Cetron NOS 1989 (100/135mA)
6528A Cetron tests like new 1979 broken guide pin (111/124mA)
6528A Cetron used/good 1979 broken guide pin (99/117mA)
6528A Cetron used/good 1987 (104/106.5mA)
6528A Cetron used/good 1987 (112/113mA)
6528A Cetron used/good 1989 slightly tilted glass (94/127mA)
6528A Raytheon graphite plates like new 1970 era (125ma/135ma)
6528A Raytheon NOS graphite plates 1970 era (119/129mA)
