Tube, Start Year: 01/01/1965

Used in models:4400, 3500, 655A, 3400, 535, 4410, 420, 3550, 335, 4140, 532, 515, 4500, 1118, 2600R, 5340, 3150, 531, 2100, 3600, 3100, 7600C, 5610, 6600, 2300, 2310, 4600SU, 3000-SERIES, 4330, 6600C, 4600O, 3055, 4200, 7610O, 7000-SERIES, 2120, 3300, 6710, 4340, 6410, 3600R, 6700, 4000-SERIES, 3330, 5190, 5900, 7700, 3900, 6610O, 5200, 3600N, 3190, 5000-SERIES, 2600V, 4100, 5600, 2110, 3600NO, 5110, 6600O, 3310, 233, 5700, 7710, 4190, 7200, 5100, 6810, 7410, 4600NO, 2600N, 3120, 3600V, 7100, 2000-SERIES